Abstract Electrochemical energy storage plays a major rule in the current shift to renewable energy sources in the form of batteries, supercapacitors, and fuel cells. This work represents the fabrication of supercapacitor electrodes comprised of activated carbon powder (ACP) and graphene oxide (GOx) drop-casted onto graphite substrates. ACP, based on its performance in a beaker cell in aqueous 1M H2SO4, was used as a current collector to enhanced the performance of the GOx electrodes. A graphitic device fabricated with ACP/GOx layered electrodes produced a specific capacitance of 16.5 F/g and energy density of 2.3 Wh/kg at scan rate of 10 mV/s.

中文翻译：

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石墨基板上带有活性炭集流体的氧化石墨烯超级电容器电极的制备和电化学表征

摘要 电化学储能在当前向电池、超级电容器和燃料电池等可再生能源的转变中发挥着重要作用。这项工作代表了超级电容器电极的制造，该电极由滴铸到石墨基板上的活性炭粉末 (ACP) 和氧化石墨烯 (GOx) 组成。ACP 基于其在 1M H2SO4 水溶液中的烧杯电池的性能，被用作集电器以提高 GOx 电极的性能。用 ACP/GOx 分层电极制造的石墨器件在 10 mV/s 的扫描速率下产生 16.5 F/g 的比电容和 2.3 Wh/kg 的能量密度。