BRIEF DESCRIPTION OF THE DRAWINGS
The above and other features and advantages of the present invention will become more apparent by reference to the following detailed description when considered in conjunction with the attached drawings in which:
FIG. 1 is a scanning electron microscope (SEM) image of the coordination polymer prepared according to Example 1;
FIG. 2 is a SEM image of the carbon-nickel composite prepared according to Example 1;
FIGS. 3A and 3B are SEM images of the porous nickel oxide prepared according to Example 1;
FIG. 4 is an X-ray diffraction (XRD) graph of the porous nickel oxide prepared according to Example 1;
FIG. 5 is a graph illustrating the nitrogen adsorption of the porous nickel oxide prepared according to Example 1;
FIGS. 6A and 6B are SEM images of the porous nickel oxide prepared according to Example 2;
FIGS. 7A and 7B are SEM images of the porous nickel oxide prepared according to Example 3;
FIGS. 8A and 8B are SEM images of the porous nickel oxide prepared according to Example 4;
FIGS. 9A and 9B are SEM images of the porous nickel oxide prepared according to Example 5;
FIG. 10 is an XRD graph of the porous nickel oxide prepared according to Examples 1 through 5;
FIG. 11 is a graph illustrating the nitrogen adsorption of the porous nickel oxide prepared according to Example 4;
FIGS. 12A and 12B are SEM images of the porous Ni0.8Co0.2O prepared according to Example 6;
FIGS. 13A and 13B are SEM images of the porous Ni0.8Co0.2O2 prepared according to Example 7;
FIG. 14 is a graph illustrating the charge/discharge properties of the cell prepared according to Example 8; and
FIG. 15 is a graph illustrating capacitance variation when the cells prepared according to Example 8 and the Comparative Example were charged and discharged 100 times.
Patent Application
20070231250
