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Journal of Nanomaterials
Volume 2016, Article ID 7090473, 6 pages
http://dx.doi.org/10.1155/2016/7090473
Research Article

Silicon Carbide-Derived Carbon Prepared by Fused Salt Electrolysis and Electrochemical Performance

1School of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
2State key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

Received 30 March 2016; Revised 18 May 2016; Accepted 1 June 2016

Academic Editor: Pushpendra Kumar

Copyright © 2016 Shuyuan Wang and Guangjie Shao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A number of carbide-derived carbon (CDC) samples were successfully synthesized by the electrolysis of SiC powder in molten CaCl2. The electrolysis was conducted at different temperatures (850, 900, and 950°C) for 48 h in argon at an applied constant voltage of 3.1 V. The structure of the resulting carbon is characterized by X-ray diffraction, Raman spectroscopy, and transmission electron microscope techniques. Cyclic voltammetry and galvanostatic charge/discharge measurements are applied to investigate electrochemical performances of the SiC-CDC material. It can be seen that the degree of order of the SiC-CDC increases monotonically along with elevation of reaction temperature, while the highest specific surface area 1137.74 m2/g together with a specific capacitance of 161.27 F/g at a current density 300 mA/g was achieved from sample synthesized at 900°C.