Different photostability of BiVO4 in near-pH-neutral electrolytes
Abstract: Photoelectrochemical water splitting is a promising route to produce hydrogen from solar energy. However, corrosion of photoelectrodes remains a fundamental challenge for their implementation. Here, we reveal different dissolution behaviors of BiVO4 photoanode in pH-buffered borate, phosphate, and citrate (hole-scavenger) electrolytes, studied in operando employing an illuminated scanning flow cell. We demonstrate that decrease in photocurrents alone does not reflect the degradation of photoelectrodes. Changes in dissolution rates correlate to the evolution of surface chemistry and morphology. The correlative measurements on both sides of the liquid–semiconductor junction provide quantitative comparison and mechanistic insights into the degradation processes
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Notes
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ACS applied energy materials. - 3, 10 (2020) , 9523-9527, ISSN: 2574-0962
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
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Universität
- (when)
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2021
- Creator
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Zhang, Siyuan
Ahmet, Ibbi
Kim, Se-Ho
Kasian, Olga
Mingers, Andrea M.
Schnell, Patrick
Kölbach, Moritz
Lim, Joohyun
Fischer, Anna
Mayrhofer, Karl J. J.
Cherevko, Serhiy
Gault, Baptiste
Scheu, Christina
Krol, Roel van de
- DOI
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10.1021/acsaem.0c01904
- URN
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urn:nbn:de:bsz:25-freidok-1752000
- Rights
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Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:36 AM CEST
Data provider
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Associated
- Zhang, Siyuan
- Ahmet, Ibbi
- Kim, Se-Ho
- Kasian, Olga
- Mingers, Andrea M.
- Schnell, Patrick
- Kölbach, Moritz
- Lim, Joohyun
- Fischer, Anna
- Mayrhofer, Karl J. J.
- Cherevko, Serhiy
- Gault, Baptiste
- Scheu, Christina
- Krol, Roel van de
- Universität
Time of origin
- 2021