Biornimetic hydrogen evolution:: MoS2 nanoparticles as catalyst for hydrogen evolution

被引：3513

作者：

Hinnemann, B ^{[1
]}

Moses, PG ^{[1
]}

Bonde, J ^{[1
]}

Jorgensen, KP ^{[1
]}

Nielsen, JH ^{[1
]}

Horch, S ^{[1
]}

Chorkendorff, I ^{[1
]}

Norskov, JK ^{[1
]}

机构：

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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 15期

关键词：

D O I：

10.1021/ja0504690

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The electrochemical hydrogen evolution reaction is catalyzed most effectively by the Pt group metals. As H2 is considered as a future energy carrier, the need for these catalysts will increase and alternatives to the scarce and expensive Pt group catalysts will be needed. We analyze the ability of different metal surfaces and of the enzymes nitrogenase and hydrogenase to catalyze the hydrogen evolution reaction and find a necessary criterion for high catalytic activity. The necessary criterion is that the binding free energy of atomic hydrogen to the catalyst is close to zero. The criterion enables us to search for new catalysts, and inspired by the nitrogenase active site, we find that MoS2 nanoparticles supported on graphite are a promising catalyst. They catalyze electrochemical hydrogen evolution at a moderate overpotential of 0.1-0.2 V. Copyright © 2005 American Chemical Society.

引用

页码：5308 / 5309

页数：2

共 23 条

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