Published October 4, 1999
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Visible Region Photooxidation on TiO_2 with a Chromophore−Catalyst Molecular Assembly
Abstract
Nanocrystalline films of TiO_2 derivatized by adsorption of polypyridyl complexes of RuII have provided a basis for a family of solution photoelectrochemical devices. At the molecular level, a key feature in these devices is irreversible photoinjection into the TiO_2 conduction band following metal-to-ligand charge-transfer (MLCT) excitation giving Ru^(III). Reduction of Ru^(III) by I^- followed by I_3^- reduction at the anode completes the cell. It should be possible to exploit this basic scheme for the photoproduction of high-energy chemicals, and we report preliminary results on such an example based on an adsorbed chromophore−oxidant molecular assembly.
Additional Information
© 1999 American Chemical Society. Received April 30, 1999. Support of this work by the U.S. Army Research Office under Grant No. DAAH04-95-0144 and the National Science Foundation under Grant No. CHE-9705724 is gratefully acknowledged.Attached Files
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Additional details
- Alternative title
- Visible Region Photooxidation on TiO2 with a Chromophore−Catalyst Molecular Assembly
- Eprint ID
- 86637
- Resolver ID
- CaltechAUTHORS:20180525-135352967
- DAAH04-95-0144
- Army Research Office (ARO)
- CHE-9705724
- NSF
- Created
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2018-05-25Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field