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Noncovalent immobilization of electrocatalysts for fuel production on carbon electrodes

Blakemore, James D. and Gupta, Ayush and Warren, Jeffrey J. and Brunschwig, Bruce S. and Gray, Harry B. (2014) Noncovalent immobilization of electrocatalysts for fuel production on carbon electrodes. In: 248th American Chemical Society National Meeting & Exposition, 10-14 August 2014, San Francisco, CA.

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Assembling systems for the conversion of solar light energy into chem. fuels (i.e., artificial photosynthesis) requires the development of strategies for functionalization of electrode surfaces with catalysts. We have demonstrated that mol. catalysts for fuel-forming reactions can be immobilized on graphitic carbon electrode surfaces via noncovalent interactions. Our general approach relies on a pyrene-appended bipyridine ligand that serves as the linker between the catalysts and the surface. Immobilization of a rhodium proton-redn. catalyst and a rhenium CO_2-redn. catalyst afford electrocatalytically active assemblies. XPS and electrochem. studies confirm catalyst immobilization. Redn. of the rhodium system in the presence of p-toluenesulfonic acid results in catalytic H_2 prodn., while redn. of the rhenium system in the presence of CO_2 results in catalytic CO prodn.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Website
Blakemore, James D.0000-0003-4172-7460
Warren, Jeffrey J.0000-0002-1747-3029
Brunschwig, Bruce S.0000-0002-6135-6727
Gray, Harry B.0000-0002-7937-7876
Additional Information:© 2014 American Chemical Society.
Record Number:CaltechAUTHORS:20140815-110039335
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48613
Deposited By: Tony Diaz
Deposited On:22 Aug 2014 06:22
Last Modified:27 Feb 2020 00:27

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