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Mixed Metal Oxide Electrodes and the Chlorine Evolution Reaction

Dong, Heng and Yu, Weilai and Hoffmann, Michael R. (2021) Mixed Metal Oxide Electrodes and the Chlorine Evolution Reaction. Journal of Physical Chemistry C, 125 (38). pp. 20745-20761. ISSN 1932-7447. doi:10.1021/acs.jpcc.1c05671. https://resolver.caltech.edu/CaltechAUTHORS:20211011-225622309

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acs.jpcc.1c05671DOIArticle
ORCID:
AuthorORCID
Dong, Heng0000-0002-4168-7297
Yu, Weilai0000-0002-9420-0702
Hoffmann, Michael R.0000-0001-6495-1946
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.
Funders:
Funding AgencyGrant Number
Bill and Melinda Gates FoundationINV-003227
Subject Keywords:Oxides, Radiology, Anions, Electrodes, Selectivity
Issue or Number:38
DOI:10.1021/acs.jpcc.1c05671
Record Number:CaltechAUTHORS:20211011-225622309
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20211011-225622309
Official Citation:Mixed Metal Oxide Electrodes and the Chlorine Evolution Reaction. Heng Dong, Weilai Yu, and Michael R. Hoffmann. The Journal of Physical Chemistry C 2021 125 (38), 20745-20761 DOI: 10.1021/acs.jpcc.1c05671
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:111365
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:11 Oct 2021 23:15
Last Modified:11 Oct 2021 23:15

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