DICP OpenIR
Interface-controlled synthesis of CeO2(111) and CeO2(100) and their structural transition on Pt(111)
Zhang, Yi1,3; Feng, Wei2; Yang, Fan1; Bao, Xinhe1
Corresponding AuthorYang, Fan(fyang@dicp.ac.cn) ; Bao, Xinhe(xhbao@dicp.ac.cn)
KeywordInterfacial interaction Pt/CeOx catalyst CeO2(111) CeO2(100) c-Ce2O3(100)
Source PublicationCHINESE JOURNAL OF CATALYSIS
2019-02-01
ISSN0253-9837
DOI10.1016/S1872-2067(18)63171-7
Volume40Issue:2Pages:204-213
Funding ProjectNational Key R&D Program of China[2017YFB0602205] ; National Key R&D Program of China[2016YFA0202803] ; National Key R&D Program of China[2017YFA0303104] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17020200] ; National Natural Science Foundation of China[21473191] ; National Natural Science Foundation of China[91545204]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordWATER-GAS SHIFT ; METAL-SUPPORT INTERACTION ; SURFACE-STRUCTURE ; CO OXIDATION ; CERIA ; CATALYSTS ; GROWTH ; FILMS ; HYDROGENATION ; CEO2
AbstractCeria-based catalytic materials are known for their crystal-face-dependent catalytic properties. To obtain a molecular-level understanding of their surface chemistry, controlled synthesis of ceria with well-defined surface structures is required. We have thus studied the growth of CeOx nanostructures (NSs) and thin films on Pt(111). The strong metal-oxide interaction has often been invoked to explain catalytic processes over the Pt/CeOx catalysts. However, the Pt-CeOx interaction has not been understood at the atomic level. We show here that the interfacial interaction between Pt and ceria could indeed affect the surface structures of ceria, which could subsequently determine their catalytic chemistry. While ceria on Pt(111) typically exposes the CeO2(111) surface, we found that the structures of ceria layers with a thickness of three layers or less are highly dynamic and dependent on the annealing temperatures, owing to the electronic interaction between Pt and CeOx. A two-step kinetically limited growth procedure was used to prepare the ceria film that fully covers the Pt(111) substrate. For a ceria film of similar to 3-4 monolayer (ML) thickness on Pt(111), annealing in ultrahigh vacuum (UHV) at 1000 K results in a surface of CeO2 (100), stabilized by a c-Ce2O3(100) buffer layer. Further oxidation at 900 K transforms the surface of the CeO2(100) thin film into a hexagonal CeO2(111) surface. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Language英语
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS IDWOS:000457815900009
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166103
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang, Fan; Bao, Xinhe
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Sci & Technol Surface Phys & Chem Lab, Jiangyou 621908, Sichuan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yi,Feng, Wei,Yang, Fan,et al. Interface-controlled synthesis of CeO2(111) and CeO2(100) and their structural transition on Pt(111)[J]. CHINESE JOURNAL OF CATALYSIS,2019,40(2):204-213.
APA Zhang, Yi,Feng, Wei,Yang, Fan,&Bao, Xinhe.(2019).Interface-controlled synthesis of CeO2(111) and CeO2(100) and their structural transition on Pt(111).CHINESE JOURNAL OF CATALYSIS,40(2),204-213.
MLA Zhang, Yi,et al."Interface-controlled synthesis of CeO2(111) and CeO2(100) and their structural transition on Pt(111)".CHINESE JOURNAL OF CATALYSIS 40.2(2019):204-213.
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