Selective dissolution to synthesize densely populated Pt single atom catalyst

作     者：Weinan Yang Xiaoguang Zhao Ya Wang Rong Wang Wenhao Yang Yue Peng Junhua Li Weinan Yang;Xiaoguang Zhao;Ya Wang;Rong Wang;Wenhao Yang;Yue Peng;Junhua Li

作者机构：State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Sinopec Research Institute of Petroleum ProcessingBeijing 100083China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第1期

页      面：219-227页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0806[工学-冶金工程] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 0823[工学-交通运输工程] 

基　　金：This work was supported by the National Natural Science Foundation of China(No.21936005) the Natural Science Foundation of Beijing(No.8202028) China Petrochemical Corporation Funding(Sinopec Group,No.321094) 

主　　题：manganese oxide selective dissolution single-atom catalysis hydrogen spill-over propene oxidation 

摘      要：Single atom catalysts(SACs)have become one of research focuses in heterogeneous catalysis for their effective utilization of active metal atoms and unique properties in various catalytic ***,due to their high surface energy,noble metal single atoms like Pt tend to migrate and agglomerate to form larger clusters or nanoparticles,which makes it a challenge to fabricate noble metal SACs with high loading(5 wt.%).Furthermore,the decisive factors of loading maximum are still not ***,we reported a manganese oxide supported Pt SAC with a high loading of 5.6 wt.%synthesized by selective dissolution *** pre-stabilization of Pt by coordinated oxygen and the abundant surface defects of support are the determinants of high *** Pt SAC exhibited much better H_(2)spill-over and hydrocarbon oxidation abilities with lower adsorption and dissociation energies than the manganese oxide support because of its local electronic structure with less repulsion.