The effect of the Pt deposition method and the support on Pt dispersion on carbon nanotubes

被引：105

作者：

Li, Xuguang ^{[1
]}

Hsing, I.-Ming ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 25期

关键词：

carbon nanotubes; Pt/CNTs; Pt dispersion; electrode structure; fuel cell;

D O I：

10.1016/j.electacta.2006.01.046

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Carbon nanotube supported platinum (Pt/CNTs) catalysts prepared by different Pt deposition methods and on different CNT supports were studied. Colloidal based methods were demonstrated to be more effective than other wet chemistry deposition methods (e.g., impregnation and precipitation) for the preparation of highly dispersed Pt/CNTs. Pt catalyst supported on CNTs with a dispersion uniformity comparable to that supported on carbon powder was achieved using a zwitterionic surfactant 3-(N,N-dimethyldodecylammonio) propanesulfonate (SB12) as stabilizer in a monitored pH environment. It was experimentally observed that oxygen-containing surface functionalities on CNTs can greatly affect the catalyst particle dispersion by manipulating Pt anchoring and/or nucleating sites. Furthermore, it was revealed that the performance of Pt/CNTs based fuel cell is strongly dependent on the electrode fabrication method. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：5250 / 5258

页数：9

共 50 条

[31] Reduction of Pt usage in fuel cell electrocatalysts with carbon nanotube electrodes [J].

Matsumoto, T ;

Komatsu, T ;

Arai, K ;

Yamazaki, T ;

Kijima, M ;

Shimizu, H ;

Takasawa, Y ;

Nakamura, J .

CHEMICAL COMMUNICATIONS, 2004, (07) :840-841

[32] Effect of particle size on the electrocatalysis by carbon-supported Pt electrocatalysts: an in situ XAS investigation [J].

Mukerjee, S ;

McBreen, J .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 448 (02) :163-171

[33]

Natarajan D, 2003, J POWER SOURCES, V115, P66, DOI 10.1016/S0378-7753(02)00624-9

[34] APPLICATION OF CARBON NANOTUBES AS SUPPORTS IN HETEROGENEOUS CATALYSIS [J].

PLANEIX, JM ;

COUSTEL, N ;

COQ, B ;

BROTONS, V ;

KUMBHAR, PS ;

DUTARTRE, R ;

GENESTE, P ;

BERNIER, P ;

AJAYAN, PM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (17) :7935-7936

[35] Carbon nanotubes for power applications [J].

Raffaelle, RP ;

Landi, BJ ;

Harris, JD ;

Bailey, SG ;

Hepp, AF .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 116 (03) :233-243

[36] Carbon nanotubes generated from template carbonization of polyphenyl acetylene as the support for electrooxidation of methanol [J].

Rajesh, B ;

Thampi, KR ;

Bonard, JM ;

Xanthopoulos, N ;

Mathieu, HJ ;

Viswanathan, B .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (12) :2701-2708

[37]

Rodriguez-Reinoso F., 1995, POROSITY CARBONS, P253

[38] The decoration of carbon nanotubes by metal nanoparticles [J].

Satishkumar, BC ;

Vogl, EM ;

Govindaraj, A ;

Rao, CNR .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (12) :3173-3176

[39] Carbon nanotubes and nanofibers in catalysis [J].

Serp, P ;

Corrias, M ;

Kalck, P .

APPLIED CATALYSIS A-GENERAL, 2003, 253 (02) :337-358

[40] Ultrafine platinum nanoparticles uniformly dispersed on arrayed CNx nanotubes with high electrochemical activity [J].

Sun, CL ;

Chen, LC ;

Su, MC ;

Hong, LS ;

Chyan, O ;

Hsu, CY ;

Chen, KH ;

Chang, TF ;

Chang, L .

CHEMISTRY OF MATERIALS, 2005, 17 (14) :3749-3753

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