期刊
SCIENCE
卷 339, 期 6127, 页码 1590-1593出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1231631
关键词
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资金
- U.S. Department of Energy, Office of Basic Energy Science, Division of Chemical Sciences [FG-02-05ER15686]
- National Science Foundation [CBET-0966700, CBET-1132777, CHE-1111770]
- DuPont corporation
- Camille Dreyfus Teacher-Scholar Award from the Camille & Henry Dreyfus Foundation
- Direct For Mathematical & Physical Scien [1111770] Funding Source: National Science Foundation
- Directorate For Engineering [1437601] Funding Source: National Science Foundation
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0966700] Funding Source: National Science Foundation
- Division Of Chemistry [1111770] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1362120] Funding Source: National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys [1437601] Funding Source: National Science Foundation
Oxidation of functioning copper has restricted its applicability as a catalyst for commercially important epoxidation of propylene to form propylene oxide. Here, we report that steady-state selectivity in propylene epoxidation on copper (Cu) nanoparticles increases sharply when the catalyst is illuminated with visible light. The selectivity increase is accompanied by light-induced reduction of the surface Cu atoms, which is brought about by photoexcitation of the localized surface plasmon resonance (LSPR) of Cu. We discuss multiple mechanisms by which Cu LSPR weakens the Cu-O bonds, reducing Cu2O.
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