A catalytic platinum-ruthenium-polyaniline electrode for methanol oxidation

被引：37
作者：
Kessler, T
Luna, AMC
机构：
[1] Univ Nacl La Plata, Inst Invest Fisicoquim Teor & Aplicados, Fac Ciencias Exactas, RA-1900 La Plata, Argentina
[2] Univ Nacl Ctr Prov Buenos Aires, Fac Ingn, RA-7400 Olavarria, Argentina
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2002年 / 32卷 / 07期
关键词：
carbon monoxide; methanol; platinum; polyaniline; ruthenium;
D O I：
10.1023/A:1020179803778
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Polyaniline films prepared on Au wires were employed as substrates to deposit Pt and/or Ru using a potential-programmed perturbation. Different compositions of Pt and Ru ions in acid electrolyte were employed to decorate the electrodes. The atomic percentages of Pt and Ru on Pani were determined by EDAX and particle size and distribution by SEM. The catalytic activity was tested for adsorbed CO and CH3OH electrooxidation. Nanoparticles of Pt-Ru with different Pt-Ru contents were obtained and characterized for each reaction.
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收藏
页码：825 / 830
页数：6
相关论文
共 27 条
[1]   ELECTROCHEMICAL PROPERTIES OF POLY-ORTHO-AMINOPHENOL MODIFIED ELECTRODES IN AQUEOUS ACID-SOLUTIONS [J].
BARBERO, C ;
SILBER, JJ ;
SERENO, L .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1990, 291 (1-2) :81-101
[2]   Enhancement in methanol oxidation by spontaneously deposited ruthenium on low-index platinum electrodes [J].
Chrzanowski, W ;
Kim, H ;
Wieckowski, A .
CATALYSIS LETTERS, 1998, 50 (1-2) :69-75
[3]   Ultrathin films of ruthenium on low index platinum single crystal surfaces: An electrochemical study [J].
Chrzanowski, W ;
Wieckowski, A .
LANGMUIR, 1997, 13 (22) :5974-5978
[4]   The electrooxidation of carbon monoxide on ruthenium modified Pt(110) [J].
Davies, JC ;
Hayden, BE ;
Pegg, DJ .
ELECTROCHIMICA ACTA, 1998, 44 (6-7) :1181-1190
[5]   CO adsorption and oxidation on bimetallic Pt/Ru(0001) surfaces - a combined STM and TPD/TPR study [J].
de Mongeot, FB ;
Scherer, M ;
Gleich, B ;
Kopatzki, E ;
Behm, RJ .
SURFACE SCIENCE, 1998, 411 (03) :249-262
[6]   CO adsorption and oxidation on a Pt(111) electrode modified by ruthenium deposition: An IR spectroscopic study [J].
Friedrich, KA ;
Geyzers, KP ;
Linke, U ;
Stimming, U ;
Stumper, J .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1996, 402 (1-2) :123-128
[7]   METHANOL ELECTROOXIDATION ON WELL-CHARACTERIZED PT-RN ALLOYS [J].
GASTEIGER, HA ;
MARKOVIC, N ;
ROSS, PN ;
CAIRNS, EJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (46) :12020-12029
[8]   LEIS AND AES ON SPUTTERED AND ANNEALED POLYCRYSTALLINE PT-RU BULK ALLOYS [J].
GASTEIGER, HA ;
ROSS, PN ;
CAIRNS, EJ .
SURFACE SCIENCE, 1993, 293 (1-2) :67-80
[9]  
GORBUNOVA KM, 1969, ELECTROCHEMISTRY ELE, P28
[10]   ELECTROCATALYTIC OXIDATION OF METHANOL AND ETHANOL - A COMPARISON OF PLATINUM-TIN AND PLATINUM RUTHENIUM CATALYST PARTICLES IN A CONDUCTING POLYANILINE MATRIX [J].
HABLE, CT ;
WRIGHTON, MS .
LANGMUIR, 1993, 9 (11) :3284-3290
123