Description

We report a direct one-step method to chemically graft metalloporphyrins to a visible-light-absorbing gallium phosphide semiconductor with the aim of constructing an integrated photocathode for light activating chemical transformations that include capturing, converting, and storing solar energy as fuels. Structural

We report a direct one-step method to chemically graft metalloporphyrins to a visible-light-absorbing gallium phosphide semiconductor with the aim of constructing an integrated photocathode for light activating chemical transformations that include capturing, converting, and storing solar energy as fuels. Structural characterization of the hybrid assemblies is achieved using surface-sensitive spectroscopic methods, and functional performance for photoinduced hydrogen production is demonstrated via three-electrode electrochemical testing combined with photoproduct analysis using gas chromatography. Measurements of the total per geometric area porphyrin surface loadings using a cobalt-porphyrin based assembly indicate a turnover frequency ≥3.9 H2 molecules per site per second, representing the highest reported to date for a molecular-catalyst-modified semiconductor photoelectrode operating at the H+/H2 equilibrium potential under 1-sun illumination.

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    Title
    • Metalloporphyrin-Modified Semiconductors for Solar Fuel Production
    Contributors
    Date Created
    2016-08-05
    Resource Type
  • Text
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    Identifier
    • Digital object identifier: 10.1039/C6SC02664H
    • Identifier Type
      International standard serial number
      Identifier Value
      2041-6520
    • Identifier Type
      International standard serial number
      Identifier Value
      2041-6539
    Note
    • The final version of this article, as published in Chemical Science, can be viewed online at: http://pubs.rsc.org/en/Content/ArticleLanding/2017/SC/C6SC02664H#!divAbstract

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    This is a suggested citation. Consult the appropriate style guide for specific citation guidelines.

    Khusnutdinova, D., Beiler, A. M., Wadsworth, B. L., Jacob, S. I., & Moore, G. F. (2017). Metalloporphyrin-modified semiconductors for solar fuel production. Chemical Science, 8(1), 253-259. doi:10.1039/c6sc02664h

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