Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst

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	Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst
	Li, Yang; Ma, Chunyan; Yang, Hongling; Zhang, Zhongshen; Zhang, Xin; Qiao, Nanli; Wang, Junhui; Hao, Zhengping
刊名	CHEMICAL ENGINEERING JOURNAL
	2016-09-01
卷号	299 期号:0 页码:1-7
关键词	Palladium/silica nanospheres 1-Butene double-bond isomerization 2-Butene Oxygen Room-temperature reaction
英文摘要	The traditional reaction temperatures of 1-butene isomerization to 2-butene tend to above 100 degrees C, while here we report the unique catalytic performance of a Pd loaded silica nanospheres catalyst for 1-butene double-bond-shift isomerization at room temperature and showed 2-butene yield of 37.0%. Furthermore, the introduction of O-2 into the reaction mixture dramatically improved the yield efficiency to 57.2% without the formation of by-product CO2. The reaction process is proved that the ratio of trans-2-butene to cis-2-butene in the final product was determined by the trans:cis ratio of the butenylcarbenium ion intermediate, and the ratio of trans-2-butene to cis-2-butene decreased with the increasing reaction temperature. Unlike other palladium catalyst systems, Pd-0 nanoparticles were proved to act as catalytic active sites, and their oxidation and aggregation resulted in a decrease in activity. Most importantly, the catalyst acidity affected the catalytic performance, which provides theoretical basis for the choice of catalysts. (C) 2016 Elsevier B.V. All rights reserved.
收录类别	SCI
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/36002]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Li, Yang,Ma, Chunyan,Yang, Hongling,et al. Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst[J]. CHEMICAL ENGINEERING JOURNAL,2016,299(0):1-7.
APA	Li, Yang.,Ma, Chunyan.,Yang, Hongling.,Zhang, Zhongshen.,Zhang, Xin.,...&Hao, Zhengping.(2016).Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst.CHEMICAL ENGINEERING JOURNAL,299(0),1-7.
MLA	Li, Yang,et al."Room-temperature isomerization of 1-butene to 2-butene over palladium-loaded silica nanospheres catalyst".CHEMICAL ENGINEERING JOURNAL 299.0(2016):1-7.