Investigation of the electrochemical properties of highly porous carbon materials with metal hydroxide to produce composited electrodes with a high capacity

摘要

The possibility of the increasing of capacity characteristics of metal-carbon composites synthesized from highly porous carbon material was shown in this paper. Samples of highly porous carbon material were prepared by carbonization (600-800 °C) with alkali excess. Individual organic compounds (mixture of phenol and furfurol) were used as precursors. Product yield was about 30 % from precursor's mass. The BET specific surface area and total pore volume of carbon material is ~ 2900 m2/g and 3,7 cm3/g respectively. The surface of highly porous carbon material was impregnated by incipient wetness method with nickel chloride solution, followed by the treatment with sodium hydroxide solution in superstoichiometric amount. Concentration of solutions was chosen taking into account the porous structure parameters of carbon material and the required content of nickel hydroxide in the composites.