期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 2, 页码 948-957出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja511719g
关键词
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资金
- Innovative Project for Advanced Instruments, Renovation Center of Instruments for Science Education and Technology, Osaka University
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of the Japanese Government [25220806]
- JSPS [P13027]
- Grants-in-Aid for Scientific Research [13F03027] Funding Source: KAKEN
Plasmonic bimetal nanostructures can be used to drive the conventional catalytic reactions efficiently at low temperature with the utilization of solar energy. This work developed Pd-modified Au nanorods, which work as the light absorber and the catalytically active site simultaneously, and exhibit efficient plasmon-enhanced catalytic formic acid dehydrogenation even when below room temperature (5 degrees C). Plasmon-induced interface interaction and photoreaction dynamics of individual nanorods were investigated by single-particle photoluminescence measurement, and a complete quenching phenomenon at the LSPR region was observed for the first time. More importantly, the spatial distribution of the SPR-induced enhancement, analyzed by the finite difference time domain (FDTD) simulation, shows that only tip-coated Pd can be affected for the occurrence of plasmon resonance energy transfer. This finding provides a route to decrease the amount of Pd species by the selective deposition only at the field-enhanced sites.
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