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Integrated catalyst-electrodes for the production of solar fuels

Blakemore, James D. and Gupta, Ayush and Brunschwig, Bruce S. and Gray, Harry B. (2015) Integrated catalyst-electrodes for the production of solar fuels. Abstracts of Papers of the American Chemical Society, 249 . INOR-821. ISSN 0065-7727 . http://resolver.caltech.edu/CaltechAUTHORS:20150414-130714462

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Abstract

Immobilization of selective catalysts for fuel- forming reactions on (photo) electrode surfaces is an appealing route to structures for the generation of renewable fuel. Our recent work has focused on immobilization of mol. catalysts on graphitic carbon electrode surfaces via noncovalent interactions. The general approach relies on a pyrene- appended bipyridyl ligand (P) that serves as the linker between the catalysts and the surface. With this method, proton redn. to dihydrogen was catalyzed with an immobilized rhodium complex, [Cp*Rh(P) Cl] Cl, and CO_2 redn. to CO was catalyzed with a rhenium complex, Re(P) (CO)_3Cl. Spectroscopic studies of the [Cp*Rh] - and [Re(CO)_3] - functionalized electrodes are providing new insights into the activity of these assemblies. Catalysis continues over the timescale of hours, and in the case of hydrogen evolution, with estd. turnover frequency near 1 per s. We are also now extending work to earth- abundant systems, and have prepd. Mn(P) (CO)_3Br as a candidate CO_2 - redn. catalyst. Immobilization results in electroactive material, and electrocatalytic CO prodn. has been measured. Recent results will be presented, including spectroscopic characterization, electrochem. stability, and electrocatalytic CO_2 redn. with these catalysts.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://www.acs.org/content/acs/en/meetings/spring-2015.htmlOrganizationConference Website
ORCID:
AuthorORCID
Blakemore, James D.0000-0003-4172-7460
Brunschwig, Bruce S.0000-0002-6135-6727
Additional Information:© 2015 American Chemical Society.
Group:CCI Solar Fuels
Record Number:CaltechAUTHORS:20150414-130714462
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150414-130714462
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:56636
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Apr 2015 04:35
Last Modified:05 Sep 2017 22:20

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