Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 27, Pages 11276-11281Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja304075b
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Funding
- Consortium for Clean Coal Utilization (CCCU) at Washington University in St. Louis
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC 0001035]
- PARC
- National Science Foundation (NSF) [GOALI-0523656]
- Nano Research Facility (NRF) at Washington University in St. Louis
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0801753] Funding Source: National Science Foundation
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A facile development of highly efficient Pt-TiO2 nanostructured films via versatile gas-phase deposition methods is described. The films have a unique one-dimensional (ID) structure of TiO2 single crystals coated with ultrafine Pt nanoparticles (NPs, 0.5-2 nm) and exhibit extremely high CO2 photoreduction efficiency with selective formation of methane (the maximum CH4 yield of 1361 mu mol/g-cat/h). The fast electron-transfer rate in TiO2 single crystals and the efficient electron hole separation by the Pt NPs were the main reasons attributable for the enhancement, where the size of the Pt NPs and the unique 1D structure of TiO2 single crystals played an important role.
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