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Photoreduction of CO2 on p-type Silicon Using Re(bipy-But)(CO)3Cl: Photovoltages Exceeding 600 mV for the Selective Reduction of CO2 to CO
Abstract
Hydrogen-terminated p-type silicon was used as a photocathode for the selective photoreduction of CO 2 to CO in the presence of Re(bipy-Bu t )(CO) 3 Cl (bipy-Bu t = 4,4′-di- tert -butyl-2,2′-bipyridine) as an electrocatalyst. The reduction of CO 2 to CO on p-type silicon was achieved at a potential more than 600 mV lower than that required with a Pt electrode. A Faradaic efficiency of 97 ± 3% and an overall efficiency of 9.3% and 10% for the conversion of monochromatic and polychromatic light, respectively, to electricity were observed for the CO 2 photoreduction process. A short-circuit quantum efficiency of 61% for light-to-chemical energy conversion was observed for the conversion of CO 2 to CO.
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Metadata
- Authors
- Kumar, B., Smieja, J. M., & Kubiak, C. P.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-08-02
- Volume
- 114
- Issue
- 33
- Pages
- 14220-14223
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2077310850
- Cited by
- 181
- References
- 0
- FWCI
- 7.71
- Type
- journal article
- Language
- en
- Open access
- closed
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