Hierarchical porous nickel oxide and carbon as electrode materials for asymmetric supercapacitor

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	Hierarchical porous nickel oxide and carbon as electrode materials for asymmetric supercapacitor
	D. W. Wang; F. Li; H. M. Cheng
	2008
发表期刊	Journal of Power Sources
ISSN	0378-7753
卷号	185 期号:2 页码:1563-1568
摘要	Asymmetric supercapacitor is constructed using hierarchical porous electrode materials of nickel oxide and carbon with the aim to facilitate ion transport. Hierarchical porous nickel oxide and carbon are prepared by template-directed synthesis. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charging-discharging are used to test the asymmetric supercapacitor and investigate the electrode processes at different supercapacitor voltages. The capacitance, energy density and power density of the asymmetric supercapacitor can be improved by elevating the supercapacitor voltage, and its cycling stability decays at high voltage, but the columbic efficiency stays close to 100%. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[wang, da-wei; li, feng; cheng, hui-ming] chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china.;cheng, hm (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn
关键词	Hierarchical Pores Nickel Oxide Carbon Supercapacitor Activated Carbon Electrochemical Capacitors Hybrid Capacitor Film Electrodes Storage Energy Route
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WOS记录号	WOS:000261748900142
引用统计	被引频次：426[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33120
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. W. Wang,F. Li,H. M. Cheng. Hierarchical porous nickel oxide and carbon as electrode materials for asymmetric supercapacitor[J]. Journal of Power Sources,2008,185(2):1563-1568.
APA	D. W. Wang,F. Li,&H. M. Cheng.(2008).Hierarchical porous nickel oxide and carbon as electrode materials for asymmetric supercapacitor.Journal of Power Sources,185(2),1563-1568.
MLA	D. W. Wang,et al."Hierarchical porous nickel oxide and carbon as electrode materials for asymmetric supercapacitor".Journal of Power Sources 185.2(2008):1563-1568.