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Photoassisted Electrolysis of Water by Irradiation of a Titanium Dioxide Electrode
Open accessAbstract
Ultraviolet irradiation (351, 364 nm) of the n-type semiconductor TiO 2 as the single crystal electrode of an aqueous electrochemical cell evolves O 2 at the TiO 2 electrode and H 2 at the Pt electrode. The gases are typically evolved in a two: one (H 2 :O 2 ) volume ratio. The photoassisted reaction seems to require applied voltages, but values as low as 0.25 V do allow the photoassisted electrolysis to proceed. Prolonged irradiation in either acid or base evolves the gaseous products in amounts which clearly demonstrate that the reaction is catalytic with respect to the TiO 2 . The wavelength response of the TiO 2 and the correlation of product yield and current are reported. The results support the claim that TiO 2 is a true photoassistance agent for the electrolysis of water. Minimum optical storage efficiencies of the order of 1% can be achieved by the production of H 2 .
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Citations
Cited by
Synthesis of a Carbon Nitride Structure for Visible‐Light Catalysis by Copolymerization
Zhang, J., Chen, X., Takanabe, K., Maeda, K., Domen, K., Epping, J. D., Fu, X., Antonietti, M., & Wang, X. (2010) · Angewandte Chemie International Edition · doi:10.1002/anie.200903886 · Cited by 1,436
Oxygen electrocatalysts for water electrolyzers and reversible fuel cells: status and perspective
Park, S., Shao, Y., Liu, J., & Wang, Y. (2012) · Energy & Environmental Science · doi:10.1039/c2ee22554a · Cited by 578
Wei, C., Lin, W. Y., Zainal, Z., Williams, N. E., Zhu, K., Kruzic, A. P., Smith, R. L., & Rajeshwar, K. (1994) · Environmental Science & Technology · doi:10.1021/es00054a027 · Cited by 521
Photodecomposition of water over Pt/TiO2 catalysts
Sato, S., & White, J. M. (1980) · Chemical Physics Letters · doi:10.1016/0009-2614(80)80246-6 · Cited by 468
Nozik, A. J. (1977) · Applied Physics Letters · doi:10.1063/1.89262 · Cited by 334
Metadata
- Authors
- Wrighton, M. S., Ginley, D. S., Wolczanski, P. T., Ellis, A. B., Morse, D. L., & Linz, A.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1975-04
- Volume
- 72
- Issue
- 4
- Pages
- 1518-1522
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1975725480
- Cited by
- 180
- References
- 0
- FWCI
- 24.68
- Type
- journal article
- Language
- en
- Open access
- green
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- Wrighton, M. S., Ginley, D. S., Wolczanski, P. T., Ellis, A. B., Morse, D. L., & Linz, A. (1975). Photoassisted Electrolysis of Water by Irradiation of a Titanium Dioxide Electrode. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.72.4.1518
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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