Peculiarities of Variation of Specific Capacitance of Activated Carbon-Fiber Material during Voltammetric Cycling

摘要

Variation of the specific capacitance of electrodes made of activated carbon-fiber material depending on the number of voltammetric cycles is studied. The specific capacitances of electrodes fabricated by different methods are measured in relation to the number of voltammetric cycles. The dependence curves of the material capacitance with reference to the time of residence in electrolyte and to the potential sweep rate are obtained. A viable explanation of the observed patterns is proposed.