DICP OpenIR
Capping experiments reveal multiple surface active sites in CeO2 and their cooperative catalysis
Ren, Xiaoning1; Zhang, Zhixin2; Wang, Yehong2; Lu, Jianmin2; An, Jinghua2; Zhang, Jian2; Wang, Min1; Wang, Xinkui1; Luo, Yi1
Corresponding AuthorZhang, Zhixin(zhangzhixin@dicp.ac.cn)
Source PublicationRSC ADVANCES
2019-05-19
ISSN2046-2069
DOI10.1039/c9ra02353d
Volume9Issue:27Pages:15229-15237
Funding ProjectNational Natural Science Foundation of China[21706250] ; National Natural Science Foundation of China[21711530020] ; National Natural Science Foundation of China[21721004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17000000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17020300] ; Department of Science and Technology of Dalian[2017RQ114]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordCORE-SHELL NANOPARTICLES ; OXIDATIVE DEHYDROGENATION ; LOW-TEMPERATURE ; ACID-BASE ; CERIA ; METHANOL ; OXIDE ; IR ; ALCOHOLS ; PYRIDINE
AbstractUnderstanding of surface active sites (SAS) of CeO2 is crucial to its catalytic applications. In the present study, we have employed capping experiments, DFT calculations, and spectroscopic characterization to study pristine CeO2 catalyst. We find that multiple SAS coexist on the CeO2 surface: oxygen vacancies as redox sites and the coordinately unsaturated Ce cations near the oxygen vacancies and the neighboring oxygen ions as Lewis acid-base sites. Dimethylsulfoxide (DMSO), pyridine, and benzoic acid are utilized to cap the redox sites, Lewis acid sites, and base sites, respectively. Selective capping on the redox site does not have much effect on the acid-base catalysis, and vice versa, indicating the distinct surface proximity and independent catalysis of these SAS. We draw attention to a relationship between the well-known redox sites and the surface Lewis acid and Lewis base pairs on CeO2 surface, which are responsible for driving various heterogeneous catalytic reactions.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Department of Science and Technology of Dalian ; Department of Science and Technology of Dalian
WOS IDWOS:000470161800013
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171995
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhang, Zhixin
Affiliation1.Dalian Univ Technol, Sch Chem, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Ren, Xiaoning,Zhang, Zhixin,Wang, Yehong,et al. Capping experiments reveal multiple surface active sites in CeO2 and their cooperative catalysis[J]. RSC ADVANCES,2019,9(27):15229-15237.
APA Ren, Xiaoning.,Zhang, Zhixin.,Wang, Yehong.,Lu, Jianmin.,An, Jinghua.,...&Luo, Yi.(2019).Capping experiments reveal multiple surface active sites in CeO2 and their cooperative catalysis.RSC ADVANCES,9(27),15229-15237.
MLA Ren, Xiaoning,et al."Capping experiments reveal multiple surface active sites in CeO2 and their cooperative catalysis".RSC ADVANCES 9.27(2019):15229-15237.
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