Hydrogen evolution over bimetallic systems: Understanding the trends

被引:333
作者
Greeley, Jeff
Norskov, Jens K. [1 ]
Kibler, Ludwig A.
El-Aziz, Ahmed M.
Kolb, Dieter M.
机构
[1] Tech Univ Denmark, Ctr Atom Scale Mat Phys, NanoDTU, DK-2800 Lyngby, Denmark
[2] Univ Ulm, Abt Elektrochem, D-89069 Ulm, Germany
关键词
density functional calculations; electrochemistry; hydrogen; palladium; transition metals;
D O I
10.1002/cphc.200500663
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
Theory of evolution: Potential and solvent effects make the theoretical analysis of electrocatalytic phenomena more difficult than that for gas-phase catalysis. A simple model based on DFT gives a semiquantitative description of electrocatalytic reaction kinetics for the hydrogen evolution reaction. The figure shows the differential free energy of adsorption of hydrogen on overlayers of Pd on the surfaces of transition metal substrates. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
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页码:1032 / 1035
页数:4
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