Preparation of monodisperse carbon nanospheres for electrochemical capacitors

被引：128

作者：

Yuan, Dingsheng ^{[1
]}

Chen, Jingxing ^{[1
]}

Zeng, Jianghua ^{[1
]}

Tan, Sanxiang ^{[1
]}

机构：

[1] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 07期

关键词：

electrochemical capacitors; carbon nanospheres; hydrothermal method; specific surface area; specific capacitance;

D O I：

10.1016/j.elecom.2008.05.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The efficiently hydrothermal route using sucrose without any catalysts is employed to prepare the uniform carbon spheres. The monodisperse 100-150 nm carbon spheres are obtained with the activation treatment in molten KOH. The carbon spheres are characterized by transmission electron microscope, X-ray diffraction, N-2 adsorption, Raman spectroscopy and electrochemical techniques. The relationships of specific capacitance and surface properties of carbon spheres are investigated. A single electrode of carbon nanosphere materials performs excellent specific capacitance (328 F g(-1)), area capacitance (19.2 mu F cm(-2)) and volumetric capacitance (383 F cm(-3)). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1067 / 1070

页数：4

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