Self-assembled spongy-like MnO2 electrode materials for supercapacitors

被引：18

作者：

Dong, Meng ^{[1
]}

Zhang, Yu Xin ^{[1
]}

Song, Hong Fang ^{[1
]}

Qiu, Xin ^{[1
]}

Hao, Xiao Dong ^{[1
]}

Liu, Chuan Pu ^{[1
]}

Yuan, Yuan ^{[1
,2
]}

Li, Xin Lu ^{[1
]}

Huang, Jia Mu ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400045, Peoples R China

[2] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400045, Peoples R China

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2012年 / 45卷

基金：

国家教育部博士点专项基金资助; 中国国家自然科学基金;

关键词：

PSEUDOCAPACITANCE PROPERTIES; ELECTROCHEMICAL CAPACITORS; MICROEMULSION METHOD; MANGANESE; NANOPARTICLES; NANOSTRUCTURES; OXIDES;

D O I：

10.1016/j.physe.2012.07.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mesoporous spongy-like MnO2 has been synthesized via a facile and biphasic wet method, accompanied with tetraoctylammonium bromide (TOAB) as a soft template under ambient condition. A well-defined spongy morphology of MnO2 with uniform filament diameters 10-20 nm have been observed by FESEM, TEM, HRTEM, XRD, FT-IR,TGA-DSC studies. Further physical characterizations revealed that MnO2 sponges owned a large surface area of 155 m(2) g(-1) with typical mesoporous appearance. A specific capacitance value as high as 336 F g(-1) was obtained. This improved capacitive behavior was attributed to the large surface area, morphology nature of nano-MnO2, and its broad pore size distribution. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：103 / 108

页数：6

共 28 条

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