Non defect-stabilized thermally stable single-atom catalyst

Lang, Rui1; Xi, Wei2,3; Liu, Jin-Cheng4,5; Cui, Yi-Tao6; Li, Tianbo1,7; Lee, Adam Fraser8; Chen, Fang1; Chen, Yang1,7; Li, Lei9; Li, Lin1; Lin, Jian1; Miao, Shu1; Liu, Xiaoyan1; Wang, Ai-Qin1; Wang, Xiaodong1; Luo, Jun2,3; Qiao, Botao1,10; Li, Jun4,5,11; Zhang, Tao1

2019-01-16

10.1038/s41467-018-08136-3

Nature Communications   影响因子和分区

2041-1723

Surface-supported isolated atoms in single-atom catalysts (SACs) are usually stabilized by diverse defects. The fabrication of high-metal-loading and thermally stable SACs remains a formidable challenge due to the difficulty of creating high densities of underpinning stable defects. Here we report that isolated Pt atoms can be stabilized through a strong covalent metal-support interaction (CMSI) that is not associated with support defects, yielding a high-loading and thermally stable SAC by trapping either the already deposited Pt atoms or the PtO2 units vaporized from nanoparticles during high-temperature calcination. Experimental and computational modeling studies reveal that iron oxide reducibility is crucial to anchor isolated Pt atoms. The resulting high concentrations of single atoms enable specific activities far exceeding those of conventional nanoparticle catalysts. This non defect-stabilization strategy can be extended to non-reducible supports by simply doping with iron oxide, thus paving a new way for constructing high-loading SACs for diverse industrially important catalytic reactions.

SCI

英语

NI期刊 ; NI论文 ; ESI高被引

通讯

National Program for Thousand Young Talents of China, Tianjin Municipal Science and Technology Commission[15JCYBJC52600]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000455761000008

NATURE PUBLISHING GROUP

Web of Science

1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Tianjin Univ Technol, Inst New Energy Mat, Sch Mat, Ctr Electron Microscopy, Tianjin 300384, Peoples R China
3.Tianjin Univ Technol, Inst New Energy Mat, Sch Mat, Tianjin Key Lab Adv Funct Porous Mat, Tianjin 300384, Peoples R China
4.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
5.Tsinghua Univ, Minist Educ, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China
6.Univ Tokyo, Inst Solid State Phys, Synchrotron Radiat Lab, Laser & Synchrotron Res Ctr LASOR, 1-490-2 Kouto,Shingu Cho, Tatsuno, Hyogo 6795165, Japan
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.RMIT Univ, Sch Sci, Melbourne, Vic 3001, Australia
9.Univ Hyogo, Synchrotron Radiat Nanotechnol Ctr, 1-490-2 Kouto,Shingu Cho, Tatsuno, Hyogo 6795165, Japan
10.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
11.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

Lang, Rui,Xi, Wei,Liu, Jin-Cheng,et al. Non defect-stabilized thermally stable single-atom catalyst[J]. Nature Communications,2019,10.

Lang, Rui.,Xi, Wei.,Liu, Jin-Cheng.,Cui, Yi-Tao.,Li, Tianbo.,...&Zhang, Tao.(2019).Non defect-stabilized thermally stable single-atom catalyst.Nature Communications,10.

Lang, Rui,et al."Non defect-stabilized thermally stable single-atom catalyst".Nature Communications 10(2019).