论文部分内容阅读
A facile UV-photolysis method has been developed to synthesize bessite-type MnO2 nanosheets on carbon film at room temperature for supercapacitor electrode materials.The results clearly demonstrated that the specific capacitance of carbon/MnO2 composite electrodes was controlled by the adjustable UV-photolysis reaction time in KMnO4 solution.For the optimized composite electrode obtained after 2 h reaction,a superior specific capacitance of 277 F g-1 was achieved at current density of 0.2 A g-1.This finding suggests that UV-photolysis is a potential method to fabricate MnO2 on carbon film for supercapacitor.