The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.
Solar Water Oxidation by Composite Catalyst/α-Fe2O3 Photoanodes
Abstract
Electrodeposition of an amorphous cobalt catalyst layer over a high-surface-area alpha-Fe(2)O(3) photoanode causes a more than 350 mV cathodic shift in the onset potential for photoelectrochemical water oxidation using this anode and simulated solar irradiation. The catalyst layer is shown to deposit conformally onto the mesostructured alpha-Fe(2)O(3), leading to a large contact area at the interface between the two halves of the composite photoanode. Photoelectrochemical measurements show that the photocurrent generated from this composite photoanode still derives from alpha-Fe(2)O(3) excitation but is now accessible at an external bias several hundred millivolts below what is typically required for alpha-Fe(2)O(3) photoanodes alone, indicating a reduced external bias would be needed to drive overall water splitting. These results demonstrate modification of this prototypical photoanode material with a conformal layer of a competent electrocatalyst to separate the tasks of photon absorption and redox catalysis, a strategy that may have important and general ramifications for solar photoelectrochemical hydrogen generation.
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Cites
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Cobalt-phosphate (Co-Pi) catalyst modified Mo-doped BiVO4 photoelectrodes for solar water oxidation
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Polyoxometalate-Based Cobalt–Phosphate Molecular Catalysts for Visible Light-Driven Water Oxidation
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Hematite-based solar water splitting: challenges and opportunities
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Metadata
- Authors
- Zhong, D. K., Sun, J., Inumaru, H., & Gamelin, D. R.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-04-08
- Volume
- 131
- Issue
- 17
- Pages
- 6086-6087
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2009254856
- Cited by
- 517
- References
- 16
- FWCI
- 23.22
- Type
- journal article
- Language
- en
- Open access
- closed
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