標題: Modification of multi-walled carbon nanotubes by microwave digestion method as electrocatalyst supports for direct methanol fuel cell applications
作者: Chen, Chien-Chung
Chen, Chia-Fu
Chen, Chieng-Ming
Chuang, Fang-Tzu
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: multi-walled carbon nanotubes;microwave digestion;direct methanol fuel cell;catalyst supports;polyol method
公開日期: 1-Jan-2007
摘要: Multi-walled carbon nanotubes (MWCNTs) which were directly synthesized on carbon cloth were modified by a microwave digestion method in 5 M HNO3 for supporting Pt nanoparticles. The characterizations of modified CNTs were carried out by TEM, XPS, FTIR and Raman spectroscopy. The HRTEM image shows the caps of MWCNTs are opened after modifying by microwave digestion method. The open-end and undamaged MWCNTs can provide a larger surface area for supporting more catalysts. Furthermore, the methanol electrocatalytic oxidation of microwave digestion treated Pt/MWCNTs electrode shows higher current density than pristine and nitric acid-treated MWCNTs from cyclic voltammograms. This can be an effective and undamaged method for modifying CNTs. (c) 2006 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.elecom.2006.06.031
http://hdl.handle.net/11536/11248
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2006.06.031
期刊: ELECTROCHEMISTRY COMMUNICATIONS
Volume: 9
Issue: 1
起始頁: 159
結束頁: 163
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