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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
Source PublicationNew Carbon Materials
ISSN1007-8827
Volume28Issue:2Pages:146-150
AbstractMulti-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.
description.department[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
KeywordMulti-walled Carbon Nanotubes Pretreatment Electrochemical Double-layer Capacitor Supercapacitors Composites Activation
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71227
Collection中国科学院金属研究所
Recommended Citation
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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