Pt, PtNi and PtCoNi film electrocatalysts prepared by chemical vapor deposition for the oxygen reduction reaction in 0.5 M KOH

被引：24

作者：

Garcia-Contreras, M. A. ^{[1
]}

Fernandez-Valverdea, S. M. ^{[1
]}

Vargas-Garcia, J. R. ^{[2
]}

机构：

[1] Inst Nacl Invest Nucl, Depto Quim, Mexico City 11801, DF, Mexico

[2] Inst Politecn Nacl, Depto Ing Met, Mexico City 07300, DF, Mexico

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷

关键词：

Electrode materials; Fuel cells; Nanostructured materials; Thin films; Vapor deposition; PLATINUM ALLOYS; CO; KINETICS; COBALT; ACTIVATION; IRIDIUM; CATHODE; GROWTH; NI; CR;

D O I：

10.1016/j.jallcom.2010.03.206

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：

Pt, PtNi and PtCoNi films were deposited by metal-organic chemical vapor deposition (MOCVD) upon glassy carbon rods. Physical characterization was performed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It was found that films consisted of crystalline and nanometric particles with more than one phase as a result of the interactions among reactants, intermediate and product species during the chemical vapor deposition process. The electrochemical set-up to test the films for the oxygen reduction reaction was a three-electrode cell where the reference electrode was Hg/HgO/0.5M KOH, the working electrodes were the films upon glassy carbon rods. The films were tested in 0.5 M KOH electrolyte; polarization curves were obtained by using the rotating disk electrode technique to evaluate the electrocatalytic activity of the prepared films. The kinetic parameters of Pt, PtNi and PtCoNi electrocatalysts were calculated. PtCoNi showed the best performance for the oxygen reduction reaction due to a synergetic effect of alloying Pt with transition metals. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：S425 / S428

页数：4

共 30 条

[1] Activation energies for oxygen reduction on platinum alloys: Theory and experiment [J].

Anderson, AB ;

Roques, J ;

Mukerjee, S ;

Murthi, VS ;

Markovic, NM ;

Stamenkovic, V .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (03) :1198-1203

[2] The stability of Pt-M (M = first row transition metal) alloy catalysts and its effect on the activity in low temperature fuel cells - A literature review and tests on a Pt-Co catalyst [J].

Antolini, Ermete ;

Salgado, Jose R. C. ;

Gonzalez, Ernesto R. .

JOURNAL OF POWER SOURCES, 2006, 160 (02) :957-968

[3]

Barbir F, 2005, SUSTAIN WORLD SER, P1

[4] Low-pressure chemical vapor deposition of Cu-Pd films: Alloy growth kinetics [J].

Bhaskaran, V ;

Atanasova, P ;

Hampden-Smith, MJ ;

Kodas, TT .

CHEMISTRY OF MATERIALS, 1997, 9 (12) :2822-2829

[5] Cobalt-palladium and cobalt-platinum bilayer films formed by chemical vapor deposition [J].

Choi, SWK ;

Puddephatt, RJ .

CHEMISTRY OF MATERIALS, 1997, 9 (05) :1191-1195

[6] Electrochemical reduction of oxygen on platinum nanoparticles in alkaline media [J].

Geniès, L ;

Faure, R ;

Durand, R .

ELECTROCHIMICA ACTA, 1998, 44 (8-9) :1317-1327

[7] Reactions of Cu(hfac)2 and Co2(CO)8 during chemical vapor deposition of copper-cobalt films [J].

Gu, S ;

Yao, XB ;

Hampden-Smith, MJ ;

Kodas, TT .

CHEMISTRY OF MATERIALS, 1998, 10 (08) :2145-2151

[8]

Hitchman M.L., 1993, Chemical Vapor Deposition

[9]

HOULDING VH, 1992, MATER RES SOC SYMP P, V260, P119, DOI 10.1557/PROC-260-119

[10] ELECTROLYTE EFFECTS ON OXYGEN REDUCTION KINETICS AT PLATINUM - A ROTATING-RING DISK ELECTRODE ANALYSIS [J].

HSUEH, KL ;

GONZALEZ, ER ;

SRINIVASAN, S .

ELECTROCHIMICA ACTA, 1983, 28 (05) :691-697

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