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Multi-modal optimization of bismuth vanadate photoanodes via combinatorial alloying and hydrogen processing

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Abstract

Alloying transition metals, such as Mo, into BiVO4 has emerged as the primary mechanism for improving carrier transport in this photoanode for solar fuels production. The present work establishes the generality of improving photoelectrochemical performance through co-alloying with a transition metal electron donor and a structure-modulating rare earth. Further improvement for all such alloys is obtained by annealing the oxide materials in H2, ultimately producing photoanodes with above 3 mA cm−2 photocurrent density under AM 1.5G illumination, in the top tier of compact BiVO4 films.

Graphical abstract: Multi-modal optimization of bismuth vanadate photoanodes via combinatorial alloying and hydrogen processing

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Publication details

The article was received on 03 Sep 2018, accepted on 06 Dec 2018 and first published on 06 Dec 2018


Article type: Communication
DOI: 10.1039/C8CC07156J
Citation: Chem. Commun., 2019, Advance Article
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    Multi-modal optimization of bismuth vanadate photoanodes via combinatorial alloying and hydrogen processing

    P. F. Newhouse, D. Guevarra, M. Umehara, D. A. Boyd, L. Zhou, J. K. Cooper, J. A. Haber and J. M. Gregoire, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C8CC07156J

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