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Dual-component gas pretreatment for Au/TS-1: Enhanced propylene epoxidation with oxygen and hydrogen

文献类型：期刊论文

作者Ren, Yue-gong1,2; Huang, Jiahui2; Lv, Qiang2; Xie, Yan2; Lu, An-Hui1; Haruta, Masatake2,3
刊名APPLIED CATALYSIS A-GENERAL
出版日期2019-08-25
卷号584页码:8
关键词catalysis Au/TS-1 Propylene epoxidation Pretreatment H-2-C3H6
ISSN号0926-860X
DOI10.1016/j.apcata.2019.117172
通讯作者Huang, Jiahui(jiahuihuang@dicp.ac.cn) ; Lu, An-Hui(anhuilu@dlut.edu.cn)
英文摘要Direct epoxidation of propylene (C3H6) with oxygen (O-2) and hydrogen (H-2) over gold catalysts is an efficient and environmentally benign process to produce propylene oxide (PO). Herein, Au/TS-1 was used to catalyze propylene epoxidation, and its pretreatment effect under different gas atmospheres was carefully investigated. The results showed that Au/TS-1 pretreated with H-2-C3H6 exhibited much better catalytic performance than that pretreated with single-component gas of H-2, O-2 and C3H6, dual-component gas of H-2-O-2 and O-2-C3H6, and feed gas of H-2 + O-2 + C3H6. UV/vis/NIR spectra, O-2-TPO-MS and Si-29 NMR indicated that the pretreatment of Au/TS-1 using H-2-C3H6 led to hydrophobic catalyst surfaces functionalized by hydrocarbon species, consequently facilitating the C3H6 adsorption and PO desorption. HAADF-STEM showed that H-2-C3H6 pretreatment caused the formation of small Au nanoparticles (NPs) with an average size of (similar to)2.1 nm. The common effect of small Au NPs and hydrophobic surface was speculated to be responsible for the excellent catalytic performance of Au/TS-1 pretreated with H-2-C3H6.
WOS关键词VAPOR-PHASE EPOXIDATION ; PROPENE EPOXIDATION ; GOLD NANOPARTICLES ; TITANIUM SILICALITE-1 ; CATALYTIC PERFORMANCE ; SELECTIVE OXIDATION ; AU NANOPARTICLES ; ACTIVE-SITES ; O-2 ; H-2
资助项目National Natural Science Foundation of China[21473186] ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030900]
WOS研究方向Chemistry ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000483006600005
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://cas-ir.dicp.ac.cn/handle/321008/172988]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Huang, Jiahui; Lu, An-Hui
作者单位1.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Gold Catalysis Res Ctr, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Tokyo Metropolitan Univ, Res Ctr Gold Chem, Dept Appl Chem, Grad Sch Urban Environm Sci, Tokyo 1920379, Japan
推荐引用方式
GB/T 7714		 Ren, Yue-gong,Huang, Jiahui,Lv, Qiang,et al. Dual-component gas pretreatment for Au/TS-1: Enhanced propylene epoxidation with oxygen and hydrogen[J]. APPLIED CATALYSIS A-GENERAL,2019,584:8.
APA Ren, Yue-gong,Huang, Jiahui,Lv, Qiang,Xie, Yan,Lu, An-Hui,&Haruta, Masatake.(2019).Dual-component gas pretreatment for Au/TS-1: Enhanced propylene epoxidation with oxygen and hydrogen.APPLIED CATALYSIS A-GENERAL,584,8.
MLA Ren, Yue-gong,et al."Dual-component gas pretreatment for Au/TS-1: Enhanced propylene epoxidation with oxygen and hydrogen".APPLIED CATALYSIS A-GENERAL 584(2019):8.

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来源：大连化学物理研究所

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