A Porous Perchlorate-Doped Polypyrrole Nanocoating on Nickel Nanotube Arrays for Stable Wide-Potential-Window Supercapacitors
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Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
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Gao-Feng Chen1, Xian-Xia Li1, Li-Yi Zhang1
1School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology, Guangzhou University, Guangzhou Higher Education Mega Center, Waihuan Xi Road No. 230, Guangzhou, 510006, P. R. China.
Abstract:
A bottom-up synthetic strategy is developed to fabricate a highly porous wave-superposed perchlorate-doped polypyrrole nanocoating on nickel nanotube arrays. The delicate nanostructure and the unique surface chemistry synergistically endow the obtained electrode with revealable pseudocapacitance, large operating potential window, and excellent cycling stability, which are highly promising for both asymmetric and symmetric supercapacitors.
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