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The influence of pretreatment on multi-wall carbon nanotubes for electrochemical capacitors
X. Geng; F. Li; D. W. Wang; H. M. Cheng
2013
发表期刊New Carbon Materials
ISSN1007-8827
卷号28期号:2页码:146-150
摘要Multi-wall carbon nanotubes (MWCNTs) prepared by chemical vapor deposition, were pretreated by ball milling, chemical activation, and ammoxidation and the influence of the pretreatment on their electrochemical capacitance was investigated. Results show that MWCNTs can be shortened and broken by ball milling and chemical activation, and as a result their surface area and pore volume are increased. However, ammoxidation decreases the surface area of the activated MWCNTs. The electrical conductivity of the ball-milled MWCNTs is the smallest while that of the ammoxidated is the largest. The specific capacitances of the ball-milled and the activated MWCNTs are close, but higher than that of the ammoxidated MWCNTs. The capacitances of the MWCNTs pretreated by ball milling, chemical activation and ammoxidation are reduced by 17, 27 and 13% respectively when the discharge current density is increased from 5 to 100 mA/g.
部门归属[geng xin] univ sci & technol liaoning, sch chem engn, dept appl chem, anshan 114051, peoples r china. [geng xin ; li feng ; wang da-wei ; cheng hui-ming] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; cheng, hm (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. ; gengxin60@163.com ; cheng@imr.ac.cn
关键词Multi-walled Carbon Nanotubes Pretreatment Electrochemical Double-layer Capacitor Supercapacitors Composites Activation
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语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/71227
专题中国科学院金属研究所
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GB/T 7714
X. Geng,F. Li,D. W. Wang,et al. The influence of pretreatment on multi-wall carbon nanotubes for electrochemical capacitors[J]. New Carbon Materials,2013,28(2):146-150.
APA X. Geng,F. Li,D. W. Wang,&H. M. Cheng.(2013).The influence of pretreatment on multi-wall carbon nanotubes for electrochemical capacitors.New Carbon Materials,28(2),146-150.
MLA X. Geng,et al."The influence of pretreatment on multi-wall carbon nanotubes for electrochemical capacitors".New Carbon Materials 28.2(2013):146-150.
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