Bioinspired Molecular Co-Catalysts Bonded to a Silicon Photocathode for Solar Hydrogen Evolution Metadata

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Title

  • Main Title Bioinspired Molecular Co-Catalysts Bonded to a Silicon Photocathode for Solar Hydrogen Evolution

Creator

  • Author: Hou, Yidong
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: SLAC National Accelerator Laboratory
    Place of Publication: United States
    Additional Info: SLAC National Accelerator Laboratory (SLAC)

Date

  • Creation: 2011-11-08

Language

  • English

Description

  • Content Description: The production of fuels from sunlight represents one of the main challenges in the development of a sustainable energy system. Hydrogen is the simplest fuel to produce and although platinum and other noble metals are efficient catalysts for photoelectrochemical hydrogen evolution earth-abundant alternatives are needed for large-scale use. We show that bioinspired molecular clusters based on molybdenum and sulphur evolve hydrogen at rates comparable to that of platinum. The incomplete cubane-like clusters (Mo{sub 3}S{sub 4}) efficiently catalyse the evolution of hydrogen when coupled to a p-type Si semiconductor that harvests red photons in the solar spectrum. The current densities at the reversible potential match the requirement of a photoelectrochemical hydrogen production system with a solar-to-hydrogen efficiency in excess of 10% (ref. 16). The experimental observations are supported by density functional theory calculations of the Mo{sub 3}S{sub 4} clusters adsorbed on the hydrogen-terminated Si(100) surface, providing insights into the nature of the active site.
  • Physical Description: 434

Subject

  • Keyword: Hydrogen Production
  • Keyword: Chem, Matsci
  • Keyword: Hydrogen Fuels
  • STI Subject Categories: 08 Hydrogen
  • Keyword: Molybdenum
  • Keyword: Catalysts
  • Keyword: Sulfur Chem, Matsci
  • Keyword: Efficiency
  • Keyword: Molecular Clusters
  • Keyword: Photocathodes
  • Keyword: Density Functional Method
  • Keyword: Energy Systems
  • Keyword: Hydrogen
  • Keyword: Silicon

Source

  • Journal Name: Nature Materials; Journal Volume: 10; Journal Issue: 6

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: SLAC-PUB-14438
  • Grant Number: AC02-76SF00515
  • DOI: 10.1038/nmat3008
  • Office of Scientific & Technical Information Report Number: 1029141
  • Archival Resource Key: ark:/67531/metadc841418

Note

  • Display Note: http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-14438.html
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