CO tolerance of Pd-rich platinum palladium carbon-supported electrocatalysts - Proton exchange membrane fuel cell applications

被引：95

作者：

Papageorgopoulos, DC ^{[1
]}

Keijzer, M ^{[1
]}

Veldhuis, JBJ ^{[1
]}

de Bruijn, FA ^{[1
]}

机构：

[1] Energy Res Ctr Netherlands, Dept Clean Fossil Fuels, NL-1755 ZG Petten, Netherlands

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2002年 / 149卷 / 11期

关键词：

D O I：

10.1149/1.1510131

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The potential use of carbon-supported PtPdy, where y = 1-6, electrocatalysts as CO-tolerant anodes for proton exchange membrane fuel cell (PEMFC) applications has been investigated. Cyclic voltammetry experiments at 80degreesC, the operating temperature of the PEMFC, reveal that upon CO saturation, a lower fraction of surface sites is poisoned in the case of PtPdy compared to Pt, resulting in higher amounts of adsorbed hydrogen. Fuel cell tests demonstrated that the need for reasonable hydrogen oxidation currents, with and without CO necessitates the presence of Pt in the catalyst. As a CO-tolerant PEMFC anode catalyst, PtPdy attains improved performance compared to both Pt and PtRu. (C) 2002 The Electrochemical Society.

引用

页码：A1400 / A1404

页数：5

共 28 条

[1] Potential of zero total charge of palladium modified Pt(111) electrodes in perchloric acid solutions [J].

Alvarez, B ;

Climent, V ;

Rodes, A ;

Feliu, JM .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2001, 3 (16) :3269-3276

[2] Anion adsorption on Pd-Pt(111) electrodes in sulphuric acid solution [J].

Alvarez, B ;

Climent, V ;

Rodes, A ;

Feliu, JM .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 497 (1-2) :125-138

[3]

Auer A.F.E., 1999, U.S. Pat, Patent No. [6007934, 6,007,934]

[4] Formic acid oxidation on ultrathin Pd films on Au(hkl) and Pt(hkl) electrodes [J].

Baldauf, M ;

Kolb, DM .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (27) :11375-11381

[5] Anode materials for low-temperature fuel cells: A density functional theory study [J].

Christoffersen, E ;

Liu, P ;

Ruban, A ;

Skriver, HL ;

Norskov, JK .

JOURNAL OF CATALYSIS, 2001, 199 (01) :123-131

[6]

*DIV DEN NA INC, 2001, E TEK CAT

[7] PARTICLE-SIZE EFFECT OF CARBON-SUPPORTED PLATINUM CATALYSTS FOR THE ELECTROOXIDATION OF METHANOL [J].

FRELINK, T ;

VISSCHER, W ;

VANVEEN, JAR .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1995, 382 (1-2) :65-72

[8]

GERHARTZ W, 1992, ULMANNS ENCY IND C A, V21, P113

[9] Electrochemical behaviour of electrodeposited nanostructured palladium plus platinum films in 2 M H2SO4 [J].

Guerin, S ;

Attard, GS .

ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (10) :544-548

[10] Voltammograms of the single-crystal electrodes of palladium in aqueous sulfuric acid electrolyte:: Pd(S)-[n(111) x (111)] and Pd(S)-[n(100) x (111)] [J].

Hoshi, N ;

Kagaya, K ;

Hori, Y .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 485 (01) :55-60

← 1 2 3 →