金属Mn/活性炭电极材料电化学性能的研究

Effect of loaded Mn metal on the specific capacitances of the activated carbon electrodes

选用不同孔结构的活性炭采用浸渍法负载Mn金属离子,考察活性炭在负载前后的比电容变化情况。研究表明,金属Mn具有比较明显的准电容效应,其中负载金属Mn的中孔活性炭和微孔活性炭的比电容分别增加63.17%和19.69%,中孔活性炭负载金属Mn时,比电容随负载量的增加而上升;微孔活性炭负载5%时比电容最大为340.16F/g。

Two activated carbons with different pore size distributions were selected to impregnate with Mn metal, which used as electrode material of the supercapacitor. The effect of loaded metals on the characterization of AC as polarizable electrodes had been investigated. It was found that Mn metal had obvious pseudo-capacitance effect to improve the specific capacitance of Acs, and the capacitances of AC loaded metal Mn with micro and meso pore size distributions increased 63.17% and 19.69% respectively. The capacitances of mesopore activated carbon were increased with the increase in the loaded weight of metal Mn, but the maximal capacitance of the micropore AC was 340.16F/g with 5% loaded weight metal Mn.