Platinum nanoparticles supported on activated carbon fiber as catalyst for methanol oxidation

被引：91

作者：

Huang, Hui Xing ^{[1
]}

Chen, Shui Xia ^{[1
,2
]}

Yuan, Chan'e ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, OFCM Inst, PCFM Lab, Guangzhou 510275, Peoples R China

[2] Sun Yat Sen Univ, Inst Mat Sci, Guangzhou 510275, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2008年 / 175卷 / 01期

基金：

中国国家自然科学基金;

关键词：

activated carbon fiber support; platinum; electrocatalyst; methanol oxidation; fuel cell;

D O I：

10.1016/j.jpowsour.2007.08.107

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Activated carbon fiber (ACF) with high specific surface area has been used as support in the preparation of Pt nanoparticles electrocatalyst (Pt/ACF) for direct alcohol fuel cells. It is found that the Pt nanoparticles on ACF are highly and homogeneously dispersed with a narrow size distribution in the range of 1.5-3.5 nm with an average size of 2.4 nm. In comparison with the commercial E-TEK Pt/C catalyst, the Pt/ACF catalyst exhibits much higher catalytic activity for methanol, ethanol and isopropanol oxidation, which are about 2.4 times as high as that of the former. The Pt/ACF catalyst is observed to be significantly more stable during the constant current density polarization and continuous cyclic voltammetry in comparison with Pt/C catalyst. Both the uniform dispersion of Pt nanoparticles and strong interactions between Pt nanoparticles and ACF are of benefit to achieve the performance improvement of Pt/ACF catalyst. (c) 2007 Elsevier B.V All rights reserved.

引用

页码：166 / 174

页数：9

共 28 条

[1] Performance and lifetime analysis of the kW-class PEMFC stack [J].

Ahn, SY ;

Shin, SJ ;

Ha, HY ;

Hong, SA ;

Lee, YC ;

Lim, TW ;

Oh, IH .

JOURNAL OF POWER SOURCES, 2002, 106 (1-2) :295-303

[2] Graphite nanofibers as an electrode for fuel cell applications [J].

Bessel, CA ;

Laubernds, K ;

Rodriguez, NM ;

Baker, RTK .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (06) :1115-1118

[3] Spherical carbon capsules with hollow macroporous core and mesoporous shell structures as a highly efficient catalyst support in the direct methanol fuel cell [J].

Chai, GS ;

Yoon, SB ;

Kim, JH ;

Yu, JS .

CHEMICAL COMMUNICATIONS, 2004, (23) :2766-2767

[4] Carbon nanotubule membranes for electrochemical energy storage and production [J].

Che, GL ;

Lakshmi, BB ;

Fisher, ER ;

Martin, CR .

NATURE, 1998, 393 (6683) :346-349

[5]

CHEM SX, 2002, J REACT POLYM, V11, P108

[6] Structure and antibacterial activity of silver-supporting activated carbon fibers [J].

Chen, SX ;

Liu, JR ;

Zeng, HM .

JOURNAL OF MATERIALS SCIENCE, 2005, 40 (23) :6223-6231

[7] Improvement of the reduction capacity of activated carbon fiber [J].

Chen, SX ;

Zeng, HM .

CARBON, 2003, 41 (06) :1265-1271

[8] Automated method, based on micro-sequential injection, for the study of enzyme kinetics and inhibition [J].

Chen, Y ;

Carroll, AD ;

Scampavia, L ;

Ruzicka, J .

ANALYTICAL SCIENCES, 2006, 22 (01) :9-14

[9] High voltage stability of nanostructured thin film catalysts for PEM fuel cells [J].

Debe, Mark K. ;

Schmoeckel, Alison K. ;

Vernstrorn, George D. ;

Atanasoski, Radoslav .

JOURNAL OF POWER SOURCES, 2006, 161 (02) :1002-1011

[10] Development of carbon nanotube and carbon xerogel supported catalysts for the electro-oxidation of methanol in fuel cells [J].

Figueiredo, J. L. ;

Pereira, M. F. R. ;

Serp, P. ;

Kalck, P. ;

Samant, P. V. ;

Fernandes, J. B. .

CARBON, 2006, 44 (12) :2516-2522

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