Cited by 1,240Electrocatalysts for Energy ConversionMetalloenzymes and iron-sulfur proteinsCO2 Reduction Techniques and Catalysts

Catalysts for Hydrogen Evolution from the [NiFe] Hydrogenase to the Ni 2 P(001) Surface: The Importance of Ensemble Effect

Liu, Ping, Rodriguez, José A.·2005·Journal of the American Chemical Society

Abstract

Density functional theory (DFT) was employed to investigate the behavior of a series of catalysts used in the hydrogen evolution reaction (HER, 2H(+) + 2e(-) --> H(2)). The kinetics of the HER was studied on the [NiFe] hydrogenase, the [Ni(PS3*)(CO)](1)(-) and [Ni(PNP)(2)](2+) complexes, and surfaces such as Ni(111), Pt(111), or Ni(2)P(001). Our results show that the [NiFe] hydrogenase exhibits the highest activity toward the HER, followed by [Ni(PNP)(2)](2+) > Ni(2)P > [Ni(PS3*)(CO)](1)(-) > Pt > Ni in a decreasing sequence. The slow kinetics of the HER on the surfaces is due to the fact that the metal hollow sites bond hydrogen too strongly to allow the facile removal of H(2). In fact, the strong H-Ni interaction on Ni(2)P(001) can lead to poisoning of the highly active sites of the surface, which enhances the rate of the HER and makes it comparable to that of the [NiFe] hydrogenase. In contrast, the promotional effect of H-poisoning on the HER on Pt and Ni surfaces is relatively small. Our calculations suggest that among all of the systems investigated, Ni(2)P should be the best practical catalyst for the HER, combining the high thermostability of the surfaces and high catalytic activity of the [NiFe] hydrogenase. The good behavior of Ni(2)P(001) toward the HER is found to be associated with an ensemble effect, where the number of active Ni sites is decreased due to presence of P, which leads to moderate bonding of the intermediates and products with the surface. In additi…

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  1. Christmann, 1998, Frontiers in Electrochemistry, 1
  2. Volbeda A., 1996, J. Am. Chem. Soc., 118, 12989, 10.1021/ja962270g · DOI
  3. Pavlov M., 2004, Int. J. Quantum Chem., 56, 101
  4. Korkegain A., 2005, Nature, 308, 857

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Authors
Liu, P., & Rodriguez, J. A.
Affiliations
  • Brookhaven National Laboratory (US)
  • Contribution from the Department of Chemistry, Brookhaven National Laboratory, Building 555, Upton, New York 11973
Venue
Journal of the American Chemical Society
Published
2005-10-01
Volume
127
Issue
42
Pages
14871-14878
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W1996802576
Cited by
1,240
References
40
Citations by year
2026: 60 · 2025: 85 · 2024: 93 · 2023: 103 · 2022: 132 · 2021: 131 · 2020: 122 · 2019: 133 · 2018: 113 · 2017: 73 · 2016: 67 · 2015: 47 · 2014: 44 · 2013: 9 · 2012: 5
FWCI
4.50
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Metalloenzymes and iron-sulfur proteins
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
hydrogen evolution reaction, [NiFe] hydrogenase, Pt(111), Ni(111) surface, hydrogen poisoning, ensemble effect, catalytic activity, hydrogenase mimics, phosphine ligands
MeSH terms
Catalysis, Hydrogen, Hydrogenase, Kinetics, Models, Chemical, Nickel, Organometallic Compounds, Surface Properties

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