Biomimetic Hydrogen Evolution: MoS2 Nanoparticles as Catalyst for Hydrogen Evolution
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 d...
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| Veröffentlicht in: | Journal of the American Chemical Society 2005-04, Vol.127 (15), p.5308-5309 |
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| container_issue | 15 |
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| container_title | Journal of the American Chemical Society |
| container_volume | 127 |
| creator | Hinnemann, Berit Moses, Poul Georg Bonde, Jacob Jørgensen, Kristina P Nielsen, Jane H Horch, Sebastian Chorkendorff, Ib Nørskov, Jens K |
| description | 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. |
| doi_str_mv | 10.1021/ja0504690 |
| format | Article |
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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. 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Am. Chem. Soc</addtitle><description>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. 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Am. Chem. Soc</addtitle><date>2005-04-20</date><risdate>2005</risdate><volume>127</volume><issue>15</issue><spage>5308</spage><epage>5309</epage><pages>5308-5309</pages><issn>0002-7863</issn><eissn>1520-5126</eissn><coden>JACSAT</coden><abstract>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.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>15826154</pmid><doi>10.1021/ja0504690</doi><tpages>2</tpages></addata></record> |
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| source | ACS Publications; MEDLINE |
| subjects | Catalysis Chemistry Disulfides - chemistry Electrochemistry Exact sciences and technology General and physical chemistry Hydrogen - chemistry Kinetics and mechanism of reactions Models, Molecular Molybdenum - chemistry Nanostructures - chemistry Nitrogenase - chemistry Nitrogenase - metabolism Thermodynamics |
| title | Biomimetic Hydrogen Evolution: MoS2 Nanoparticles as Catalyst for Hydrogen Evolution |
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