Hydrogen Evolution and Hydrogen Oxidation on Palladium Bismuth Alloys

被引：37

作者：

Al-Odail, Faisal A. ^{[1
]}

Anastasopoulos, Alexandros ^{[1
]}

Hayden, Brian E. ^{[1
]}

机构：

[1] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

来源：

TOPICS IN CATALYSIS | 2011年 / 54卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

Electrocatalysis; Alloys; Hydrogen evolution reaction; Hydrogen oxidation reaction; Polymer electrolyte membrane fuel cells; HIGH-THROUGHPUT SYNTHESIS; PD-BI ALLOYS; SELECTIVE OXIDATION; METAL-ALLOYS; FORMIC-ACID; FUEL-CELLS; CATALYSTS; ELECTROOXIDATION; TRANSITION; ELECTRODES;

D O I：

10.1007/s11244-011-9650-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Thin film alloys of PdBi have been synthesised using a high throughput physical vapour deposition method to produce compositional gradients of PdBi alloys. XPS indicates that for the non-equilibrated thin films, the surface composition is the same as the bulk, and core level shifts reflect the inter-metallic interaction between the component metals. Hydrogen absorption is hindered in the PdBi alloys, and at a composition of 70 at.% bismuth, the alpha Bi2Pd bulk alloy phase is identified in XRD. This phase exhibits a maximum in the hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR) electrocatalytic activity. The increased activity of the alloy can be understood in terms of the Pd d-band density of states, and a concomitant increase in the binding energy of hydrogen. There is a strong correlation between the HER and HOR activity as a function of composition across the complete range of alloys. The potential of using the alpha Bi2Pd bulk inter-metallic phase at the anode of PEM fuel cells is briefly discussed.

引用

页码：77 / 82

页数：6

共 33 条

[1] Bismuth-promoted palladium catalysts for the selective oxidation of glyoxal into glyoxalic acid [J].

Alardin, F ;

Ruiz, P ;

Delmon, B ;

Devillers, M .

APPLIED CATALYSIS A-GENERAL, 2001, 215 (1-2) :125-136

[2] Pd catalysed hexyne hydrogenation modified by Bi and by Pb [J].

Anderson, James A. ;

Mellor, Jane ;

Wells, Richard P. K. .

JOURNAL OF CATALYSIS, 2009, 261 (02) :208-216

[3]

[Anonymous], 1992, ASM Handbook, VIII

[4] Palladium in fuel cell catalysis [J].

Antolini, Ermete .

ENERGY & ENVIRONMENTAL SCIENCE, 2009, 2 (09) :915-931

[5] The preparation and characterisation of H1-e palladium films with a regular hexagonal nanostructure formed by electrochemical deposition from lyotropic liquid crystalline phases [J].

Bartlett, PN ;

Gollas, B ;

Guerin, S ;

Marwan, J .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2002, 4 (15) :3835-3842

[6]

Briggs D., 1983, Practical Surface Analysis: by Auger and X-ray Photoelectron Spectroscopy

[7] 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

[8] Fabrication and characteristics of Pd nanoparticles/nanofilms on ceramics toward catalytic electrodes [J].

Chu, Song-Zhu ;

Kawamura, Hirotaka ;

Mori, Masashi .

ELECTROCHIMICA ACTA, 2007, 53 (01) :92-99

[9] Structure and electrical properties of bismuth thin films prepared by flash evaporation method [J].

Duan, Xingkai ;

Yang, Junyou ;

Zhu, Wen ;

Fan, Xi'an ;

Xiao, Chengjing .

MATERIALS LETTERS, 2007, 61 (22) :4341-4343

[10] CORE-LEVEL BINDING-ENERGY SHIFTS AT SURFACES AND IN SOLIDS [J].

Egelhoff, W. F., Jr. .

SURFACE SCIENCE REPORTS, 1987, 6 (6-8) :253-415

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