Mixed Metal Oxide Electrodes and the Chlorine Evolution Reaction
- Creators
- Dong, Heng
- Yu, Weilai
- Hoffmann, Michael R.
Abstract
The chlorine evolution reaction (CER) has practical applications in the chlor-alkali industry and electrochemical wastewater treatment. Efficient, stable, and cost-effective electrodes are critical for energy efficient chlorine production, water disinfection, and wastewater treatment. These practical applications require an in-depth understanding of the catalytic mechanism of chlorine evolution, the need for lower-cost electrode materials, and improvements in electrode design at the atomic scale. Herein, we examine factors controlling activity, selectivity, and stability of alternative CER electrodes and provide mechanistic insights for achieving improvements in performance and durability. Steric effects of crystal structure and intermetallic electron polarization provide insights for understanding and tuning the electrode activity and selectivity. Additional insight into electrode deactivation mechanisms was gained by employing model material systems under controlled conditions. Herein, we explore viable strategies for the development of more efficient noble-metal-free CER electrodes for use in a variety of practical applications.
Additional Information
© 2021 American Chemical Society. Received: June 27, 2021; Published: September 20, 2021. Published as part of The Journal of Physical Chemistry virtual special issue "125 Years of The Journal of Physical Chemistry". The authors acknowledge generous financial support from Bill and Melinda Gates Foundation (Grant INV003227). The authors declare no competing financial interest.Additional details
- Eprint ID
- 111365
- Resolver ID
- CaltechAUTHORS:20211011-225622309
- INV-003227
- Bill and Melinda Gates Foundation
- Created
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2021-10-11Created from EPrint's datestamp field
- Updated
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2021-10-11Created from EPrint's last_modified field