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In this report, the supercapacitor was constructed with activated carbon paper as electrodes and 3 M H2SO4 solution bearing 1 M VOSO4 as electrolyte. This supercapacitor showed high areal capacitance of 2146 mF/cm2 with around 16 times higher than that of 134 mF/cm2 in pristine electrolyte of 3 M H2SO4 and good cycling performance retaining 92 % after 5000 cycles. The full-scale and enlarged Nyquist-type...
In this paper, an effective strategy using potassium dichromate lotion to activate surfaces of commercial carbon papers leading to enhanced electrochemical capacitances was reported. It is revealed that surfaces of activated carbon papers became rougher and their specific surface areas enlarged after treatment. Further, surface hydrophilicity of the treated carbon papers enhanced due to the generation...
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