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Highly Stable Water Splitting on Oxynitride TaON Photoanode System under Visible Light Irradiation
Abstract
Highly stable photoelectrochemical water splitting is demonstrated for the first time on a tantalum oxynitride (TaON) photoanode under visible light irradiation. Highly dispersed CoO(x) nanoparticles on the TaON photoanode efficiently scavenge photogenerated holes and effectively suppress self-oxidative deactivation of the TaON surface, resulting in a stable photocurrent. The use of highly dispersed CoO(x) cocatalyst on TaON together with phosphate solutions significantly increased the photocurrent due to the formation of a cobalt/phosphate phase. This enabled us to stably split water into H(2) and O(2) under visible light irradiation at a relatively low applied bias (0.6 V vs Pt counter electrode).
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Abe, R. (2010) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2011.02.003 · Cited by 1,223
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Cited by
Roles of Cocatalysts in Photocatalysis and Photoelectrocatalysis
Yang, J., Wang, D., Han, H., & Li, C. (2013) · Accounts of Chemical Research · doi:10.1021/ar300227e · Cited by 2,848
Semiconducting materials for photoelectrochemical energy conversion
Sivula, K., & van de Krol, R. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2015.10 · Cited by 1,645
Tantalum-based semiconductors for solar water splitting
Zhang, P., Zhang, J., & Gong, J. (2014) · Chem. Soc. Rev. · doi:10.1039/c3cs60438a · Cited by 494
Water Splitting Progress in Tandem Devices: Moving Photolysis beyond Electrolysis
Zhang, K., Ma, M., Li, P., Wang, D. H., & Park, J. H. (2016) · Advanced Energy Materials · doi:10.1002/aenm.201600602 · Cited by 312
Metadata
- Authors
- Higashi, M., Domen, K., & Abe, R.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-04-12
- Volume
- 134
- Issue
- 16
- Pages
- 6968-6971
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2012177248
- Cited by
- 418
- References
- 1
- FWCI
- 15.43
- Type
- journal article
- Language
- en
- Open access
- closed
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- Higashi, M., Domen, K., & Abe, R. (2012). Highly Stable Water Splitting on Oxynitride TaON Photoanode System under Visible Light Irradiation. Journal of the American Chemical Society. https://doi.org/10.1021/ja302059g
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