Method and system for forming plug and play metal compound catalysts

Information

  • Patent Grant
  • 9186663
  • Patent Number
    9,186,663
  • Date Filed
    Monday, August 26, 2013
    11 years ago
  • Date Issued
    Tuesday, November 17, 2015
    9 years ago
Abstract
A metal compound catalyst is formed by vaporizing a quantity of catalyst material and a quantity of carrier thereby forming a vapor cloud, exposing the vapor cloud to a co-reactant and quenching the vapor cloud. The nanoparticles are impregnated onto supports. The supports are able to be used in existing heterogeneous catalysis systems. A system for forming metal compound catalysts comprises means for vaporizing a quantity of catalyst material and a quantity of carrier, quenching the resulting vapor cloud, forming precipitate nanoparticles comprising a portion of catalyst material and a portion of carrier, and subjecting the nanoparticles to a co-reactant. The system further comprises means for impregnating the of supports with the nanoparticles.
Description
BACKGROUND OF THE INVENTION

In the oil refining and fine chemical industries, catalysts are required to transform one chemical or one material into another. For example, to make cyclohexane from benzene, benzene is passed through porous ceramic supports that have been impregnated with catalysts designed and configured to hydrogenate it into cyclohexane. In one particular process, platinum is nitrated and impregnated onto supports in the wet chemical process 100 shown in FIG. 1. A platinum group metal, such as platinum, osmium, ruthenium, rhodium, palladium or iridium, is collected in step 101. For the sake of brevity, platinum will be discussed herein but it will be apparent to those of ordinary skill in the art that different platinum group metals can be used to take advantage of their different properties. Since blocks of elemental platinum are not useable as a catalyst, the platinum is nitrated in the step 102, forming a salt, specifically PtNO3. The nitration is typically performed using well known methods of wet chemistry. The PtNO3 is dissolved into a solvent such as water in a step 103, causing the PtNO3 to dissociate into Pt+ and NO3— ions. In the step 104, the salt is adsorbed onto the surfaces of supports 104B through transfer devices 104A, such as pipettes. An example of a support 104B is shown in FIG. 2. Generally, a support 104B is a highly porous ceramic material that is commercially available in a vast array of shapes, dimensions and pore sizes to accommodate particular requirements of a given application. The supports 104B are dried to remove water then transferred to an oven for an air calcining step 105. In the oven, the supports 104B are exposed to heat and optionally pressure that causes the Pt+ to coalesce into elemental Pt particles on the surfaces of the supports 104B. In the step 106, end product catalysts are formed. The end product is a support 104B that is impregnated with elemental platinum. These supports are generally used in catalytic conversion by placing them in reactors of various configurations. For example, benzene is passed through the supports 104B which convert the benzene into cyclohexane in the fine chemical industry. In the oil refining industry, the supports are used in a similar fashion. The process steps are used to convert crude oil into a useable fuel or other desirable end product. The process described in FIG. 1 has opportunities for improvement. Although the platinum sticks sufficiently well to the surface of the support 104b, platinum atoms begin to move and coalesce into larger particles at the temperatures that catalysis generally occurs. It is understood that the effectiveness and activity of a catalyst are directly proportional to the size of the catalyst particles on the surface of the support. As the particles coalesce into larger clumps, the particle sizes increase, the surface area of the catalyst decreases and the effectiveness of the catalyst is detrimentally affected. As the effectiveness of the catalyst decreases, the supports 104B must be removed from the reactors and new supports added. During the transition period, output is stopped and overall throughput is adversely affected. Also, platinum group metal catalysts are very expensive, and every addition of new supports comes at great cost. What is needed is a plug and play catalyst that is usable in current oil refineries and fine chemical processing plants, allowing an increase in throughput and decrease in costs.


SUMMARY OF THE INVENTION

A method of making a metal compound catalyst comprises providing a quantity of nanoparticles, wherein at least some of the nanoparticles comprise a first portion comprising catalyst material bonded to a second portion comprising a carrier, providing a quantity of supports; and impregnating the supports with the nanoparticles. In some embodiments, the supports comprise pores and voids. The catalyst material comprises any among a list of at least one metal, at least one metal alloy, and any combination thereof. Also, the catalyst material comprises any among a list of nitrogen, carbon, phosphorous, hydrogen, oxygen, sulfur, and any combination thereof. Preferably, providing a quantity of nanoparticles comprises loading a quantity of catalyst material and a quantity of carrier into a plasma gun in a desired ratio, vaporizing a quantity of catalyst and quantity of carrier, thereby forming a vapor cloud quenching the vapor cloud, thereby forming precipitate nanoparticles, and injecting a co-reactant such that the co-reactant will react with one of the vapor cloud, the first portion of the precipitate nanoparticles and any combination thereof. The co-reactant is injected into a substantially low oxygen environment. The co-reactant comprises any among a list of a carbon compound, a nitrogen compound, a phosphorous compound, and oxygen compound, a hydrogen compound, a sulfur compound, and any combination thereof. Preferably, the carrier comprises an oxide such as silica, alumina, yttria, zirconia, titania, ceria, baria, and any combination thereof. Preferably, impregnating the supports comprises suspending the nanoparticles in a solution, thereby forming a suspension, and mixing the suspension with a quantity of the supports. Alternatively, impregnating the supports comprises suspending the nanoparticles in a solution, thereby forming a suspension, and mixing the suspension with a slurry having supports suspended therein. The slurry comprises any among an organic solvent, an aqueous solvent, and a combination thereof. Preferably, the method further comprises drying the supports. The method further comprises exposing the supports to any one of heat, pressure or a combination thereof, thereby calcining the nanoparticles onto the supports.


A system for forming a metal compound catalyst comprises means for providing a quantity of nanoparticles, wherein at least some of the nanoparticles comprise a first portion of catalyst material bonded to a second portion of carrier, means for collecting the nanoparticles, means for forming a suspension by mixing the nanoparticles into a liquid, and means for combining the suspension with a quantity of supports, thereby supports with the dispersion. Preferably, the catalyst material comprises any among a list of at least one metal, at least one metal alloy, and any combination thereof. Also, the catalyst material comprises any among a list of nitrogen, carbon, phosphorous, hydrogen, oxygen, sulfur, and any combination thereof. Preferably, the means for providing a quantity of nanoparticles comprises means for loading a quantity of catalyst material and a quantity of carrier into a plasma gun in a desired ratio means for vaporizing the quantity of catalyst material and carrier material in a reaction chamber, thereby forming a reactant vapor cloud means for quenching the reactant vapor cloud thereby forming solid nanoparticles, and means for injecting a co-reactant such that the co-reactant will react with any among the vapor cloud, the first portion of the nanoparticles, and any combination thereof. Preferably, the means for injecting a co-reactant comprises means for injecting the co-reactant into a substantially low oxygen environment. The co-reactant comprises any among a list of a carbon compound, a nitrogen compound, a phosphorous compound, an oxygen compound, a hydrogen compound, and any combination thereof. The system further comprises means for drying the supports. Preferably, the system further comprises means for exposing the supports to any among heat, pressure, and a combination thereof thereby calcining the nanoparticles onto the supports. Preferably, means for combining the suspension with supports comprises means for impregnating supports with the suspension. Alternatively, the means for combining the suspension with supports comprises means for mixing the suspension with a slurry having supports. The slurry comprises any among an organic solvent, an aqueous solvent, and any combination thereof.





BRIEF DESCRIPTION OF THE DRAWINGS

The invention is better understood by reading the following detailed description of an exemplary embodiment in conjunction with the accompanying drawings.



FIG. 1 prior art illustrates an existing process for forming a useful support for use in heterogenous catalysis.



FIG. 2 prior art shows a porous support generally used as a support in heterogeneous catalysis.



FIG. 3 shows the preferred embodiment of a novel process for forming a support for use in heterogeneous catalysis.



FIG. 4A shows an example of a nanoparticle formed as part of the process of FIG. 3.



FIG. 4B shows a close up of an impregnated porous support.



FIG. 4C shows a close up of an impregnated macro support.



FIG. 5 shows an example of the supports being used as heterogeneous catalysts.



FIG. 5A shows the hydrogenation of benzene into cyclohexane.





DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to implementations of the present invention as illustrated in the accompanying drawings. The drawings may not be to scale. The same reference indicators will be used throughout the drawings and the following detailed description to refer to identical or like elements. In the interest of clarity, not all of the routine features of the implementations described herein are shown and described. It will, of course, be appreciated that in the development of any such actual implementation, numerous implementation-specific decisions must be made in order to achieve the developer's specific goals, such as compliance with application, safety regulations and business related constraints, and that these specific goals will vary from one implementation to another and from one developer to another. Moreover, it will be appreciated that such a development effort will be a routine undertaking of engineering for those of ordinary skill in the art having the benefit of this disclosure.


The following description of the invention is provided as an enabling teaching which includes its best currently known embodiment. One skilled in the relevant arts, including but not limited to chemistry and physics, will recognize that many changes can be made to the embodiment described, while still obtaining the beneficial results of the present invention. It will also be apparent that some of the desired benefits of the present invention can be obtained by selecting some of the features of the present invention without utilizing other features. Accordingly, those who work in the art will recognize that many modifications and adaptations to the present inventions are possible and may even be desirable in certain circumstances, and are a part of the present invention. Thus, the following description is provided as illustrative of the principles of the present invention and not in limitation thereof, since the scope of the present invention is defined by the claims. The terms “nanoparticle,” “nanoparticle powder,” and “nano powder” are generally understood by those of ordinary skill to encompass a quantity of material comprising particles on the order of nanometers in diameter, as described herein. The term “metal compound” is generally understood by those of ordinary skill to encompass a compound comprising at least one metal and at least one non metal.



FIG. 3 illustrates the inventive steps for a process 300 of forming a “plug and play” catalyst for use in such industries as chemical manufacturing and oil refining. The method begins at the step 310. A quantity of a catalyst material 312 is loaded into a plasma gun 315. Preferably, the catalyst material 312 comprises a transition metal. Transition metals (TM) and their compounds are able to provide excellent catalytic properties. Although transition metals are described, all metals are contemplated. Other metals, such as platinum group metals and poor metals, also exhibit catalytic properties. Generally, transition metals comprise scandium, titanium, chromium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, yttrium, zirconium, niobium, molybdenum, cadmium, tantalum, tungsten, and mercury. Poor metals comprise aluminum, germanium, gallium, tin, antimony, lead, indium, tellurium, polonium and bismuth. Platinum group metals comprise ruthenium, rhodium, palladium, osmium, iridium, and platinum. The catalyst material 312 is able to comprise more than one starting metal. By way of example, the material 312 is a single alloy comprising multiple metals. Alternatively, the catalyst material 312 comprises multiple homogenous metals or metal compounds such as oxides. Particularly, metals are used in heterogeneous catalysis. Heterogeneous catalysts provide a surface for the chemical reaction to take place on or provide an activation point for chemical reactions. Also, in step 310, a quantity of carrier material 314 is loaded into the plasma gun 315. In some embodiments, the carrier material 314 is an oxide. By way of example, oxides such as Alumina (Al2O3), Silica (SiO2), Zirconia (ZrO2), Titania (TiO2), Ceria (CeO2) Baria (BaO), and Yttria (Y2O3) can be used. Other useful oxides will be apparent to those of ordinary skill. In some embodiments, the catalyst material 312 and carrier material 314 are loaded manually into a hopper (not shown) which automatically loads the materials into the plasma gun 315. In alternate embodiments, an automated system is able to load the catalyst material 312 and oxide carrier 314 into the plasma gun 315. The ratio of the TM to the carrier can be adjusted to meet particular demands of a given application. Next, in step 320, the plasma gun 315 vaporizes the catalyst material 312 along with the carrier 314 to form a vapor cloud 325. The vapor cloud will comprise both the catalyst material, for example TM, and the carrier in the ratio that was loaded into the plasma gun 315 in step 310.


Still referring to FIG. 3, the resulting vapor cloud 325 is then put through a quenching step 330. Preferably, the quenching step occurs in a highly turbulent quench chamber 327 to facilitate rapid, even, consistent quenching of the vapor cloud 325 into precipitate nanoparticles. Such a rapid quench chamber is described in detail in [US app# for SDC 02000], and is hereby incorporated by reference. As the gaseous TM and carrier cool, they solidify into nanoparticles. An example of a resulting nanoparticle 400 is shown in FIG. 4A. As shown, the nanoparticle comprises a portion of carrier 410, and a portion of TM catalyst 420. The ratio of size between the TM catalyst 420 and carrier 410 will generally be determined by the ratio of the starting quantities of catalyst material 312, such as TM and carrier material 314 in the step 310 of FIG. 3. To further enhance the catalytic effects of the TM, the TM is combined with a nonmetal to form a metal compound. Preferably, the combination is effectuated by injecting a co-reactant, in this example a co-reactant gas 337 into the reaction chamber 327. Preferably, the co-reactant 337 is injected as a gas post plasma. In some embodiments, the injected gas 337 is organic. Alternatively, the injected gas is an oxygen compound, a hydrogen compound, a nitrogen compound, a phosphorous compound, a sulfur compound, or a carbon containing compound. Preferably, as the particles 400 precipitate, the gas 337 dissociates into its component elements that then react with the metal portion 420 of the nanoparticle 400. Alternatively, a chemical reaction occurs between the gas to the metal portion 420 of the nanoparticle 400. As described, the gas 337 interacts with the metal portion 420 of the nanoparticles 400 after the nanoparticles have precipitated from the vapor cloud 325. Interaction between the gas 337 and the vapor cloud 325 itself is also contemplated. The gas 337 dissociates into its constituent elements which then react with the catalyst material 312 in its vapor state before precipitation. Alternatively, the gas 337 reacts with the catalyst material 312 without dissociating. It is understood the reaction of the gas 337 with the catalyst material 312 or metal portion 420 of the nanoparticle 400 is able to occur before, during, or after precipitation, or may begin before precipitation and complete after precipitation. By way of example, and not intended to be in any way limiting, if the end catalyst product desired is the metal compound tungsten carbide, the starting catalyst material 312 will be a quantity of tungsten. Along with a quantity of a carrier 314, such as alumina, the quantity of tungsten is loaded into the plasma gun 315. After vaporization, nanoparticles of tungsten will collide with nanoparticles of alumina and form the nanoparticles 400. Further down the reaction chamber 327 from the plasma gun 315, methane vapor 337 (CH4) is injected. It is important to note that the methane vapor 337 is injected into the reaction chamber 327 where the temperature is sufficient to dissociate methane into its components, carbon and hydrogen. Alternatively, the methane reacts with the tungsten. As described above, the reaction is able to occur before, during, after, or throughout the precipitation of tungsten-on-alumina nanoparticles 400. Also, to avoid combustion of the methane into carbon dioxide and water, rather than elemental carbon and hydrogen, a substantially low oxygen environment is provided for the reaction chamber 327. A low oxygen reaction chamber is described in detail in U.S. patent application Ser. No. 13/961,200 (U.S. Pat. No. 9,119,309) and is hereby incorporated by reference. When the methane dissociates, the hydrogen atoms form hydrogen vapor. The carbon atom is known to be extremely reactive, and will carburize the tungsten forming tungsten carbide. Alternatively, a chemical reaction will react the methane to the tungsten. Referring to the example nanoparticle 400 in FIG. 4, the catalyst portion 420 is the metal compound tungsten carbide. It can be appreciated by those of ordinary skill in the art that other compound catalysts are able to be formed by the process 300. If a different metal compound, such as a metal nitride is the desired final product, the desired metal will be loaded into the plasma gun 315 and ammonia (NH3) rather than methane will be injected into the reaction chamber 327. As ammonia dissociates into its constituent elements, they will react with the desired metal to form a metal nitride. It will be apparent to those of ordinary skill that many combinations of metals and nonmetals are able to be combined in the manner described, and the two examples given are not intended in any way to limit the scope of the disclosure. As new catalysts are required for new chemical processes, the process 300 is able to be applied through a routine, although possibly time consuming engineering endeavor. The particles 400 will generally be in the range of 0.5 to 200 nm in size, and can be as small as a molecular length of the catalyst portion 420 and as large as would be achievable by ball milling. The particle size is able to be varied with varying starting materials, vaporization speeds, quench speeds and plasma temperatures.


U.S. Pat. No. 5,989,648 to Phillips discloses a method for forming nanoparticle metal catalysts on carriers. However, referring back to FIG. 3, it is important to note that nanoparticles 400 such as the one shown in FIG. 4 are not generally compatible with existing processes for chemical conversion. For compatibility with existing processes, the nanoparticles 400 are bonded to a support. To that end, more steps are taken to bring the nanoparticles 400 to a useable form. In some embodiments, the process 300 continues with step 340, where the nanoparticles 400 are combined with a liquid to form a dispersion 345. Preferably, a liquid that will not react with the TM or the carrier material is used. Some appropriate liquids are aqueous solutions or organic solutions employing solvents such as alcohols, ethers, hydrocarbons, esters, amines, or the like. Since the nanoparticles 400 are small, other precautions are generally taken to ensure that they suspend evenly within the dispersion. To that end, an adjunct 348 is able to be added to the dispersion. The adjunct 348, also referred to commonly in the art as a surfactant or dispersant, adheres to the nanoparticles 400 and causes them to repel each other, thereby causing the nanoparticles 400 to suspend evenly in the dispersion 345. The dispersion 345 is also referred to as a suspension.


To bring the nanoparticles 400 closer to a usable catalyst, the nanoparticles 400 are impregnated onto supports 355. The supports 355 are also known to those skilled in the relevant art as porous oxides. Alternatively, the supports 355 are also referred to as extrudates because they are generally made using an extrusion process. The supports 355 are similar to the supports 104b in FIGS. 1 and 2. Such supports have found utility due to their highly accessible and large surface area, as high as 250 m2/g. In alternative embodiments, a macroscopic support particle is able to be used. In such an embodiment, the size of the macroscopic support particle is selected to provide maximum surface area to which nanoparticles 400 are bonded or fixed. The step 350A shows the preferred embodiment of achieving the impregnation. The dispersion 345 is combined with a quantity of substantially dry porous supports 355A to form a mixture 359A. Alternatively, as shown in the step 350B, the dispersion 345 is combined with a slurry 358 having macroscopic support particles 355B suspended therein, thereby forming the mixture 359B. The slurry 358 is able to be a suspension of water, alcohol, or any suitable organic or inorganic liquid which will not react with the macroscopic supports 355B or nanoparticles 400. In the step 350A, capillary forces will draw in the dispersion 345, and in turn the nanoparticles 400, into the various voids and pores within the structure of the porous supports 355A, thereby forming impregnated porous supports 365A. To aid in the impregnation, the mixture can be agitated or subjected to heat or pressure. In the step 350B, nanoparticles 400 come to rest on the surfaces of macroscopic supports thereby forming impregnated macro supports 365B. In some embodiments, the steps 350A or 350B are repeated at least once for enhanced impregnation.


Next, in the steps 360A and 360B, the impregnated porous supports 365A or macro supports 365B are allowed to dry. A close up view the impregnated porous support 365A is shown in FIG. 4B. As the liquid in the dispersion 345 evaporates, the nanoparticles 400 settle onto the surface of the support 365A and into the pores 367 within the support 365A. FIG. 4C shows an example of an impregnated macro support 365B. As the liquids in the dispersion 345 and slurry 358 dry, nanoparticles 400 settle onto the surface of the macro support 365B. When the impregnated porous supports 365A or macro supports 365B dry, electrostatic interactions and other non covalent forces between the nanoparticles 400 and the porous supports 365A or macro supports 365B effectuate some adhesion. Advantageously, such forces cause the nanoparticles 400 to stick onto the surfaces and pores 367 of the supports 365A or 365B, and effectuate transfer of the supports 365 through the remainder of the process 300. Referring back to FIG. 3, a calcining step 370A or 370B is performed to form oxide-oxide bonds between the carrier portion 410 of the nanoparticles 400 and the impregnated supports 365A or 365B by exposing them to heat 372, pressure 375, or a combination thereof. The calcining temperature is generally from 350 to 1000 degrees centigrade, and the pressure is on the order of ambient atmosphere to several atmospheres. Calcining is able to occur in an inert environment or in air. For optimum oxide-oxide bonds, the carrier material 314 is chosen to correspond to the material of which the support 365A or 365B is comprised. By way of example, if the carrier material 314 is alumina, then the support 365A or 364B preferably comprises alumina, although dissimilar oxides are also contemplated. Due to the physical and chemical bond between the supports 365A and 365B and the nanoparticles 400, islands of nanoparticles that are bonded, fixed or otherwise pinned to the surfaces of the supports 365A or 365B will not migrate and coalesce during catalytic conversion. The surface area for catalysis remains high, and therefore the catalytic activity remains high. In effect, operations such as fine chemical plants and oil refineries will not be required to stop operations and swap out ineffective catalyst supports with fresh catalyst supports with the same frequency as existing processes, thereby increasing throughput at the plants and refineries and reducing their overall cost of operation.



FIG. 5 shows an example of the impregnated porous supports 365A being used in the fine chemical industry to hydrogenate benzene into cyclohexane. Macro supports 365B are able to be used as well. Although this example details use in the fine chemical industry, it will be apparent to those of ordinary skill in the arts of chemistry, chemical engineering, or the like that any process using heterogeneous catalysis is able to benefit from this disclosure. An amount of impregnated porous supports 365A is loaded into a reactor 510. Preferably, the reactor 510 has a mesh opening 515 on one end wherein the meshing has a smaller opening pitch than the size of the supports 365 such that the supports 365 do not fall through the opening 515. Benzene is passed into the vat 510 via the conduit 520. As the benzene passes through the vat 510, the benzene fills into the voids and pores of the supports 365A.



FIG. 5A shows an example of a benzene molecule 525 being hydrogenated into cyclohexane 525A in a cross section of a pore 367. When the benzene molecule 525 comes into contact with the catalyst portion 420 of the nanoparticle 400 that is bonded to the surface of the support 365A, the catalyst portion 420 of the nanoparticle 400 will effectuate hydrogenation of the benzene molecule 525 and hydrogen molecules 525B into cyclohexane 525A.

Claims
  • 1. A metal compound catalyst prepared by a method comprising: a. providing a quantity of nanoparticles, comprising the steps: i. loading a quantity of catalyst material in powder form and a quantity of carrier comprising an oxide into a plasma gun in a desired ratio;ii. vaporizing the quantity of catalyst material and the quantity of carrier by the plasma gun, thereby forming a vapor cloud;iii. quenching the vapor cloud received from the plasma gun, thereby forming precipitate nanoparticles; andiv. injecting a co-reactant into a substantially low oxygen environment such that the co-reactant will react with one of the vapor cloud, the precipitate nanoparticles, and any combination thereof,wherein at least some of the nanoparticles comprise a first portion comprising a catalyst material bonded to a second portion comprising a carrier, wherein the carrier comprises an oxide;b. providing a quantity of supports comprising a same oxide as in the carrier loaded in the plasma gun;c. combining the supports with the nanoparticles; andd. forming a structure having the catalyst material bonded with the carrier, wherein the carrier is bonded with the support through an oxide-oxide bond.
  • 2. The metal compound catalyst of claim 1 wherein the supports comprise pores and voids.
  • 3. The metal compound catalyst of claim 1 wherein the quantity of catalyst material comprises at least one metal, at least one metal alloy, or any combination thereof.
  • 4. The metal compound catalyst of claim 1 wherein the quantity of catalyst material comprises nitrogen, carbon, phosphorous, hydrogen, oxygen, sulphur, or any combination thereof.
  • 5. The metal compound catalyst of claim 1 wherein the co-reactant comprises a carbon compound, a nitrogen compound, a phosphorus compound, an oxygen compound, a hydrogen compound, a sulfur compound, or any combination thereof.
  • 6. The metal compound catalyst of claim 1 wherein the carrier loaded into the plasma gun comprises silica, alumina, yttria, zirconia, titania, ceria, baria, or any combination thereof.
  • 7. The metal compound catalyst of claim 1 wherein combining the supports with the nanoparticles comprises: a. suspending the nanoparticles in a solution, thereby forming a suspension; andb. mixing the suspension with the quantity of supports.
  • 8. The metal compound catalyst of claim 1 wherein combining the supports with the nanoparticles comprises: a. suspending the nanoparticles in a solution, thereby forming a suspension; andb. mixing the suspension with a slurry having supports suspended therein.
  • 9. The metal compound catalyst of claim 8 wherein the slurry comprises an organic solvent, an aqueous solvent, or a combination thereof.
  • 10. The metal compound catalyst of claim 7 wherein the supports are dry porous supports.
  • 11. The metal compound catalyst of claim 8 wherein the supports are macroscopic support particles.
  • 12. The metal compound catalyst of claim 1 further comprising drying the supports.
  • 13. The metal compound catalyst of claim 1 further comprising exposing the supports to any one of heat, pressure or a combination thereof, thereby calcining the nanoparticles onto the supports.
  • 14. The metal compound catalyst of claim 1, wherein the nanoparticles are bonded to the supports.
  • 15. A supported metal compound catalyst prepared by a method comprising: a. providing a quantity of nanoparticles for combining with a quantity of supports, comprising the steps: i. loading a quantity of catalyst material in powder form into a plasma gun and loading a quantity of a carrier comprising an oxide into the plasma gun in a desired ratio, wherein the catalyst comprises a metal;ii. vaporizing the quantity of catalyst material and vaporizing the quantity of carrier using the plasma gun, thereby forming a vapor cloud;iii. receiving the vapor cloud from the plasma gun by a quench chamber;iv. quenching the vapor cloud received from the plasma gun, thereby forming a quantity of precipitate nanoparticles;v. injecting a co-reactant into a substantially low oxygen environment such that the co-reactant will react with one of the vapor cloud, the precipitate nanoparticles, and any combination thereof;wherein at least some of the nanoparticles comprise a first portion comprising a catalyst material bonded to a second portion comprising a carrier; andb. impregnating the at least some of the nanoparticles into a quantity of dry porous supports comprising a porous oxide, wherein the porous oxide comprises a same oxide as the carrier loaded in the plasma gun, comprising the steps: i. combining the at least some of the nanoparticles with a liquid dispersant to form a dispersion;ii. combining the dispersion with the quantity of dry porous supports to create a mixture;iii. subjecting the mixture to one of agitating, heating, and applying pressure;iv. allowing the mixture to dry, thereby creating impregnated supports;v. calcining the impregnated supports by exposing them to one of heat and pressure;thereby making a supported metal compound catalyst having a structure in which the support is bonded with the carrier through an oxide-oxide bond and the carrier is bonded with the catalyst material.
  • 16. A supported metal compound catalyst prepared by a method comprising: a. providing a quantity of nanoparticles for combining with a quantity of supports, comprising the steps: i. loading a quantity of catalyst material comprising a metal into a plasma gun and loading a quantity of a carrier comprising an oxide in powder form into the plasma gun in a desired ratio, wherein the carrier comprises an oxide;ii. vaporizing the quantity of catalyst material and vaporizing the quantity of carrier using the plasma gun, thereby forming a vapor cloud;iii. receiving the vapor cloud from the plasma gun by a quench chamber;iv. quenching the vapor cloud received from the plasma gun, thereby forming a quantity of precipitate nanoparticles;v. injecting a co-reactant into a substantially low oxygen environment such that the co-reactant will react with one of the vapor cloud, the precipitate nanoparticles, and any combination thereof;wherein at least some of the nanoparticles comprise a first portion comprising a catalyst material bonded to a second portion comprising a carrier; andb. impregnating the at least some of the nanoparticles into a quantity of macroscopic support particles comprising a same oxide as in the carrier loaded in the plasma gun, comprising the steps: i. combining the at least some of the nanoparticles with a liquid dispersant to form a dispersion;ii. combining a quantity of macroscopic support particles with a selected liquid to create a slurry, wherein the selected liquid comprises one of water, alcohol, organic liquid, and inorganic liquid, and wherein the selected liquid does not react with the macroscopic supports and does not react with the at least some of the nanoparticles;iii. combining the dispersion with the slurry to create a mixture;iv. subjecting the mixture to one of agitating, heating, and applying pressure;v. allowing the mixture to dry, thereby creating impregnated supports;vi. calcining the impregnated supports by exposing them to one of heat and pressure;thereby making a supported metal compound catalyst in which the support is bonded with the carrier through an oxide-oxide bond and the carrier is bonded with the catalyst material.
CROSS-REFERENCE TO RELATED APPLICATIONS

This patent application is a continuation application of U.S. patent application Ser. No. 12/001,602, filed Dec. 11, 2007, which claims priority benefit of U.S. Provisional Patent Application, Ser. No. 60/999,057, filed Oct. 15, 2007, which are hereby incorporated by reference in their entirety.

US Referenced Citations (549)
Number Name Date Kind
2021936 Johnstone Nov 1935 A
2284554 Beyerstedt May 1942 A
2419042 Todd Apr 1947 A
2519531 Worn Aug 1950 A
2562753 Trost Jul 1951 A
2689780 Rice Sep 1954 A
3001402 Koblin Sep 1961 A
3042511 Reding, Jr. Jul 1962 A
3067025 Chisholm Dec 1962 A
3145287 Siebein et al. Aug 1964 A
3178121 Wallace, Jr. Apr 1965 A
3179782 Matvay Apr 1965 A
3181947 Vordahl May 1965 A
3235700 Mondain-Monval et al. Feb 1966 A
3313908 Unger et al. Apr 1967 A
3387110 Wendler et al. Jun 1968 A
3401465 Larwill Sep 1968 A
3450926 Kiernan Jun 1969 A
3457788 Miyajima Jul 1969 A
3520656 Yates et al. Jul 1970 A
3537513 Austin Nov 1970 A
3552653 Inoue Jan 1971 A
3617358 Dittrich Nov 1971 A
3667111 Chartet Jun 1972 A
3741001 Fletcher et al. Jun 1973 A
3752172 Cohen et al. Aug 1973 A
3761360 Auvil et al. Sep 1973 A
3774442 Gustaysson Nov 1973 A
3804034 Stiglich, Jr. Apr 1974 A
3830756 Sanchez et al. Aug 1974 A
3857744 Moss Dec 1974 A
3871448 Vann et al. Mar 1975 A
3892882 Guest et al. Jul 1975 A
3914573 Muehlberger Oct 1975 A
3959094 Steinberg May 1976 A
3959420 Geddes et al. May 1976 A
3969482 Teller Jul 1976 A
4008620 Narato et al. Feb 1977 A
4018388 Andrews Apr 1977 A
4021021 Hall et al. May 1977 A
4127760 Meyer et al. Nov 1978 A
4139497 Castor et al. Feb 1979 A
4146654 Guyonnet Mar 1979 A
4157316 Thompson et al. Jun 1979 A
4171288 Keith et al. Oct 1979 A
4174298 Antos Nov 1979 A
4189925 Long Feb 1980 A
4227928 Wang Oct 1980 A
4248387 Andrews Feb 1981 A
4253917 Wang Mar 1981 A
4260649 Dension et al. Apr 1981 A
4284609 deVries Aug 1981 A
4315874 Ushida et al. Feb 1982 A
4326492 Leibrand, Sr. et al. Apr 1982 A
4344779 Isserlis Aug 1982 A
4369167 Weir Jan 1983 A
4388274 Rourke et al. Jun 1983 A
4419331 Montalvo Dec 1983 A
4431750 McGinnis et al. Feb 1984 A
4436075 Campbell et al. Mar 1984 A
4440733 Lawson et al. Apr 1984 A
4458138 Adrian et al. Jul 1984 A
4459327 Wang Jul 1984 A
4505945 Dubust et al. Mar 1985 A
4506136 Smyth et al. Mar 1985 A
4513149 Gray et al. Apr 1985 A
4523981 Ang et al. Jun 1985 A
4545872 Sammells et al. Oct 1985 A
RE32244 Andersen Sep 1986 E
4609441 Frese, Jr. et al. Sep 1986 A
4610857 Ogawa et al. Sep 1986 A
4616779 Serrano et al. Oct 1986 A
4723589 Iyer et al. Feb 1988 A
4731517 Cheney Mar 1988 A
4751021 Mollon et al. Jun 1988 A
4764283 Ashbrook et al. Aug 1988 A
4765805 Wahl et al. Aug 1988 A
4780591 Bernecki et al. Oct 1988 A
4824624 Palicka et al. Apr 1989 A
4836084 Vogelesang et al. Jun 1989 A
4855505 Koll Aug 1989 A
4866240 Webber Sep 1989 A
4877937 Müller Oct 1989 A
4885038 Anderson et al. Dec 1989 A
4921586 Molter May 1990 A
4970364 Müller Nov 1990 A
4982050 Gammie et al. Jan 1991 A
4983555 Roy et al. Jan 1991 A
4987033 Abkowitz et al. Jan 1991 A
5006163 Benn et al. Apr 1991 A
5015863 Takeshima et al. May 1991 A
5041713 Weidman Aug 1991 A
5043548 Whitney et al. Aug 1991 A
5070064 Hsu et al. Dec 1991 A
5073193 Chaklader et al. Dec 1991 A
5133190 Abdelmalek Jul 1992 A
5151296 Tokunaga Sep 1992 A
5157007 Domesle et al. Oct 1992 A
5187140 Thorsteinson et al. Feb 1993 A
5192130 Endo et al. Mar 1993 A
5217746 Lenling et al. Jun 1993 A
5225656 Frind Jul 1993 A
5230844 Macaire et al. Jul 1993 A
5233153 Coats Aug 1993 A
5269848 Nakagawa Dec 1993 A
5294242 Zurecki et al. Mar 1994 A
5330945 Beckmeyer et al. Jul 1994 A
5338716 Triplett et al. Aug 1994 A
5369241 Taylor et al. Nov 1994 A
5371049 Moffett et al. Dec 1994 A
5372629 Anderson et al. Dec 1994 A
5392797 Welch Feb 1995 A
5436080 Inoue et al. Jul 1995 A
5439865 Abe et al. Aug 1995 A
5442153 Marantz et al. Aug 1995 A
5452854 Keller Sep 1995 A
5460701 Parker et al. Oct 1995 A
5464458 Yamamoto Nov 1995 A
5485941 Guyomard et al. Jan 1996 A
5486675 Taylor et al. Jan 1996 A
5489449 Umeya et al. Feb 1996 A
5534149 Birkenbeil et al. Jul 1996 A
5534270 De Castro Jul 1996 A
5543173 Horn, Jr. et al. Aug 1996 A
5553507 Basch et al. Sep 1996 A
5558771 Hagen et al. Sep 1996 A
5562966 Clarke et al. Oct 1996 A
5582807 Liao et al. Dec 1996 A
5596973 Grice Jan 1997 A
5611896 Swanepoel et al. Mar 1997 A
5630322 Heilmann et al. May 1997 A
5652304 Calderon et al. Jul 1997 A
5714644 Irgang et al. Feb 1998 A
5723027 Serole Mar 1998 A
5723187 Popoola et al. Mar 1998 A
5726414 Kitahashi et al. Mar 1998 A
5733662 Bogachek Mar 1998 A
5749938 Coombs May 1998 A
5776359 Schultz et al. Jul 1998 A
5788738 Pirzada et al. Aug 1998 A
5804155 Farrauto et al. Sep 1998 A
5811187 Anderson et al. Sep 1998 A
5837959 Muehlberger et al. Nov 1998 A
5851507 Pirzada et al. Dec 1998 A
5853815 Muehlberger Dec 1998 A
5858470 Bernecki et al. Jan 1999 A
5884473 Noda et al. Mar 1999 A
5905000 Yadav et al. May 1999 A
5928806 Olah et al. Jul 1999 A
5935293 Detering et al. Aug 1999 A
5973289 Read et al. Oct 1999 A
5989648 Phillips Nov 1999 A
5993967 Brotzman, Jr. et al. Nov 1999 A
5993988 Ohara et al. Nov 1999 A
6004620 Camm Dec 1999 A
6012647 Ruta et al. Jan 2000 A
6033781 Brotzman, Jr. et al. Mar 2000 A
6045765 Nakatsuji et al. Apr 2000 A
6059853 Coombs May 2000 A
6066587 Kurokawa et al. May 2000 A
6084197 Fusaro, Jr. Jul 2000 A
6093306 Hanrahan et al. Jul 2000 A
6093378 Deeba et al. Jul 2000 A
6102106 Manning et al. Aug 2000 A
6117376 Merkel Sep 2000 A
6140539 Sander et al. Oct 2000 A
6168694 Huang et al. Jan 2001 B1
6190627 Hoke et al. Feb 2001 B1
6213049 Yang Apr 2001 B1
6214195 Yadav et al. Apr 2001 B1
6228904 Yadav et al. May 2001 B1
6254940 Pratsinis et al. Jul 2001 B1
6261484 Phillips et al. Jul 2001 B1
6267864 Yadav et al. Jul 2001 B1
6322756 Arno et al. Nov 2001 B1
6342465 Klein et al. Jan 2002 B1
6344271 Yadav et al. Feb 2002 B1
6362449 Hadidi et al. Mar 2002 B1
6379419 Celik et al. Apr 2002 B1
6387560 Yadav et al. May 2002 B1
6395214 Kear et al. May 2002 B1
6398843 Tarrant Jun 2002 B1
6399030 Nolan Jun 2002 B1
6409851 Sethuram et al. Jun 2002 B1
6413781 Geis et al. Jul 2002 B1
6416818 Aikens et al. Jul 2002 B1
RE37853 Detering et al. Sep 2002 E
6444009 Liu et al. Sep 2002 B1
6475951 Domesle et al. Nov 2002 B1
6488904 Cox et al. Dec 2002 B1
6491423 Skibo et al. Dec 2002 B1
6506995 Fusaro, Jr. et al. Jan 2003 B1
6517800 Cheng et al. Feb 2003 B1
6524662 Jang et al. Feb 2003 B2
6531704 Yadav et al. Mar 2003 B2
6548445 Buysch et al. Apr 2003 B1
6554609 Yadav et al. Apr 2003 B2
6562304 Mizrahi May 2003 B1
6562495 Yadav et al. May 2003 B2
6569393 Hoke et al. May 2003 B1
6569397 Yadav et al. May 2003 B1
6569518 Yadav et al. May 2003 B2
6572672 Yadav et al. Jun 2003 B2
6579446 Teran et al. Jun 2003 B1
6596187 Coll et al. Jul 2003 B2
6603038 Hagemeyer et al. Aug 2003 B1
6607821 Yadav et al. Aug 2003 B2
6610355 Yadav et al. Aug 2003 B2
6623559 Huang Sep 2003 B2
6635357 Moxson et al. Oct 2003 B2
6641775 Vigliotti et al. Nov 2003 B2
6652822 Phillips et al. Nov 2003 B2
6652967 Yadav et al. Nov 2003 B2
6669823 Sarkas et al. Dec 2003 B1
6682002 Kyotani Jan 2004 B2
6689192 Phillips et al. Feb 2004 B1
6699398 Kim Mar 2004 B1
6706097 Zomes Mar 2004 B2
6706660 Park Mar 2004 B2
6710207 Bogan, Jr. et al. Mar 2004 B2
6713176 Yadav et al. Mar 2004 B2
6716525 Yadav et al. Apr 2004 B1
6744006 Johnson et al. Jun 2004 B2
6746791 Yadav et al. Jun 2004 B2
6772584 Chun et al. Aug 2004 B2
6786950 Yadav et al. Sep 2004 B2
6813931 Yadav et al. Nov 2004 B2
6817388 Tsangaris et al. Nov 2004 B2
6832735 Yadav et al. Dec 2004 B2
6838072 Kong et al. Jan 2005 B1
6841509 Hwang et al. Jan 2005 B1
6855410 Buckley Feb 2005 B2
6855426 Yadav Feb 2005 B2
6855749 Yadav et al. Feb 2005 B1
6858170 Van Thillo et al. Feb 2005 B2
6886545 Holm May 2005 B1
6891319 Dean et al. May 2005 B2
6896958 Cayton et al. May 2005 B1
6902699 Fritzemeier et al. Jun 2005 B2
6916872 Yadav et al. Jul 2005 B2
6919065 Zhou et al. Jul 2005 B2
6919527 Boulos et al. Jul 2005 B2
6933331 Yadav et al. Aug 2005 B2
6972115 Ballard Dec 2005 B1
6986877 Takikawa et al. Jan 2006 B2
6994837 Boulos et al. Feb 2006 B2
7007872 Yadav et al. Mar 2006 B2
7022305 Drumm et al. Apr 2006 B2
7052777 Brotzman, Jr. et al. May 2006 B2
7073559 O'Larey et al. Jul 2006 B2
7074364 Jähn et al. Jul 2006 B2
7081267 Yadav Jul 2006 B2
7101819 Rosenflanz et al. Sep 2006 B2
7147544 Rosenflanz Dec 2006 B2
7147894 Zhou et al. Dec 2006 B2
7166198 Van Der Walt et al. Jan 2007 B2
7166663 Cayton et al. Jan 2007 B2
7172649 Conrad et al. Feb 2007 B2
7172790 Koulik et al. Feb 2007 B2
7178747 Yadav et al. Feb 2007 B2
7208126 Musick et al. Apr 2007 B2
7211236 Stark et al. May 2007 B2
7217407 Zhang May 2007 B2
7220398 Sutorik et al. May 2007 B2
7255498 Bush et al. Aug 2007 B2
7265076 Taguchi et al. Sep 2007 B2
7282167 Carpenter Oct 2007 B2
7307195 Polverejan et al. Dec 2007 B2
7323655 Kim Jan 2008 B2
7384447 Kodas et al. Jun 2008 B2
7402899 Whiting et al. Jul 2008 B1
7417008 Richards et al. Aug 2008 B2
7494527 Jurewicz et al. Feb 2009 B2
7507495 Wang et al. Mar 2009 B2
7517826 Fujdala et al. Apr 2009 B2
7534738 Fujdala et al. May 2009 B2
7541012 Yeung et al. Jun 2009 B2
7541310 Espinoza et al. Jun 2009 B2
7557324 Nylen et al. Jul 2009 B2
7572315 Boulos et al. Aug 2009 B2
7576029 Saito et al. Aug 2009 B2
7576031 Beutel et al. Aug 2009 B2
7604843 Robinson et al. Oct 2009 B1
7611686 Alekseeva et al. Nov 2009 B2
7615097 McKechnie et al. Nov 2009 B2
7618919 Shimazu et al. Nov 2009 B2
7622693 Foret Nov 2009 B2
7632775 Zhou et al. Dec 2009 B2
7635218 Lott Dec 2009 B1
7674744 Shiratori et al. Mar 2010 B2
7678419 Kevwitch et al. Mar 2010 B2
7704369 Olah et al. Apr 2010 B2
7709411 Zhou et al. May 2010 B2
7709414 Fujdala et al. May 2010 B2
7745367 Fujdala et al. Jun 2010 B2
7750265 Belashchenko et al. Jul 2010 B2
7759279 Shiratori et al. Jul 2010 B2
7759281 Kezuka et al. Jul 2010 B2
7803210 Sekine et al. Sep 2010 B2
7842515 Zou et al. Nov 2010 B2
7851405 Wakamatsu et al. Dec 2010 B2
7874239 Howland Jan 2011 B2
7875573 Beutel et al. Jan 2011 B2
7897127 Layman et al. Mar 2011 B2
7902104 Kalck Mar 2011 B2
7905942 Layman Mar 2011 B1
7935655 Tolmachev May 2011 B2
8003020 Jankowiak et al. Aug 2011 B2
8051724 Layman et al. Nov 2011 B1
8076258 Biberger Dec 2011 B1
8080494 Yasuda et al. Dec 2011 B2
8089495 Keller Jan 2012 B2
8129654 Lee et al. Mar 2012 B2
8142619 Layman et al. Mar 2012 B2
8168561 Virkar May 2012 B2
8173572 Feaviour May 2012 B2
8211392 Grubert et al. Jul 2012 B2
8258070 Fujdala et al. Sep 2012 B2
8278240 Tange et al. Oct 2012 B2
8294060 Mohanty et al. Oct 2012 B2
8309489 Cuenya et al. Nov 2012 B2
8349761 Xia et al. Jan 2013 B2
8404611 Nakamura et al. Mar 2013 B2
8524631 Biberger Sep 2013 B2
8557727 Yin et al. Oct 2013 B2
8574408 Layman Nov 2013 B2
8574520 Koplin et al. Nov 2013 B2
8652992 Yin et al. Feb 2014 B2
8669202 van den Hoek et al. Mar 2014 B2
8679433 Yin et al. Mar 2014 B2
20010004009 MacKelvie Jun 2001 A1
20010042802 Youds Nov 2001 A1
20010055554 Hoke et al. Dec 2001 A1
20020018815 Sievers et al. Feb 2002 A1
20020068026 Murrell et al. Jun 2002 A1
20020071800 Hoke et al. Jun 2002 A1
20020079620 DuBuis et al. Jun 2002 A1
20020100751 Carr Aug 2002 A1
20020102674 Anderson Aug 2002 A1
20020131914 Sung Sep 2002 A1
20020143417 Ito et al. Oct 2002 A1
20020168466 Tapphorn et al. Nov 2002 A1
20020182735 Kibby et al. Dec 2002 A1
20020183191 Faber et al. Dec 2002 A1
20020192129 Shamouilian et al. Dec 2002 A1
20030036786 Duren et al. Feb 2003 A1
20030042232 Shimazu Mar 2003 A1
20030047617 Shanmugham et al. Mar 2003 A1
20030066800 Saim et al. Apr 2003 A1
20030085663 Horsky May 2003 A1
20030102099 Yadav et al. Jun 2003 A1
20030108459 Wu et al. Jun 2003 A1
20030110931 Aghajanian et al. Jun 2003 A1
20030129098 Endo et al. Jul 2003 A1
20030139288 Cai et al. Jul 2003 A1
20030143153 Boulos et al. Jul 2003 A1
20030172772 Sethuram et al. Sep 2003 A1
20030223546 McGregor et al. Dec 2003 A1
20040009118 Phillips et al. Jan 2004 A1
20040023302 Archibald et al. Feb 2004 A1
20040023453 Xu et al. Feb 2004 A1
20040077494 LaBarge et al. Apr 2004 A1
20040103751 Joseph et al. Jun 2004 A1
20040109523 Singh et al. Jun 2004 A1
20040119064 Narayan et al. Jun 2004 A1
20040127586 Jin et al. Jul 2004 A1
20040129222 Nylen et al. Jul 2004 A1
20040166036 Chen et al. Aug 2004 A1
20040167009 Kuntz et al. Aug 2004 A1
20040176246 Shirk et al. Sep 2004 A1
20040208805 Fincke et al. Oct 2004 A1
20040213998 Hearley et al. Oct 2004 A1
20040235657 Xiao et al. Nov 2004 A1
20040238345 Koulik et al. Dec 2004 A1
20040251017 Pillion et al. Dec 2004 A1
20040251241 Blutke et al. Dec 2004 A1
20050000321 O'Larey et al. Jan 2005 A1
20050000950 Schroder et al. Jan 2005 A1
20050058797 Sen et al. Mar 2005 A1
20050066805 Park et al. Mar 2005 A1
20050070431 Alvin et al. Mar 2005 A1
20050077034 King Apr 2005 A1
20050097988 Kodas et al. May 2005 A1
20050106865 Chung et al. May 2005 A1
20050133121 Subramanian et al. Jun 2005 A1
20050153069 Tapphorn et al. Jul 2005 A1
20050163673 Johnson et al. Jul 2005 A1
20050199739 Kuroda et al. Sep 2005 A1
20050211018 Jurewicz et al. Sep 2005 A1
20050220695 Abatzoglou et al. Oct 2005 A1
20050227864 Sutorik et al. Oct 2005 A1
20050233380 Pesiri et al. Oct 2005 A1
20050240069 Polverejan et al. Oct 2005 A1
20050258766 Kim Nov 2005 A1
20050274646 Lawson et al. Dec 2005 A1
20050275143 Toth Dec 2005 A1
20060043651 Yamamoto et al. Mar 2006 A1
20060051505 Kortshagen et al. Mar 2006 A1
20060068989 Ninomiya et al. Mar 2006 A1
20060094595 Labarge May 2006 A1
20060096393 Pesiri May 2006 A1
20060105910 Zhou et al. May 2006 A1
20060108332 Belashchenko May 2006 A1
20060153728 Schoenung et al. Jul 2006 A1
20060153765 Pham-Huu et al. Jul 2006 A1
20060159596 De La Veaux et al. Jul 2006 A1
20060166809 Malek et al. Jul 2006 A1
20060211569 Dang et al. Sep 2006 A1
20060213326 Gollob et al. Sep 2006 A1
20060222780 Gurevich et al. Oct 2006 A1
20060231525 Asakawa et al. Oct 2006 A1
20070020167 Han et al. Jan 2007 A1
20070044513 Kear et al. Mar 2007 A1
20070048206 Hung et al. Mar 2007 A1
20070049484 Kear et al. Mar 2007 A1
20070063364 Hsiao et al. Mar 2007 A1
20070084308 Nakamura et al. Apr 2007 A1
20070084834 Hanus et al. Apr 2007 A1
20070087934 Martens et al. Apr 2007 A1
20070092768 Lee et al. Apr 2007 A1
20070153390 Nakamura et al. Jul 2007 A1
20070161506 Saito et al. Jul 2007 A1
20070163385 Takahashi et al. Jul 2007 A1
20070172721 Pak et al. Jul 2007 A1
20070173403 Koike et al. Jul 2007 A1
20070178673 Gole et al. Aug 2007 A1
20070221404 Das et al. Sep 2007 A1
20070253874 Foret Nov 2007 A1
20070266825 Ripley et al. Nov 2007 A1
20070292321 Plischke et al. Dec 2007 A1
20080006954 Yubuta et al. Jan 2008 A1
20080026041 Tepper et al. Jan 2008 A1
20080031806 Gavenonis et al. Feb 2008 A1
20080038578 Li Feb 2008 A1
20080045405 Beutel et al. Feb 2008 A1
20080047261 Han et al. Feb 2008 A1
20080057212 Dorier et al. Mar 2008 A1
20080064769 Sato et al. Mar 2008 A1
20080104735 Howland May 2008 A1
20080105083 Nakamura et al. May 2008 A1
20080116178 Weidman May 2008 A1
20080125308 Fujdala et al. May 2008 A1
20080125313 Fujdala et al. May 2008 A1
20080138651 Doi et al. Jun 2008 A1
20080175936 Tokita et al. Jul 2008 A1
20080187714 Wakamatsu et al. Aug 2008 A1
20080206562 Stucky et al. Aug 2008 A1
20080207858 Kowaleski et al. Aug 2008 A1
20080248704 Mathis et al. Oct 2008 A1
20080274344 Veith et al. Nov 2008 A1
20080277092 Layman et al. Nov 2008 A1
20080277264 Sprague Nov 2008 A1
20080277266 Layman et al. Nov 2008 A1
20080277267 Biberger et al. Nov 2008 A1
20080277268 Layman Nov 2008 A1
20080277269 Layman et al. Nov 2008 A1
20080277270 Biberger et al. Nov 2008 A1
20080277271 Layman Nov 2008 A1
20080280049 Kevwitch et al. Nov 2008 A1
20080280751 Harutyunyan et al. Nov 2008 A1
20080280756 Biberger Nov 2008 A1
20080283411 Eastman et al. Nov 2008 A1
20080283498 Yamazaki Nov 2008 A1
20080307960 Hendrickson et al. Dec 2008 A1
20090010801 Murphy et al. Jan 2009 A1
20090018008 Jankowiak et al. Jan 2009 A1
20090054230 Veeraraghavan et al. Feb 2009 A1
20090081092 Yang et al. Mar 2009 A1
20090088585 Schammel et al. Apr 2009 A1
20090092887 McGrath et al. Apr 2009 A1
20090098402 Kang et al. Apr 2009 A1
20090114568 Trevino et al. May 2009 A1
20090162991 Beneyton et al. Jun 2009 A1
20090168506 Han et al. Jul 2009 A1
20090170242 Lin et al. Jul 2009 A1
20090181474 Nagai Jul 2009 A1
20090200180 Capote et al. Aug 2009 A1
20090208367 Calio et al. Aug 2009 A1
20090209408 Kitamura et al. Aug 2009 A1
20090223410 Jun et al. Sep 2009 A1
20090253037 Park et al. Oct 2009 A1
20090274897 Kaner et al. Nov 2009 A1
20090274903 Addiego Nov 2009 A1
20090286899 Hofmann et al. Nov 2009 A1
20090320449 Beutel et al. Dec 2009 A1
20090324468 Golden et al. Dec 2009 A1
20100050868 Kuznicki et al. Mar 2010 A1
20100089002 Merkel Apr 2010 A1
20100092358 Koegel et al. Apr 2010 A1
20100124514 Chelluri et al. May 2010 A1
20100166629 Deeba Jul 2010 A1
20100180581 Grubert et al. Jul 2010 A1
20100180582 Mueller-Stach et al. Jul 2010 A1
20100186375 Kazi et al. Jul 2010 A1
20100240525 Golden et al. Sep 2010 A1
20100275781 Tsangaris Nov 2010 A1
20100323118 Mohanty et al. Dec 2010 A1
20110006463 Layman Jan 2011 A1
20110030346 Neubauer et al. Feb 2011 A1
20110049045 Hurt et al. Mar 2011 A1
20110052467 Chase et al. Mar 2011 A1
20110143041 Layman et al. Jun 2011 A1
20110143915 Yin et al. Jun 2011 A1
20110143916 Leamon Jun 2011 A1
20110143926 Yin et al. Jun 2011 A1
20110143930 Yin et al. Jun 2011 A1
20110143933 Yin et al. Jun 2011 A1
20110144382 Yin et al. Jun 2011 A1
20110152550 Grey et al. Jun 2011 A1
20110158871 Arnold et al. Jun 2011 A1
20110174604 Duesel et al. Jul 2011 A1
20110243808 Fossey et al. Oct 2011 A1
20110245073 Oljaca et al. Oct 2011 A1
20110247336 Farsad et al. Oct 2011 A9
20110305612 Müller-Stach et al. Dec 2011 A1
20120023909 Lambert et al. Feb 2012 A1
20120045373 Biberger Feb 2012 A1
20120063963 Watanabe et al. Mar 2012 A1
20120097033 Arnold et al. Apr 2012 A1
20120122660 Andersen et al. May 2012 A1
20120124974 Li et al. May 2012 A1
20120171098 Hung et al. Jul 2012 A1
20120214666 van den Hoek et al. Aug 2012 A1
20120263633 Koplin et al. Oct 2012 A1
20120308467 Carpenter et al. Dec 2012 A1
20120313269 Kear et al. Dec 2012 A1
20130034472 Cantrell et al. Feb 2013 A1
20130079216 Biberger et al. Mar 2013 A1
20130125970 Ko et al. May 2013 A1
20130213018 Yin et al. Aug 2013 A1
20130280528 Biberger Oct 2013 A1
20130281288 Biberger et al. Oct 2013 A1
20130294989 Koch et al. Nov 2013 A1
20130316896 Biberger Nov 2013 A1
20130331257 Barcikowski et al. Dec 2013 A1
20140018230 Yin et al. Jan 2014 A1
20140120355 Biberger May 2014 A1
20140128245 Yin et al. May 2014 A1
20140140909 Qi et al. May 2014 A1
20140148331 Biberger et al. May 2014 A1
20140161693 Brown et al. Jun 2014 A1
20140209451 Biberger et al. Jul 2014 A1
20140228201 Mendoza Gómez et al. Aug 2014 A1
20140243187 Yin et al. Aug 2014 A1
20140249021 van den Hoek et al. Sep 2014 A1
20140252270 Lehman, Jr. Sep 2014 A1
20140263190 Biberger et al. Sep 2014 A1
20140318318 Layman et al. Oct 2014 A1
20140338519 Biberger Nov 2014 A1
Foreign Referenced Citations (82)
Number Date Country
101301610 Nov 2008 CN
34 45 273 Jun 1986 DE
0 347 386 Dec 1989 EP
0 385 742 Sep 1990 EP
1 134 302 Sep 2001 EP
1 256 378 Nov 2002 EP
1 619 168 Jan 2006 EP
1 790 612 May 2007 EP
1 955 765 Aug 2008 EP
1 307 941 Feb 1973 GB
49-31571 Mar 1974 JP
56-146804 Nov 1981 JP
61-086815 May 1986 JP
62-102827 May 1987 JP
63-214342 Sep 1988 JP
1-164795 Jun 1989 JP
2-6339 Jan 1990 JP
3-226509 Oct 1991 JP
5-193909 Aug 1993 JP
05-228361 Sep 1993 JP
05-324094 Dec 1993 JP
6-93309 Apr 1994 JP
6-135797 May 1994 JP
6-172820 Jun 1994 JP
6-272012 Sep 1994 JP
H6-065772 Sep 1994 JP
07-031873 Feb 1995 JP
7-138020 May 1995 JP
7-207381 Aug 1995 JP
07-256116 Oct 1995 JP
8-158033 Jun 1996 JP
8-215576 Aug 1996 JP
8-217420 Aug 1996 JP
9-141087 Jun 1997 JP
10-130810 May 1998 JP
10-249198 Sep 1998 JP
11-502760 Mar 1999 JP
11-300198 Nov 1999 JP
2000-220978 Aug 2000 JP
2002-88486 Mar 2002 JP
2002-241812 Aug 2002 JP
2002-336688 Nov 2002 JP
2003-126694 May 2003 JP
2004-233007 Aug 2004 JP
2004-249206 Sep 2004 JP
2004-290730 Oct 2004 JP
2005-503250 Feb 2005 JP
2005-122621 May 2005 JP
2005-218937 Aug 2005 JP
2005-342615 Dec 2005 JP
2006-001779 Jan 2006 JP
2006-508885 Mar 2006 JP
2006-87965 Apr 2006 JP
2006-247446 Sep 2006 JP
2006-260385 Sep 2006 JP
2006-326554 Dec 2006 JP
2007-29859 Feb 2007 JP
2007-44585 Feb 2007 JP
2007-46162 Feb 2007 JP
2007-138287 Jun 2007 JP
2007-203129 Aug 2007 JP
493241 Mar 1976 SU
200611449 Apr 2006 TW
201023207 Jun 2010 TW
WO-9628577 Sep 1996 WO
WO-0072965 Dec 2000 WO
WO-02092503 Nov 2002 WO
WO-03094195 Nov 2003 WO
WO-2004052778 Jun 2004 WO
WO-2005063390 Jul 2005 WO
WO 2006079213 Aug 2006 WO
WO-2006096205 Sep 2006 WO
WO-2007144447 Dec 2007 WO
WO-2008092478 Aug 2008 WO
WO-2008130451 Oct 2008 WO
WO-2008130451 Oct 2008 WO
WO-2009017479 Feb 2009 WO
WO-2011081833 Jul 2011 WO
WO-2012028695 Mar 2012 WO
WO-2013028575 Feb 2013 WO
WO-2013093597 Jun 2013 WO
WO-2013151557 Oct 2013 WO
Non-Patent Literature Citations (107)
Entry
Chaim, R. et al. (2009). “Densification of Nanocrystalline Y2O3 Ceramic Powder by Spark Plasma Sintering,” Journal of European Ceramic Society 29: 91-98.
Viswanathan, V. et al. (2006). “Challenges and Advances in Nanocomposite Processing Techniques,” Materials Science and Engineering R 54: 121-285.
Babin, A. et al. (1985). “Solvents Used in the Arts,” Center for Safety in the Arts: 16 pages.
Bateman, J. E. et al. (Dec. 17, 1998). “Alkylation of Porous Silicon by Direct Reaction with Alkenes and Alkynes,” Angew. Chem Int. Ed. 37(19):2683-2685.
Carrot, G. et al. (Sep. 17, 2002). “Surface-Initiated Ring-Opening Polymerization: A Versatile Method for Nanoparticle Ordering,” Macromolecules 35(22):8400-8404.
Chen, H.-S. et al. (Jul. 3, 2001). “On the Photoluminescence of Si Nanoparticles,” Mater. Phys. Mech. 4:62-66.
Chen, W.-J. et al. (Mar. 18, 2008). “Functional Fe3O4/TiO2 Core/Shell Magnetic Nanoparticles as Photokilling Agents for Pathogenic Bacteria,” Small 4(4): 485-491.
Faber, K. T. et al. (Sep. 1988). “Toughening by Stress-Induced Microcracking in Two-Phase Ceramics,” Journal of the American Ceramic Society 71: C-399-C401.
Fauchais, P. et al. (Jun. 1989). “La Projection Par Plasma: Une Revue,” Ann. Phys. Fr. 14(3):261-310.
Fauchais, P. et al. (Jan. 1993). “Les Dépôts Par Plasma Thermique,” Revue Générale De L'Electricité, RGE, Paris, France, No. 2, pp. 7-12 (in French).
Fauchais, P. et al. (Jan. 1996). “Plasma Spray: Study of the Coating Generation,” Ceramics International 22(4):295-303.
Fojtik, A. et al. (Apr. 29, 1994). “Luminescent Colloidal Silicon Particles,”Chemical Physics Letters 221 :363-367.
Fojtik, A. (Jan. 13, 2006). “Surface Chemistry of Luminescent Colloidal Silicon Nanoparticles,” J. Phys. Chem. B. 110(5):1994-1998.
Gangeri, M. et al. (2009). “Fe and Pt Carbon Nanotubes for the Electrocatalytic Conversion of Carbon Dioxide to Oxygenates,” Catalysis Today 143: 57-63.
Gutsch, A. et al. (2002). “Gas-Phase Production of Nanoparticles,” Kona No. 20, pp. 24-37.
Han, B. Q. et al. (Jan. 2004). “Deformation Mechanisms and Ductility of Nanostructured Al Alloys”, Mat. Res. Soc. Symp. Proc. 821:P9.1.1-P9.1.6.
Heberlein, J. (2002). “New Approaches in Thermal Plasma Technology”, Pure Appl. Chem. 74(3):327-335.
Hua, F. et al. (Mar. 2006). “Organically Capped Silicon Nanoparticles With Blue Photoluminescence Prepared by Hydrosilylation Followed by Oxidation,” Langmuir 22(9):4363-4370.
Ji, Y. et al. (Nov. 2002) “Processing and Mechanical Properties of Al2O3-5 vol.% Cr Nanocomposites,” Journal of the European Ceramic Society 22(12):1927-1936.
Jouet, R. J. et al. (Jan. 25, 2005). “Surface Passivation of Bare Aluminum Nanoparticles Using Perfluoroalkyl Carboxylic Acids,” Chem. Mater.17(11):2987-2996.
Kenvin, J. C. et al. (1992). “Supported Catalysts Prepared from Mononuclear Copper Complexes: Catalytic Properties”, J. Catalysis 135:81-91.
Konrad, H. et al. (1996). “Nanostructured Cu—Bi Alloys Prepared by Co-Evaporation in a Continuous Gas Flow,” NanoStructured Materials 7(6):605-610.
Kim, N. Y. et al. (Mar. 5, 1997). “Thermal Derivatization of Porous Silicon with Alcohols,” J. Am. Chem. Soc. 119(9):2297-2298.
Kwon, Y.-S. et al. (Apr. 30, 2003). “Passivation Process for Superfine Aluminum Powders Obtained by Electrical Explosion of Wires,” Applied Surface Science 211:57-67.
Langner, A. et al. (Aug. 25, 2005). “Controlled Silicon Surface Functionalization by Alkene Hydrosilylation,” J. Am. Chem. Soc. 127(37):12798-12799.
Li, D. et al. (Apr. 9, 2005). “Environmentally Responsive “Hairy” Nanoparticles: Mixed Homopolymer Brushes on Silica Nanoparticles Synthesized by Living Radical Polymerization Techniques,” J. Am. Chem. Soc. 127(7):6248-6256.
Li, X. et al. (May 25, 2004). “Surface Functionalization of Silicon Nanoparticles Produced by Laser-Driven Pyrolysis of Silane Followed by HF—HNO3 Etching,” Langmuir 20(11):4720-4727.
Liao, Y.-C. et al. (Jun. 27, 2006). “Self-Assembly of Organic Monolayers on Aerosolized Silicon Nanoparticles,” J.Am. Chem. Soc. 128(28):9061-9065.
Liu, S.-M. et al. (Jan. 13, 2006). “Enhanced Photoluminescence from Si Nano-Organosols by Functionalization With Alkenes and Their Size Evolution,” Chem. Mater. 18(3):637-642.
Luo, J. et al. (2008). “Core/Shell Nanoparticles as Electrocatalysts for Fuel Cell Reactions,” Advanced Materials 20: 4342-4347.
Mignard, D. et al. (2003). “Methanol Synthesis from Flue-Gas CO2 and Renewable Electricity: A Feasibility Study,” International Journal of Hydrogen Energy 28: 455-464.
Mühlenweg, H. et al. (2004). “Gas-Phase Reactions—Open Up New Roads to Nanoproducts,” Degussa ScienceNewsletter No. 08, pp. 12-16.
Nagai, Y. et al. (Jul. 3, 2006). “Sintering Inhibition Mechanism of Platinum Supported on Ceria-Based Oxide and Pt-Oxide-Support Interaction,” J. Catalysis 242:103-109.
Nasa (2009). “Enthalpy,” Article located at http://www.grc.nasa.gov/WWW/K-12/airplane/enthalpy.html, published by National Aeronautics and Space Administration on Nov. 23, 2009, 1 page.
Neiner, D. (Aug. 5, 2006). “Low-Temperature Solution Route to Macroscopic Amounts of Hydrogen Terminated Silicon Nanoparticles,” J. Am. Chem. Soc. 128:11016-11017.
Netzer, L. et al. (1983). “A New Approach to Construction of Artificial Monolayer Assemblies,” J. Am. Chem. Soc. 105(3):674-676.
Park, H.-Y. et al. (May 30, 2007). “Fabrication of Magnetic Core@Shell Fe Oxide@Au Nanoparticles for Interfacial Bioactivity and Bio-Separation,” Langmuir 23: 9050-9056.
Park, N.-G. et al. (Feb. 17, 2004). “Morphological and Photoelectrochemical Characterization of Core-Shell Nanoparticle Films for Dye-Sensitized Solar Cells: Zn—O Type Shell on SnO2 and TiO2 Cores,” Langmuir 20: 4246-4253.
“Plasma Spray and Wire Flame Spray Product Group,” located at http://www.processmaterials.com/spray.html, published by Process Materials, Inc., last accessed Aug. 5, 2013, 2 pages.
“Platinum Group Metals: Annual Review 1996” (Oct. 1997). Engineering and Mining Journal, p. 63.
Rahaman, R. A. et al. (1995). “Synthesis of Powders,” in Ceramic Processing and Sintering. Marcel Decker, Inc., New York, pp. 71-77.
Sailor, M. J. (1997). “Surface Chemistry of Luminescent Silicon Nanocrystallites,” Adv. Mater. 9(10):783-793.
Stiles, A. B. (Jan. 1, 1987). “Manufacture of Carbon-Supported Metal Catalysts,” in Catalyst Supports and Supported Catalysts, Butterworth Publishers, MA, pp. 125-132.
Subramanian, S. et al. (1991). “Structure and Activity of Composite Oxide Supported Platinum—Iridium Catalysts,” Applied Catalysts 74: 65-81.
Tao, Y.-T. (May 1993). “Structural Comparison of Self-Assembled Monolayers of n-Alkanoic Acids on the surfaces of Silver, Copper, and Aluminum,” J. Am. Chem. Soc. 115(10):4350-4358.
Ünal, N. et al. (Nov. 2011). “Influence of WC Particles on the Microstructural and Mechanical Properties of 3 mol% Y2O3 Stabilized ZrO2 Matrix Composites Produced by Hot Pressing,” Journal of the European Ceramic Society (31)13: 2267-2275.
Vardelle, A. et al. (1996). “Coating Generation: Vaporization of Particles in Plasma Spraying and Splat Formation,” Universite de Limoges, 123 Avenue A. Thomas 87000, Limoges, France, Pure & Appl. Chem. 68(5):1093-1099.
Vardelle, M. et al. (Jun. 1991). “Experimental Investigation of Powder Vaporization in Thermal Plasma Jets,” Plasma Chemistry and Plasma Processing 11(2):185-201.
Yoshida, T. (1994). “The Future of Thermal Plasma Processing for Coating”, Pure & Appl. Chem. 66(6):1223-1230.
Zou, J. et al. (Jun. 4, 2004). “Solution Synthesis of Ultrastable Luminescent Siloxane-Coated Silicon Nanoparticles,” Nano Letters 4(7):1181-1186.
Non Final Office Action mailed on Feb. 19. 2010, for U.S. Appl. No. 12/152,109, filed May 9, 2008, Biberger et al., 17 pages.
Final Office Action mailed on Jan. 7, 2010, for U.S. Appl. No. 12/001,643, filed Dec. 11, 2007, for Biberger et al., 9 pages.
Advisory Action mailed on Mar. 4, 2010, for U.S. Appl. No. 12/001,643, filed Dec. 11, 2007, for Biberger et al., 9 pages.
Non Final Office Action mailed on Jun. 16, 2010, for U.S. Appl. No. 12/001,643, filed Dec. 11, 2007, for Biberger et al., 9 pages.
Non Final Office Action mailed on Jun. 22, 2011, for U.S. Appl. No. 12/001,643, filed Dec. 11, 2007, for Biberger et al., 13 pages.
Advisory Action mailed on Sep. 23, 2011, for U.S. Appl. No. 12/001,643, filed Dec. 11, 2007, for Biberger et al., 8 pages.
Final Office Action mailed on Feb. 26, 2010, for U.S. Appl. No. 12/474,081, filed May 28, 2009, for Biberger et al., 7 pages.
Advisory Action mailed on May 4, 2010, for U.S. Appl. No. 12/474,081, filed May 28, 2009, for Biberger et al., 7 pages.
Non Final Office Action mailed on Jun. 23, 2010, for U.S. Appl. No. 12/474,081, filed May 28, 2009, for Biberger et al., 12 pages.
Non Final Office Action mailed on Dec. 8, 2010, for U.S. Appl. No. 12/474,081, filed May 28, 2009, for Biberger et al., 14 pages.
Advisory Action mailed Jul. 21, 2011, for U.S. Appl. No. 12/474,081, filed May 28, 2009, for Biberger et al., 3 pages.
Non Final Office Action mailed on Feb. 18, 2010, for U.S. Appl. No. 12/001,644, filed Dec. 11, 2007, for Biberger et al., 8 pages.
Final Office Action mailed on Jun. 30, 2010, for U.S. Appl. No. 12/001,644, filed Dec. 11, 2007, for Biberger et al., 8 pages.
Non Final Office Action mailed on Jun. 21, 2011, for U.S. Appl. No. 12/001,644, filed Dec. 11, 2007, for Biberger et al., 12 pages.
U.S. Appl. No. 13/291,983, filed Nov. 8, 2011, for Layman et al.
U.S. Appl. No. 12/152,084, filed May 9, 2008, for Biberger.
U.S. Appl. No. 13/028,693, filed Feb. 16, 2011, for Biberger.
U.S. Appl. No. 12/943,909, filed Nov. 10, 2010, for Layman.
U.S. Appl. No. 12/152,111, filed May 9, 2008, for Biberger et al.
U.S. Appl. No. 12/151,830, filed May 8, 2008, for Biberger et al.
U.S. Appl. No. 12/968,248, filed Dec. 14, 2010, for Biberger.
U.S. Appl. No. 12/968,245, filed Dec. 14, 2010, for Biberger.
U.S. Appl. No. 12/968,241, filed Dec. 14, 2010, for Biberger.
U.S. Appl. No. 12/968,239, filed Dec. 14, 2010, for Biberger.
U.S. Appl. No. 12/969,128, filed Dec. 15, 2010, for Biberger.
U.S. Appl. No. 12/962,463, filed Dec. 7, 2010, for Leamon.
U.S. Appl. No. 12/961,030, filed Dec. 6, 2010, for Lehman.
U.S. Appl. No. 12/961,108, filed Dec. 6, 2010, for Lehman.
U.S. Appl. No. 12/961,200, filed Dec. 6, 2010, for Lehman.
U.S. Appl. No. 12/968,253, filed Dec. 14, 2010, for Biberger.
U.S. Appl. No. 12/968,235, filed Dec. 14, 2010, for Biberger.
U.S. Appl. No. 12/969,306, filed Dec. 15, 2010, for Lehman et al.
U.S. Appl. No. 12/969,447, filed Dec. 15, 2010, for Biberger et al.
U.S. Appl. No. 12/969,087, filed Dec. 15, 2010, for Biberger.
U.S. Appl. No. 12/962,533, filed Dec. 7, 2010, for Yin et al.
U.S. Appl. No. 12/962,523, filed Dec. 7, 2010, for Yin et al.
U.S. Appl. No. 12/001,643, filed Dec. 11, 2007, for Biberger et al.
U.S. Appl. No. 12/474,081, filed May 28, 2009, for Biberger et al.
U.S. Appl. No. 12/001,644, filed Dec. 11, 2007, for Biberger et al.
U.S. Appl. No. 12/969,457, filed Nov. 15, 2010, for Leamon et al.
U.S. Appl. No. 12/969,503, filed Nov. 15, 2010, for Leamon et al.
U.S. Appl. No. 12/954,813, filed Nov. 26, 2010, for Biberger.
U.S. Appl. No. 12/954,822, filed Nov. 26, 2010, for Biberger.
U.S. Appl. No. 13/033,514, filed Feb. 23, 2011, for Biberger et al.
U.S. Appl. No. 13/589,024, filed Aug. 17, 2012, for Yin et al.
U.S. Appl. No. 13/801,726, filed Mar. 13, 2013, for Qi et al.
Ahmad, K. et al. (2008). “Hybrid Nanocomposites: A New Route Towards Tougher Alumina Ceramics,” Composites Science and Technology 68: 1321-1327.
Chau, J. K. H. et al. (2005). “Microwave Plasma Synthesis of Silver Nanopowders,” Materials Letters 59: 905-908.
Das, N. et al. (2001). “Influence of the Metal Function in the “One-Pot” Synthesis of 4-Methyl-2-Pentanone (Methyl Isobutyl Ketone) from Acetone Over Palladium Supported on Mg(Al)O Mixed Oxides Catalysts,” Catalysis Letters 71(3-4): 181-185.
Ihlein, G. et al.(1998). “Ordered Porous Materials as Media for the Organization of Matter on the Nanoscale,” Applied Organometallic Chemistry 12: 305-314.
Lakis, R. E. et al. (1995). “Alumina-Supported Pt—Rh Catalysts: I. Microstructural Characterization,” Journal of Catalysis 154: 261-275.
Schimpf, S. et al. (2002). “Supported Gold Nanoparticles: In-Depth Catalyst Characterization and Application in Hydrogenation and Oxidation Reactions,” Catalysis Today 2592: 1-16.
Wan, J. et al. (2005). “Spark Plasma Sintering of Silicon Nitride/Silicon Carbide Nanocomposites with Reduced Additive Amounts,” Scripta Materialia 53: 663-667.
Date, A. R. et al. (1987). “The Potential of Fire Assay and Inductively Coupled Plasama Source Mass Spectrometry for the Determination of Platinum Group Elements in Geological Materials,” Analyst 112: 1217-1222.
Lamouroux, E. et al. (2007). “Identification of Key Parameters for the Selective Growth of Single or Double Wall Carbon Nanotubes on FeMo/Al2O3 CVD Catalysts,” Applied Catalysts A: General 323: 162-173.
Martinez-Hansen, V. et al. (2009). “Development of Aligned Carbon Nanotubes Layers Over Stainless Steel Mesh Monoliths,” Catalysis Today 1475: 571-575.
Panchula, M. L. et al. (2003). “Nanocrystalline Aluminum Nitride: I, Vapor-Phase Synthesis in a Forced-Flow Reactor,” Journal of the American Ceramic Society 86(7): 1114-1120.
Related Publications (1)
Number Date Country
20130345047 A1 Dec 2013 US
Provisional Applications (1)
Number Date Country
60999057 Oct 2007 US
Continuations (1)
Number Date Country
Parent 12001602 Dec 2007 US
Child 14010392 US