Understanding the electrocatalysis of oxygen reduction on platinum and its alloys

被引：1016

作者：

Stephens, Ifan E. L. ^{[1
]}

Bondarenko, Alexander S. ^{[1
]}

Gronbjerg, Ulrik ^{[1
]}

Rossmeisl, Jan ^{[2
]}

Chorkendorff, Ib ^{[1
]}

机构：

[1] Tech Univ Denmark, Ctr Individual Nanoparticle Funct, Dept Phys, DK-2800 Lyngby, Denmark

[2] Tech Univ Denmark, Ctr Atom Scale Mat Design, Dept Phys, DK-2800 Lyngby, Denmark

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2012年 / 5卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

DENSITY-FUNCTIONAL THEORY; SINGLE-CRYSTAL SURFACES; SCANNING-TUNNELING-MICROSCOPY; EVANS-POLANYI RELATION; MEMBRANE FUEL-CELLS; DEALLOYED PT-CU; IN-SITU; PARTICLE-SIZE; CATHODE CATALYST; MONOLAYER ELECTROCATALYSTS;

D O I：

10.1039/c2ee03590a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The high cost of low temperature fuel cells is to a large part dictated by the high loading of Pt required to catalyse the oxygen reduction reaction (ORR). Arguably the most viable route to decrease the Pt loading, and to hence commercialise these devices, is to improve the ORR activity of Pt by alloying it with other metals. In this perspective paper we provide an overview of the fundamentals underlying the reduction of oxygen on platinum and its alloys. We also report the ORR activity of Pt5La for the first time, which shows a 3.5- to 4.5-fold improvement in activity over Pt in the range 0.9 to 0.87 V, respectively. We employ angle resolved X-ray photoelectron spectroscopy and density functional theory calculations to understand the activity of Pt5La.

引用

页码：6744 / 6762

页数：19

共 205 条

[1] Scaling properties of adsorption energies for hydrogen-containing molecules on transition-metal surfaces
Abild-Pedersen, F.
Greeley, J.
Studt, F.
Rossmeisl, J.
Munter, T. R.
Moses, P. G.
Skulason, E.
Bligaard, T.
Norskov, J. K.
[J]. PHYSICAL REVIEW LETTERS, 2007, 99 (01)
[2] Platinum monolayer fuel cell electrocatalysts
Adzic, R. R.
Zhang, J.
Sasaki, K.
Vukmirovic, M. B.
Shao, M.
Wang, J. X.
Nilekar, A. U.
Mavrikakis, M.
Valerio, J. A.
Uribe, F.
[J]. TOPICS IN CATALYSIS, 2007, 46 (3-4) : 249 - 262
[3] Ab initio determination of reversible potentials and activation energies for outer-sphere oxygen reduction to water and the reverse oxidation reaction
Anderson, AB
Albu, TV
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (50) : 11855 - 11863
[4] Adsorption-Driven Surface Segregation of the Less Reactive Alloy Component
Andersson, Klas J.
Calle-Vallejo, Federico
Rossmeisl, Jan
Chorkendorff, Lb
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (06) : 2404 - 2407
[5] ANGERSTE.H, 1973, J ELECTROANAL CHEM, V43, P9, DOI 10.1016/0368-1874(73)80226-6
[6] Reversibility and efficiency in electrocatalytic energy conversion and lessons from enzymes
Armstrong, Fraser A.
Hirst, Judy
[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2011, 108 (34) : 14049 - 14054
[7] Atkins P. W., 1997, PHYS CHEM
[8] Structure and Activity of Novel Pt Core-Shell Catalysts for the Oxygen Reduction Reaction
Ball, S.
Burton, S. L.
Fisher, J.
O'Malley, R.
Tessier, B.
Theobald, B. R. C.
Thompsett, D.
Zhou, W. P.
Su, D.
Zhu, Y.
Adzic, R.
[J]. PROTON EXCHANGE MEMBRANE FUEL CELLS 9, 2009, 25 (01): : 1023 - 1036
[9] Ball S.C., 2006, ECS T, V1, P141
[10] Ball S.C., 2007, ECS T, V11, P1267

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