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The role of hydrogen coverage and location in 1,3-butadiene hydrogenation over Pt/SiO2
Hu, Chaoquan1; Shao, Mingyuan1,2; Xiang, Maoqiao1; Li, Shaofu1; Xu, Shuanghao1
2020
Source PublicationREACTION CHEMISTRY & ENGINEERING
ISSN2058-9883
Volume5Issue:1Pages:87-100
AbstractHydrogenation of 1,3-butadiene over supported Pt particles has long been known as a structure sensitive reaction, yet the nature of this phenomenon has not been well understood. We have previously addressed the reaction pathway for 1,3-butadiene hydrogenation over similar to 22 nm Pt particles. In this study, the behaviors of SiO2 supported similar to 2.9 nm Pt particles towards 1,3-butadiene hydrogenation have been investigated with the aim of providing a fundamental explanation for the structure sensitivity of this reaction. Interestingly, it was found that the product distribution for the present catalyst towards 1,3-butadiene hydrogenation was sensitive to temperature. However, the evolution of 1,3-butadiene hydrogenation over the catalyst with temperature was not captured by in situ diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. The detected carbonaceous species on the Pt surface are more likely to be spectators rather than reaction intermediates for the formation of butenes and n-butane. To understand the behaviors of the catalyst, density functional theory (DFT) calculations were employed to explore the pathways for the formation of the products with low activation barriers. The results show that the coverage and the location of the hydrogen atom are the two key factors for the interpretation of the behavior of Pt particles towards 1,3-butadiene hydrogenation.
DOI10.1039/c9re00371a
Language英语
WOS KeywordSELECTIVE HYDROGENATION ; STRUCTURE SENSITIVITY ; PLATINUM SURFACES ; RHODIUM CATALYSTS ; REACTION PATHWAYS ; TRANSITION ; BUTADIENE ; SINGLE ; CIS-2-BUTENE ; PALLADIUM
Funding ProjectNational Natural Science Foundation of China[21606236] ; Center for Mesoscience, Institute of Process Engineering (IPE), Chinese Academy of Sciences (CAS)[COM2016A001] ; Center for Mesoscience, Institute of Process Engineering (IPE), Chinese Academy of Sciences (CAS)[MPCS-2017-A-02]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; Center for Mesoscience, Institute of Process Engineering (IPE), Chinese Academy of Sciences (CAS)
WOS IDWOS:000507993700005
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38844
Collection中国科学院过程工程研究所
Corresponding AuthorHu, Chaoquan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Hu, Chaoquan,Shao, Mingyuan,Xiang, Maoqiao,et al. The role of hydrogen coverage and location in 1,3-butadiene hydrogenation over Pt/SiO2[J]. REACTION CHEMISTRY & ENGINEERING,2020,5(1):87-100.
APA Hu, Chaoquan,Shao, Mingyuan,Xiang, Maoqiao,Li, Shaofu,&Xu, Shuanghao.(2020).The role of hydrogen coverage and location in 1,3-butadiene hydrogenation over Pt/SiO2.REACTION CHEMISTRY & ENGINEERING,5(1),87-100.
MLA Hu, Chaoquan,et al."The role of hydrogen coverage and location in 1,3-butadiene hydrogenation over Pt/SiO2".REACTION CHEMISTRY & ENGINEERING 5.1(2020):87-100.
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