One-pot hydrothermal synthesis of Mn3O4/graphene nanocomposite for supercapacitors

被引：61
作者：
Fan, Yafei [1 ]
Zhang, Xudong [1 ]
Liu, Yushan [1 ]
Cai, Qiang [2 ,3 ]
Zhang, Jianmin [1 ]
机构：
[1] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan Province, Peoples R China
[2] Tsinghua Univ, Key Lab Adv Mat, Minist Educ, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
MATERIALS LETTERS | 2013年 / 95卷
关键词：
Carbon materials; Nanocomposites; Energy storage and conversion;
D O I：
10.1016/j.matlet.2012.12.110
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mn3O4/graphene nanocomposite with the structure of Mn3O4 nanoparticles anchored on graphene sheets was synthesized using a facile in situ one-pot hydrothermal method. The growth of Mn3O4 nanoparticles and the reduction of graphene oxide occurred simultaneously during this hydrothermal process. Hexagonal flake-like Mn3O4 nanoparticles were found well-dispersed on graphene sheets. Cyclic voltammetry (CV), galvanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS) measurements were used to assess the electrochemical properties of Mn3O4/graphene nanocomposite. The Mn3O4/graphene nanocomposite exhibited a specific capacitance of 171 F g(-1) in 1 M Na2SO4 aqueous electrolyte and a good rate property. The results showed that the Mn3O4/graphene nanocomposite could be used as electrode material for high performance supercapacitors. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 156
页数：4
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