期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 530, 期 -, 页码 6-10出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.02.157
关键词
Copper oxide; Multi-walled carbon nanotubes; Chemical activation; Supercapacitor
资金
- Korea CCS RD Center
- Ministry of Education, Science and Technology of Korean government
In this work, we synthesized copper oxide (CuO) nanoparticle-deposited activated multi-walled carbon nanotubes (ACNTs) to evaluate their potential applicability to supercapacitor electrodes. The ACNTs were prepared by chemical activation using KOH and then CuO/ACNTs composites were obtained by chemical deposition method. The structural and morphological characteristics of the CuO/ACNTs were determined by X-ray diffraction (XRD) and transmission electron microscopy (TEM), respectively. The changes of surface properties of CNTs were investigated using X-ray photoelectron spectroscopy (XPS) method. The electrochemical performance of CuO/ACNTs electrodes was examined by cyclic voltammetry (CV) and galvanostatic charge/discharge characteristics in 6M KOH electrolyte. The results showed that the CuO/ACNTs electrodes had typical pseudo-capacitive behavior and a greater specific capacitance than those of the CuO/CNTs electrodes. This was probably due to the synergistic effect induced between CuO and ACNTs. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
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