SYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF CMK-3 WITH PARTICLES OF NICKEL, COBALT AND COPPER
Abstract
Mesostructured carbon materials CMK-3 for electrodes of electrochemical capacitors was obtained by the method of template synthesis. In order to increase the capacitance characteristics, impregnation of metal ions (Co, Ni, and Cu) into the structure of mesoporous carbon CMK-3 was carried out. The structure of the obtained materials was studied by X-ray diffraction and gas adsorption. TEM showed that Co, Ni nanoparticles have sizes of 30-50 nm and are uniformly distributed inside the carbon material. Electrochemical characteristics were studied in aqueous electrolytes (1M KCl and 1M KOH). It has been established that the impregnation of metal ions increases in the specific capacity of the mesoporous carbon material by about 30% (from 110 to 156 F/g) in KOH.