Catalytic activity of platinum/tungsten oxide nanorod electrodes towards electro-oxidation of methanol

被引：82

作者：

Maiyalagan, T. ^{[1
]}

Viswanathan, B. ^{[1
]}

机构：

[1] Indian Inst Technol, Natl Ctr Catalysis Res, Dept Chem, Madras 600036, Tamil Nadu, India

来源：

JOURNAL OF POWER SOURCES | 2008年 / 175卷 / 02期

关键词：

platinum nanoparticles; tungsten oxide nanorods; template synthesis; methanol oxidation; electrocatalytic activity; stability;

D O I：

10.1016/j.jpowsour.2007.09.106

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：

Tungsten oxide (WO3) nanorods are synthesized using an Anodisc alumina membrane as a template and platinum nanoparticles are supported on the nanorods. The nanorods, serving as platinum catalyst supports, are characterized by electron microscopy and by electrochemical analysis. Methanol oxidation on the prepared electrodes is studied by means of cyclic voltammetry and chronopotentiometry. A film of Pt/WO3 nanorods on a glassy carbon electrode exhibits good electrocatalytic activity towards the oxidation of methanol. High electrocatalytic activities and good stabilities are attributed to a synergistic effect between Pt and WO3 that avoids poisoning of the electrodes. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：789 / 793

页数：5

共 23 条

[1] Babu RSA, 1998, STUD SURF SCI CATAL, V113, P787
[2] ANODIC-OXIDATION OF FORMIC-ACID ON ELECTRODEPOSITED PT/WO3 ELECTRODE AT ROOM-TEMPERATURE
CHEN, KY
SHEN, PK
TSEUNG, ACC
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (04) : L54 - L56
[3] NEW OXIDES IN THE WO3-MOO3 SYSTEM
FIGLARZ, M
[J]. PROGRESS IN SOLID STATE CHEMISTRY, 1989, 19 (01) : 1 - 46
[4] Electro-oxidation of methanol on Pt particles dispersed on RuO2 nanorods
Gu, Yan-Juan
Wong, Wing-Tak
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (09) : A1714 - A1718
[5] Abnormally fast mobility of CO at electrochemical interfaces
Gutierrez, AC
Pinheiro, ALN
Leiva, E
González, ER
Iwasita, T
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2003, 5 (07) : 539 - 543
[6] Nanoporous TiO2-supported bimetallic catalysts for methanol oxidation in acidic media
Hepel, Maria
Kumarihamy, Indee
Zhong, C. J.
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (09) : 1439 - 1444
[7] HIGH PERFORMANCE PLATINUM ACTIVATED TUNGSTEN OXIDE FUEL CELL ELECTRODES
HOBBS, BS
TSEUNG, ACC
[J]. NATURE, 1969, 222 (5193) : 556 - &
[8] PARTICLE-SIZE EFFECTS FOR OXYGEN REDUCTION ON HIGHLY DISPERSED PLATINUM IN ACID ELECTROLYTES
KINOSHITA, K
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (03) : 845 - 848
[9] Self-organized nanotubular TiO2 matrix as support for dispersed Pt/Ru nanoparticles:: Enhancement of the electrocatalytic oxidation of methanol
Macak, JM
Barczuk, PJ
Tsuchiya, H
Nowakowska, MZ
Ghicov, A
Chojak, M
Bauer, S
Virtanen, S
Kulesza, PJ
Schmuki, P
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2005, 7 (12) : 1417 - 1422
[10] Electro-oxidation of methanol on TiO2 nanotube supported platinum electrodes
Maiyalagan, T.
Viswanathan, B.
Varadaraju, U. V.
[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2006, 6 (07) : 2067 - 2071

← 1 2 3 →