文献类型：期刊文献

英文题名：Thermal Emitting Strategy to Synthesize Atomically Dispersed Pt Metal Sites from Bulk Pt Metal

作者：Qu, Yunteng[1];Chen, Bingxu[3];Li, Zhijun[1];Duan, Xuezhi[3];Wang, Liguang[4];Lin, Yue[5,6];Yuan, Tongwei[7];Zhou, Fangyao[1];Hu, Yidong[1];Yang, Zhengkun[1];Zhao, Chanming[1];Wang, Jing[1];Zhao, Chao[1];Hu, Yanmin[1];Wu, Geng[1];Zhang, Qinghua[8];Xu, Qian[9];Liu, Binyao[11,12];Gao, Peng[11,12,13];You, Rui[1,5,6];Huang, Weixin[1,5,6];Zheng, Lirong[10];Gu, Lin[8];Wu, Yuen[1];Li, Yadong[2]

机构：[1]Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China;[2]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China;[3]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[4]City Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China;[5]Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China;[6]Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China;[7]Shanghai Univ, Dept Chem, Coll Sci, NEST Lab, Shanghai 200444, Peoples R China;[8]Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China;[9]Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China;[10]Inst High Energy Phys, Beijing 100049, Peoples R China;[11]Peking Univ, Acad Adv Interdisciplinary Studies, Sch Phys, Electron Microscopy Lab, Beijing 100871, Peoples R China;[12]Peking Univ, Acad Adv Interdisciplinary Studies, Sch Phys, Int Ctr Quantum Mat, Beijing 100871, Peoples R China;[13]Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

年份：2019

卷号：141

期号：11

起止页码：4505

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20191106639472);WOS:【SCI-EXPANDED(收录号:WOS:000462260400002)】；

基金：This work was supported by National Key R&D Program of China 2017YFA (0208300) and (0700104), the National Natural Science Foundation of China (21522107, 21671180), the State Key Laboratory of Organic Inorganic Composites (oic-201801007). We thank the photoemission endstations BL1W1B in Beijing Synchrotron Radiation Facility (BSRF), BL14W1 in Shanghai Synchrotron Radiation Facility (SSRF), and BL10B and BL11U in National Synchrotron Radiation Laboratory (NSRL) for the help in characterizations.

语种：英文

外文关键词：Platinum - Atoms - Ammonia

摘要：Developing a facile route to access active and well-defined single atom sites catalysts has been a major area of focus for single atoms catalysts (SACs). Herein, we demonstrate a simple approach to generate atomically dispersed platinum via a thermal emitting method using bulk Pt metal as a precursor, significantly simplifying synthesis routes and minimizing synthesis costs. The ammonia produced by pyrolysis of Dicyandiamide can coordinate with platinum atoms by strong coordination effect. Then, the volatile Pt(NH3)(x) can be anchored onto the surface of defective graphene. The as-prepared Pt SAs/DG exhibits high activity for the electrochemical hydrogen evolution reaction and selective oxidation of various organosilanes. This viable thermal emitting strategy can also be applied to other single metal atoms, for example, gold and palladium. Our findings provide an enabling and versatile platform for facile accessing SACs toward many industrial important reactions.