Cu-doped NiO for aqueous asymmetric electrochemical capacitors
作者： Guohui Yuan , Yunfu Liu , Min Yue , Hongju Li , Encheng Liu
DOI: 10.1016/J.CERAMINT.2014.01.124
关键词:
摘要: Abstract In this work, the influence of Cu doping on electrochemical properties NiO was investigated regarding its performance as electrodes in aqueous supercapacitors. and Ni1−xCuxO (x=0.5–3%) cathode materials were synthesized via a citrate-gel process. samples have same crystal structures those un-doped NiO, indicating that copper atoms enter into lattice nickel mono-oxide. Compared to Cu-doping significantly improve specific capacitance rate capability. Especially, among all samples, Ni0.99Cu0.01O presents best high 559 389 F g−1, which are 90.14% 86.12% higher than at 0.3 10 A/g, respectively. This work demonstrated is an effective way pseudo-capacitance monoxide.
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