MnO2 multilayer nanosheet clusters evolved from monolayer nanosheets and their predominant electrochemical properties

被引：100

作者：

Feng, Zhan-Ping ^{[1
]}

Li, Gao-Ren ^{[1
]}

Zhong, Jin-Hui ^{[1
]}

Wang, Zi-Long ^{[1
]}

Ou, Yan-Nan ^{[1
]}

Tong, Ye-Xiang ^{[1
]}

机构：

[1] Sun Yat Sen Univ, MOE Lab Bioinorgan & Synthet Chem, Sch Chem & Chem Engn, Inst Optoelect & Funct Composite Mat, Guangzhou 510275, Guangdong, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 03期

关键词：

Electrodeposition; MnO2; Multilayer nanosheets; Supercapacitor; Specific capacitance; CATALYTIC-ACTIVITY; CRYPTOMELANE; ROUTE; NANOMATERIALS;

D O I：

10.1016/j.elecom.2009.01.001

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

MnO2 multilayer nanosheet clusters were prepared via electrochemical deposition route, which shows simpleness and high efficiency. The growth process of MnO2 multilayer nanosheet clusters was investigated in this paper. The deposited MnO2 films were characterized by XRD, SEM, TEM, and XPS. In addition, it was also electrochemically characterized by cyclic voltammetry in 1.0 M Na2SO4 electrolyte. The MnO2 multilayer nanosheet clusters show a big specific capacitance, and it can be achieved about 521.5 Fg(-1) at 5 mV s(-1). These materials also have a high electrochemical stability. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：706 / 710

页数：5

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