期刊
NANO ENERGY
卷 91, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106638
关键词
Plasmonic heterostructure; Photocatalysis; Surface engineering; Hydrogen evolution
类别
资金
- National Natural Science Foundation of China (NSFC) [22088102]
- National Natural Science Foundation of China [22090033, 22002163]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB 17000000]
- LiaoNing Revitalization Talents Program
- Youth Innovation Promotion Association of Chinese Academy of Sciences
Strong light-matter interaction and coupled catalytic surfaces in plasmonic photocatalysts provide a unique opportunity for solar-to-chemical energy conversion. Modulation of the interface/surface structure of Au/SrTiO3 changes charge separation and surface catalysis, where the catalysis process dominates the final photocatalytic performance. This work paves a way to design efficient plasmonic photocatalysts for solar-to-chemical energy conversion.
Strong light-matter interaction and coupled catalytic surface in plasmonic photocatalysts offer a unique opportunity for solar-to-chemical energy conversion. The interface/surface engineering is significant strategy to modulate the performance of plasmon-induced water splitting. This situation motivates the demand of a plasmonic heterostructure with well-defined atomic surface structures but identical bulk structure for plasmon-induced water splitting. In this work, using Au/SrTiO3 as a prototype, we found that altering the Ti-terminated and Sr- terminated surface of SrTiO3 gives rise to a remarkable difference in plasmon-induced hydrogen evolution activity. The efficiency of charge separation at the Sr-terminated surface is inferior compared with which at the Ti-terminated structure, while the reaction kinetics of Sr-terminated surfaces is faster than the counterpart, thus leading to a high plasmon-induced hydrogen evolution performance at Au/SrTiO3 with surfaces of Sr-termination. Modulation of the interface/surface structure of Au/SrTiO3 changes not only charge separation but surface catalysis in plasmonic photocatalysts, where the catalysis process dominates the final photocatalytic performance. This work paves a way to design efficient plasmonic photocatalysts for solar-to-chemical energy conversion.
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