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
收藏
页码：159 / 163
页数：5
相关论文
共 21 条
  • [11] Copper-platinum catalysts prepared and characterized by electrochemical methods for the reduction of nitrate and nitrite
    Kerkeni, S
    Lamy-Pitara, E
    Barbier, J
    [J]. CATALYSIS TODAY, 2002, 75 (1-4) : 35 - 42
  • [12] Homogeneous and controllable Pt particles deposited on multi-wall carbon nanotubes as cathode catalyst for direct methanol fuel cells
    Li, WZ
    Liang, CH
    Zhou, WJ
    Qiu, JS
    Li, HQ
    Sun, GQ
    Xin, Q
    [J]. CARBON, 2004, 42 (02) : 436 - 439
  • [13] Carbon nanotubes as support for cathode catalyst of a direct methanol fuel cell
    Li, WZ
    Liang, CH
    Qiu, JS
    Zhou, WJ
    Han, HM
    Wei, ZB
    Sun, GQ
    Xin, Q
    [J]. CARBON, 2002, 40 (05) : 791 - 794
  • [14] Method for supporting platinum on single-walled carbon nanotubes for a selective hydrogenation catalyst
    Lordi, V
    Yao, N
    Wei, J
    [J]. CHEMISTRY OF MATERIALS, 2001, 13 (03) : 733 - 737
  • [15] Efficient usage of highly dispersed Pt on carbon nanotubes for electrode catalysts of polymer electrolyte fuel cells
    Matsumoto, T
    Komatsu, T
    Nakano, H
    Arai, K
    Nagashima, Y
    Yoo, E
    Yamazaki, T
    Kijima, M
    Shimizu, H
    Takasawa, Y
    Nakamura, J
    [J]. CATALYSIS TODAY, 2004, 90 (3-4) : 277 - 281
  • [16] Shape-controlled synthesis of gold and silver nanoparticles
    Sun, YG
    Xia, YN
    [J]. SCIENCE, 2002, 298 (5601) : 2176 - 2179
  • [17] Sun YG, 2002, ADV MATER, V14, P833, DOI 10.1002/1521-4095(20020605)14:11<833::AID-ADMA833>3.0.CO
  • [18] 2-K
  • [19] Synthesis and characterization of platinum catalysts on muldwalled carbon nanotubes by intermittent microwave irradiation for fuel cell applications
    Tian, ZQ
    Jiang, SP
    Liang, YM
    Shen, PK
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (11) : 5343 - 5350
  • [20] Porous-microelectrode study on Pt/C catalysts for methanol electrooxidation
    Umeda, M
    Kokubo, M
    Mohamedi, M
    Uchida, I
    [J]. ELECTROCHIMICA ACTA, 2003, 48 (10) : 1367 - 1374
123