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FT-IR study on adsorption of propylene, oxygen and propylene oxide on NaCl-modified Cu/SiO2 catalyst
Lu, JQ; Wu, ZL; Luo, MF; Li, C
关键词Propylene Epoxidation Propylene Oxide Copper Silica Supported Catalyst Adsorption Infrared Spectroscopy
刊名CHINESE JOURNAL OF CATALYSIS
2004-11-01
25期:11页:855-861
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]PHASE-TRANSFER CATALYSIS ; TITANIUM SILICALITE ; PROPENE EPOXIDATION ; MOLECULAR-OXYGEN ; HYDROGEN ; AIR ; SILVER ; AU/TIO2 ; IONS
英文摘要The direct epoxidation of propylene to propylene oxide (PO) using molecular oxygen as the oxidant has attracted intense interest in recent years. We have reported that the Cu catalyst is effective for this reaction. In this paper, FT-IR spectroscopy is employed to investigate the adsorption of propylene, propylene/oxygen mixture and propylene oxide on the Cu-NaCl/SiO2 catalyst. It is found that propylene adsorption on the support and catalyst is reversible. For the propylene /oxygen mixture, no formation of PO but acrolein is observed on either unreduced or reduced catalyst. When PO is adsorbed on the support and unreduced catalyst, a ring-open reaction occurs through the interaction of PO with Si - OH on the support surface. The adsorption of PO on the reduced catalyst is more complicated and ketones may be produced.
语种英语
WOS记录号WOS:000225816000004
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138408
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Lu, JQ,Wu, ZL,Luo, MF,et al. FT-IR study on adsorption of propylene, oxygen and propylene oxide on NaCl-modified Cu/SiO2 catalyst[J]. CHINESE JOURNAL OF CATALYSIS,2004,25(11):855-861.
APA Lu, JQ,Wu, ZL,Luo, MF,&Li, C.(2004).FT-IR study on adsorption of propylene, oxygen and propylene oxide on NaCl-modified Cu/SiO2 catalyst.CHINESE JOURNAL OF CATALYSIS,25(11),855-861.
MLA Lu, JQ,et al."FT-IR study on adsorption of propylene, oxygen and propylene oxide on NaCl-modified Cu/SiO2 catalyst".CHINESE JOURNAL OF CATALYSIS 25.11(2004):855-861.
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