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Molecular proton-reduction catalysis at silicon semiconductor surfaces

Blakemore, James D. and Lattimer, Judith R. and Brunschwig, Bruce S. and Lewis, Nathan S. and Gray, Harry B. (2013) Molecular proton-reduction catalysis at silicon semiconductor surfaces. In: 245th ACS National Meeting & Exposition, Abstracts of Papers, April 7-11, 2013, New Orleans, LA.

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Driving catalysis at semiconductor:liq. junctions with light enables the efficient conversion and storage of solar energy in chem. fuels. Hydrogen evolution from water is one possible path to fuel, as there are known heterogeneous and homogeneous catalysts for proton redn. Homogeneous catalysts show the greatest promise for clarifying both (1) key mechanistic aspects of the hydrogen-evolution reaction at the surface and (2) energetic considerations of the semiconductor band structure. Along this line, we are studying a family of rhodium complexes as model catalysts for hydrogen evolution at semiconductor:liq. junctions. Both diffusional and silicon surface-attached systems have been developed, and will be compared. This approach has yielded new information concerning the ambiguities of homogeneous vs. Heterogeneous catalysis, as well as the possible catalytic mechanism(s) of the surface-attached species.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription website
Blakemore, James D.0000-0003-4172-7460
Brunschwig, Bruce S.0000-0002-6135-6727
Lewis, Nathan S.0000-0001-5245-0538
Gray, Harry B.0000-0002-7937-7876
Additional Information:© 2013 American Chemical Society.
Record Number:CaltechAUTHORS:20130716-130435999
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39393
Deposited By: Tony Diaz
Deposited On:19 Aug 2013 20:48
Last Modified:22 Nov 2019 09:58

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