Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 21, Pages 6822-6828Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b02532
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Funding
- NSFC [21471141, 21573211, 21421063, 11434017]
- Recruitment Program of Global Experts
- CAS Hundred Talent Program
- Hefei Science Center of the CAS [2015HSC-UP009, 2015HSC-UE008]
- Strategic Priority Research Program of the CAS [XDB01020000]
- Fundamental Research Funds for the Central Universities [WK2060190025, WK2340000063]
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Harnessing surface plasmon- of metal) nanostructuresto ptomote catalytic organic synthesis holds great promise in, solar-to-Chemical energy Conversion: High conversion 'efficiency relies not only on broadening the absorption spectrum but on coupling the harvested,energy into chemical reactions. Such coupling undergoes hot electron transfer and-photothermal,conversion during the decay of surface plasmon;, however, the two plasmonic effects are unfortunately entangleckmaking-Aeir inditdual roles still under debate, Here, we report that in a,model system of bituetallic Au-Pd core shell nanostructures the two effects- can be.disentangled through tailoring the,shell thickness a(atomictevel precision. As demonsttated by our ultrafast absorption spectroscoPy. characterizations, the achieved tunability of the two effects in a triode' reaction of Pd-catalyzed organic hydrogenation offers a knob for enhancing energy Coupling. In addition, the two intrinsic plasmonic modes at 400--/00 ancI700-100() nm in the bar-shaped nanostructures allow for utilizing photons td-a-large extent in full Solar spectrum. This work establishes a paradigmatic guidance toward designihg plasmonic-catalytic nanomaterials for enhanced solar-to-chemical energy conversion.
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