High capacitive performance of nanostructured Mn-Ni-Co oxide composites for supercapacitor

被引：102

作者：

Luo, Jian-Min ^{[2
]}

Gao, Bo ^{[1
]}

Zhang, Xiao-Gang ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Peoples R China

[2] Xinjiang Univ, Inst Appl Chem, Urumqi 830046, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2008年 / 43卷 / 05期

基金：

中国国家自然科学基金;

关键词：

nanostructures; oxides; chemical synthesis; electrochemical measurement; electrochemical properties;

D O I：

10.1016/j.materresbull.2007.06.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured Mn-Ni-Co oxide composites (MNCO) were prepared by thermal decomposition of the precursor obtained by chemical co-precipitation of Mn, Ni and Co salts. The chemical composition and morphology were characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM). The electrochemical capacitance of MNCO electrode was examined by cyclic voltammetry, impedance and galvanostatic charge-discharge measurements. The results showed that MNCO electrode exhibited the good electrochernical characteristics. A maximum capacitance value of 1260 F g(-1) could be obtained within the potential range of -0.1 to 0.4 V versus saturated calomel electrode (SCE) in 6 mol L-1 KOH electrolyte. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1119 / 1125

页数：7

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