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Combined Catalysis and Optical Screening for High Throughput Discovery of Solar Fuels Catalysts

Gregoire, J. M. and Xiang, C. and Mitrovic, S. and Liu, X. and Marcin, M. and Cornell, E. W. and Fan, J. and Jin, Jian (2013) Combined Catalysis and Optical Screening for High Throughput Discovery of Solar Fuels Catalysts. ECS Transactions, 50 (49). pp. 9-20. ISSN 1938-5862. doi:10.1149/05049.0009ecst.

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Considerable research and development efforts are being devoted to the efficient generation of solar fuels. A solar fuels device couples a solar photoabsorber with catalysts to convert solar energy to chemical energy via reactions such as oxygen evolution (water splitting). Widespread deployment of this technology hinges upon discovery of new materials through efforts such as the high throughput screening of oxygen evolution catalysts, as discussed in this manuscript. We derive an expression for the efficiency of the oxygen evolution catalyst that combines catalytic and optical properties. Using this hybrid efficiency, we screen 5456 samples in a (Fe-Co-Ni-Ti)O_x pseudo-quaternary catalyst library using automated, high throughput electrochemistry and optical experiments. The observed compositional trends in this catalyst efficiency lead to the discovery of a new high performance composition region.

Item Type:Article
Related URLs:
URLURL TypeDescription
Gregoire, J. M.0000-0002-2863-5265
Xiang, C.0000-0002-1698-6754
Mitrovic, S.0000-0001-8913-8505
Additional Information:© 2013 The Electrochemical Society. This material is based upon work performed by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub, as follows: The experiments and data interpretation were supported through the Office of Science of the U.S. Department of Energy under Award No. DE-SC0004993; J.F. acknowledges financial support from the National Science Foundation of China (21003106 and 20873122). The authors thank Mr. Lung-Sheng Lin for assistance in fabrication of the cell and Mr. William Fisher of Lawrence Berkeley National Laboratory for assistance in fabrication of the capillary for the reference electrode. The authors also thank Drs. Joel Haber, Eric McFarland, Nathan Lewis, Carl Koval and Joachim Lewerenz for helpful discussions.
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0004993
National Science Foundation of China21003106
National Science Foundation of China20873122
Issue or Number:49
Record Number:CaltechAUTHORS:20140609-083826658
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46140
Deposited By: Tony Diaz
Deposited On:09 Jun 2014 18:35
Last Modified:10 Nov 2021 17:21

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