期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 221, 期 -, 页码 77-85出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2017.08.085
关键词
Alloys; Composite materials; Photocatalysis; Polymeric materials; Surface plasmon resonance
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canadian Solar Inc.
- Canada Research Chairs Program
- Fonds Quebecois sur la Recherche en Nature et Technologies
- National Natural Science Foundation of China [NSFC 51402198]
- Natural Science Foundation of Liaoning Province [201602592]
- U.S. Army Research Office [W911NF-12-1-0407]
- Volkswagen Foundation (Germany)
- DOE [DE-AC02-06CH11357]
- NSERC Canada
- CIHR
- NRC
- University of Saskatchewan
Synergistic effect in alloys and plasmonic effect have both been explored for increasing the efficiency of water splitting. In depth understanding and comparison of their respective contributions in certain promising systems is highly desired for catalyst development, yet rarely investigated so far. We report herein our thorough investigations on a series of highly interesting nanocomposites composed of Pt, Au and C3N4 nanocomponents, which are designed to benefit from both synergistic and plasmonic effects. Detailed analyses led to an important conclusion that the contribution from the synergistic effect was at least 3.5 times that from the plasmonic effect in the best performing sample, Pt50Au50 alloy decorated C3N4. It showed remarkable turnover frequency of > 1.6 mmol h(-1) g(-1) at room temperature. Our work provides physical insights for catalyst development by rationally designing samples to compare long-known synergistic effect with recently emerging, attractive plasmonic effect and represents the first case study in the field.
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