Coating single walled carbon nanotube with SnO₂ and its electrochemical properties

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• 作者：Z.J. Li ; T.X. Chang ; ^{shimoxi2012@126.com} ; G.Q. Yun ; Y. Jia
• 关键词：Single-walled carbon nanotubes ; SnO2 nanoparticles ; Electrochemical
• 刊名：Powder Technology
• 出版年：2012
• 期刊代码：144_00325910
• 类别：et
• 出版时间：July, 2012
• 卷：224
• 期：Complete
• 页码：306-310
• 文件大小：729 K

摘要

A core-shell nanowires of SnO₂ and single-walled carbon nanotubes (SnO₂/SWCNTs) was synthesized by electrodeposited technique. The morphology and microstructure of the as-prepared composites were characterized by Scanning Electron Microscopy, High-resolution transmission electron microscopy, Raman microscope, and X-ray diffraction. The characterizations indicate that SnO₂ successfully deposited on SWCNTs surfaces. The electrochemical performance of the core-shell structures as electrode materials of supercapacitor was investigated. The results showed that SnO₂/SWCNTs core-shell nanowires have much higher specific capacitance of 320 F.g^鈭?#xA0;1, at a scan rate of 6 mV.s^鈭?#xA0;1 and excellent cycling capability. Our results demonstrate that these core-shell nanowires are very promising for supercapacitors application.