文献类型：期刊文献

英文题名：Active sites on hydrogen evolution photocatalyst

作者：Xing, Jun[1];Jiang, Hai Bo[1];Chen, Jian Fu[2,3];Li, Yu Hang[1];Wu, Long[1];Yang, Shuang[1];Zheng, Li Rong[4];Wang, Hai Feng[2,3];Hu, P.[2,3,5];Zhao, Hui Jun[6];Yang, Hua Gui[1,6]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Ctr Computat Chem, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China;[4]Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China;[5]Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland;[6]Griffith Univ, Country Ctr Clean Environm & Energy, Nathan, Qld 4222, Australia

年份：2013

卷号：1

期号：48

起止页码：15258

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20134817022445);WOS:【SCI-EXPANDED(收录号:WOS:000327446900012)】；

基金：This work was financially supported by the National Natural Science Foundation of China (91022023, 21076076), the SRF for ROCS and SEM, the Programme for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, the Major Basic Research Programme of Science and Technology Commission of Shanghai Municipality (10JC1403200), the Fundamental Research Funds for the Central Universities (222201314035), the Australian Research Council's Future Fellowships (FT120100913) and the Shanghai Municipal Natural Science Foundation (12ZR1407500).

语种：英文

外文关键词：Hydrogen production - Platinum - Catalyst activity - Semiconductor materials - Metal nanoparticles - Solar power generation

摘要：Solar hydrogen production assisted with semiconductor materials is a promising way to provide alternative energy sources in the future. Such a photocatalytic reaction normally takes place on the active sites of the catalysts surface, and the identification of the active sites is crucial for understanding the photocatalytic reaction mechanism and further improving the photocatalytic efficiency. However, the active sites of model catalysts are still largely disputed because of their structural complexity. Conventionally, H-2 evolution from solar water splitting over Pt/TiO2 is widely deemed to take place on metallic Pt nanoparticles. Oppositely, we report through a combined experimental and theoretical approach, that metallic Pt nanoparticles have little contribution to the activity of photocatalytic H-2 evolution; the oxidized Pt species embedded on the TiO2 surface are the key active sites and primarily responsible for the activity of the hydrogen evolution Pt/TiO2 photocatalyst.