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The role of hydrogen coverage and location in 1,3-butadiene hydrogenation over Pt/SiO2

文献类型：期刊论文

作者Hu, Chaoquan1; Shao, Mingyuan1,2; Xiang, Maoqiao1; Li, Shaofu1; Xu, Shuanghao1
刊名REACTION CHEMISTRY & ENGINEERING
出版日期2020
卷号5期号:1页码:87-100
ISSN号2058-9883
DOI10.1039/c9re00371a
英文摘要Hydrogenation 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.
WOS关键词SELECTIVE HYDROGENATION ; STRUCTURE SENSITIVITY ; PLATINUM SURFACES ; RHODIUM CATALYSTS ; REACTION PATHWAYS ; TRANSITION ; BUTADIENE ; SINGLE ; CIS-2-BUTENE ; PALLADIUM
资助项目National 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研究方向Chemistry ; Engineering
语种英语
WOS记录号WOS:000507993700005
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China ; Center for Mesoscience, Institute of Process Engineering (IPE), Chinese Academy of Sciences (CAS)
源URL[http://ir.ipe.ac.cn/handle/122111/38843]  
专题中国科学院过程工程研究所
通讯作者Hu, Chaoquan
作者单位1.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
推荐引用方式
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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来源：过程工程研究所

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