The Reactivity and Stability of Polyoxometalate Water Oxidation Electrocatalysts
1
Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
2
Institute of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Str. 17, 1090 Vienna, Austria
3
Helmholtz-Institute Ulm (HIU), Helmholtzstr. 11, 89081 Ulm, Germany
*
Authors to whom correspondence should be addressed.
Academic Editor: Mark Symes
Molecules 2020, 25(1), 157; https://doi.org/10.3390/molecules25010157
Received: 4 December 2019 / Revised: 20 December 2019 / Accepted: 27 December 2019 / Published: 31 December 2019
(This article belongs to the Special Issue Electrocatalytic Water Splitting)
This review describes major advances in the use of functionalized molecular metal oxides (polyoxometalates, POMs) as water oxidation catalysts under electrochemical conditions. The fundamentals of POM-based water oxidation are described, together with a brief overview of general approaches to designing POM water oxidation catalysts. Next, the use of POMs for homogeneous, solution-phase water oxidation is described together with a summary of theoretical studies shedding light on the POM-WOC mechanism. This is followed by a discussion of heterogenization of POMs on electrically conductive substrates for technologically more relevant application studies. The stability of POM water oxidation catalysts is discussed, using select examples where detailed data is already available. The review finishes with an outlook on future perspectives and emerging themes in electrocatalytic polyoxometalate-based water oxidation research.
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Keywords:
polyoxometalate; water oxidation catalysis; oxygen evolution reaction; self-assembly; electrocatalysis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Gao, D.; Trentin, I.; Schwiedrzik, L.; González, L.; Streb, C. The Reactivity and Stability of Polyoxometalate Water Oxidation Electrocatalysts. Molecules 2020, 25, 157. https://doi.org/10.3390/molecules25010157
AMA Style
Gao D, Trentin I, Schwiedrzik L, González L, Streb C. The Reactivity and Stability of Polyoxometalate Water Oxidation Electrocatalysts. Molecules. 2020; 25(1):157. https://doi.org/10.3390/molecules25010157
Chicago/Turabian StyleGao, Dandan; Trentin, Ivan; Schwiedrzik, Ludwig; González, Leticia; Streb, Carsten. 2020. "The Reactivity and Stability of Polyoxometalate Water Oxidation Electrocatalysts" Molecules 25, no. 1: 157. https://doi.org/10.3390/molecules25010157
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