【作者】 曾俊； 刘亚菲； 程庚金生； 胡中华；

【Author】 Zeng Jun, Liu Yafei, Cheng GengJinSheng, Hu Zhonghua* Department of chemistry, Tongji University, 200092,Shanghai

【机构】 同济大学化学系；

【Abstract】 Commercial activated carbon was modified by means of soaking in nickel nitrate and cobalt nitrate solution and pyrolysis. The nitrogen adsorption at 77K was used to study the surface area and porosity of modified carbons. The performance of electric double-layer capacitors (EDLC) using resultant carbons as electrode materials was investigated by cyclic voltammetry and constant current charge/discharge. The results showed that NiO and CoO produced from Ni(NO3)2 and Co(NO3)2 decomposition had obvious pseudo-capacitance effect. The specific capacitance of NiO-AC and CoO-AC could be as high as 246.1 F/g, 198.8 F/g; 89.2%, 52.8% higher than that of original carbon, respectively.更多还原