Claims
- 1. A high throughput screening device for combinatorial chergistry, comprising:
a membrane electrode assembly, one or more common electrodes, an array of sensor electrodes and a plurality of flow channels, wherein a total cross-sectional area of the one or more common electrodes is greater than a sum of the cross-sectional areas of the sensor electrodes and the device does not require a movement of any electrode during data acquisition and wherein the device has a plurality of inlets and a plurality of outlets.
- 2. The device of claim 1, wherein the array of sensor electrodes are capable of being operated simultaneously in a fuel cell.
- 3. The device of claim 1, wherein the device further comprises a catalyst.
- 4. The device of claim 3, wherein the catalyst is a bulk electrocatalyst.
- 5. The device of claim 4, wherein the catalyst is applied to a membrane.
- 6. The device of claim 1, wherein the membrane electrode assembly comprises an electrolyte layer and two catalyst layers.
- 7. The device of claim 6, wherein the electrolyte layer is a membrane.
- 8. The device of claim 1, further comprising a flow field block.
- 9. The device of claim 8, further comprising a current follower and a potential follower.
- 10. The device of claim 1, wherein the sensor electrode comprises graphite.
- 11. A high throughput screening device for combinatorial chemistry, comprising:
a membrane electrode assembly, one or more common electrodes, an array of sensor electrodes and a plurality of flow channels, wherein a total cross-sectional area of the one or more common electrodes is greater than a sum of the cross-sectional areas of the sensor electrodes and the array of sensor electrodes are operated simultaneously and wherein the device has a plurality of inlets and a plurality of outlets.
- 12. The device of claim 11, wherein the device further comprises a catalyst.
- 13. The device of claim 12, wherein the catalyst is bulk electrocatalyst.
- 14. The device of claim 13, wherein the catalyst is applied to a membrane.
- 15. The device of claim 11, wherein the membrane electrode assembly comprises an electrolyte layer and two catalyst layers.
- 16. The device of claim 15, wherein the electrolyte layer is a membrane.
- 17. The device of claim 11, further comprising a flow field block.
- 18. The device of claim 17, further comprising a current follower and a potential follower.
- 19. The device of claim 11, wherein the sensor electrode comprises graphite.
- 20. The device of claim 11, wherein the membrane electrode assembly comprises an electrolyte.
- 21. The device of claim 1, wherein each flow channel has an isolated inlet.
- 22. The device of claim 1, wherein each flow channel has an isolated outlet.
- 23. The device of claim 21, wherein each flow channel has an isolated outlet.
- 24. The device of claim 1, wherein the device measures and compares flow in a flow channel across the width of the device to ensure flow uniformity.
- 25. The device of claim 1, wherein the device measures and compares flow in every channel across the width of the device to ensure flow uniformity.
- 26. The device of claim 1, further comprising an external reservoir attached to the device to create a substantially uniform pressure of a fluid at the inlets.
- 27. The device of claim 26, wherein the fluid is a gas.
- 28. The device of claim 26, wherein the inlets comprise porous metal frits.
- 29. The device of claim 1, further comprising a pressure gauge at the inlets.
- 30. The device of claim 1, wherein the device is an array fuel cell (FC) that utilizes a counter electrode flow field and a multiple inlet gas fed array electrode flow field and the device evaluates fuel cell electro-catalyst surfaces simultaneously or in groups.
- 31. The device of claim 11, wherein each flow channel has an isolated inlet.
- 32. The device of claim 11, wherein each flow channel has an isolated outlet.
- 33. The device of claim 31, wherein each flow channel has an isolated outlet.
- 34. The device of claim 11, wherein the device measures and compares flow in a flow channel across the width of the device to ensure flow uniformity.
- 35. The device of claim 11, wherein the device measures and compares flow in every channel across the width of the device to ensure flow uniformity.
- 36. The device of claim 11, further comprising an external reservoir attached to the device to create a substantially uniform pressure of a fluid at the inlets.
- 37. The device of claim 36, wherein the fluid is a gas.
- 28. The device of claim 26, wherein the inlets comprise porous metal frits.
- 39. The device of claim 11, further comprising a pressure gauge at the inlets.
- 40. The device of claim 11, wherein the device is an array fuel cell (FC) that utilizes a counter electrode flow field and a multiple inlet gas fed array electrode flow field and the device evaluates fuel cell electro-catalyst surfaces simultaneously or in groups.
RELATED APPLICATIONS
[0001] This application is a continuation-in-part of Ser. No. 09/907,628, filed Jul. 19, 2001, which claims benefit from U.S. provisional application No. 60/219,107, filed Jul. 19, 2000, entitled “Device For High Throughput Combinatorial Screening Of Bulk Electrocatalysts” and to PCT application no. PCT/US01/22137, filed Jul. 16, 2001 having the same title as the present application, the entire disclosures of which are hereby incorporated herein by reference. This application is related to PCT application no. PCT/US01/20032, Filed Jun. 22, 2001, and U.S. patent application Ser. No. 09/891,200, filed Jun. 25, 2001, which claims priority to U.S. provisional application No. 60/244,208, filed Oct. 31, 2000, both entitled, “Hydrogen Permeable Membrane For Use In Fuel Cells And Partial Catalysts In The Anode Fuel Cell Compartment,” the entire disclosures of which are hereby incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60219107 |
Jul 2000 |
US |
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
09907628 |
Jul 2001 |
US |
Child |
10778358 |
Feb 2004 |
US |
Parent |
PCT/US01/22137 |
Jul 2001 |
US |
Child |
10778358 |
Feb 2004 |
US |