Modification of multi-walled carbon nanotubes by microwave digestion method as electrocatalyst supports for direct methanol fuel cell applications

被引：64

作者：

Chen, Chien-Chung ^{[1
]}

Chen, Chia-Fu ^{[1
]}

Chen, Chieng-Ming ^{[1
]}

Chuang, Fang-Tzu ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 01期

关键词：

multi-walled carbon nanotubes; microwave digestion; direct methanol fuel cell; catalyst supports; polyol method;

D O I：

10.1016/j.elecom.2006.06.031

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

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.

引用

页码：159 / 163

页数：5

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