Preparation of Pt-Au/carbon catalysts by a reduction method and their electrocatalytic activities for oxygen reduction reactions

被引：29

作者：

Jeong, So-Mi ^{[1
]}

Kim, Min Kyoung ^{[1
]}

Kim, Gil-Pyo ^{[2
]}

Kim, Tae Yun ^{[1
]}

Baeck, Sung-Hyeon ^{[1
]}

机构：

[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea

[2] Seoul Natl Univ, Dept Chem & Biol Engn, Seoul 151744, South Korea

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 198卷

基金：

新加坡国家研究基金会;

关键词：

Oxygen reduction reaction (ORR); Pt-Au/C catalysts; Proton exchange membrane fuel cell (PEMFC); FUEL-CELLS; CATHODE CATALYST; ALLOY CATALYSTS; STABILITY; NANOPARTICLES; PERFORMANCE; ETHANOL; SN;

D O I：

10.1016/j.cej.2012.04.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Platinum and gold supported on carbon catalysts with various Pt/Au ratios were prepared by a reduction method for use as the cathode in a proton exchange membrane fuel cell (PEMFC). The Pt/Au ratio was controlled by varying the concentration of each component in the solution, and the influence of the composition on the electrocatalytic activities during an oxygen reduction reaction (ORR) was investigated. The crystallinity of the synthesized materials was investigated by X-ray diffraction, and the oxidation state of both the platinum and gold was determined by X-ray photoelectron spectroscopy (XPS). The particle size of the Pt-Au was analyzed by TEM (transmission electron microscopy). The electrocatalytic activity for oxygen reduction was evaluated using a rotating disk electrode system. The results show that activity and stability were found to be strongly dependent on the electrode composition (Pt/Au ratio). Synthesized electrodes were also employed as cathodes in MEA, and the performance of a PEM (polymer electrolyte membrane) fuel cell was evaluated. (C) 2012 Published by Elsevier B.V.

引用

页码：435 / 439

页数：5

共 30 条

[1] Carbon supported Pt75M25 (M = Co, Ni) alloys as anode and cathode electrocatalysts for direct methanol fuel cells [J].

Antolini, E ;

Salgado, JRC ;

Gonzalez, ER .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 580 (01) :145-154

[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] DISTINCTION BETWEEN INTERMEDIATES PRODUCED IN MAIN AND SIDE ELECTRODIC REACTIONS [J].

DAMJANOVIC, A ;

GENSHAW, MA ;

BOCKRIS, JO .

JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (11) :4057-+

[4] Uptake of n-hexane, 1-butene, and toluene by Au/Pt bimetallic surfaces:: A tool for selective sensing of hydrocarbons under high-vacuum conditions [J].

Davis, David J. ;

Kyriakou, Georgios ;

Lambert, Richard M. .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (24) :11958-11961

[5]

Gottesfeld S., 1997, ADV ELECTROCHEMICAL, V5, P195, DOI [10.1002/9783527616794, DOI 10.1002/9783527616794.CH4]

[6] Size- and support-dependency in the catalysis of gold [J].

Haruta, M .

CATALYSIS TODAY, 1997, 36 (01) :153-166

[7]

Hogarth MP, 2002, PLATIN MET REV, V46, P146

[8] Activity-stability relationships of ordered and disordered alloy phases of Pt3Co electrocatalysts for the oxygen reduction reaction (ORR) [J].

Koh, Shirlaine ;

Toney, Michael F. ;

Strasser, Peter .

ELECTROCHIMICA ACTA, 2007, 52 (08) :2765-2774

[9] Exploration of unalloyed bimetallic Au-Pt/C nanoparticles for oxygen reduction reaction [J].

Kumar, S. Senthil ;

Phani, K. L. N. .

JOURNAL OF POWER SOURCES, 2009, 187 (01) :19-24

[10] New DMFC anode structure consisting of platinum nanowires deposited into a Nafion membrane [J].

Liang, Z. X. ;

Zhao, T. S. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (22) :8128-8134

← 1 2 3 →