Selective Hydrogenation of Acetylene over SBA-15 Supported Au-Cu Bimetallic Catalysts

	Selective Hydrogenation of Acetylene over SBA-15 Supported Au-Cu Bimetallic Catalysts
	Lee, Jonathan William 1; Liu, Xiaoyan 2; Mou, Chung-Yuan 1
刊名	journal of the chinese chemical society
	2013-07-01
卷号	60 期号:7 页码:907-914
关键词	Gold Copper Bimetallic Acetylene hydrogenation Nanoparticle
英文摘要	copper has been reported to be active in selective hydrogenation of acetylene but very selective to oligomers instead of ethylene. in this work, sba-15 supported cu-au bimetallic nanoparticles are studied under different cu/au ratios and temperature. the addition of gold promotes the catalytic performance, reducing the amount of oligomers formed on the catalyst's surface. a synergistic effect between copper and gold is also displayed. the bimetallic catalyst with cu/au ratio at 1/3 has both better conversion and selectivity between 160-200 degrees c, providing the opportunities to lower the operating temperature (>200 degrees c) of copper. the synergy can be ascribed to the compromise of two factors: the electronic effect and the sintering resistance of bimetallic nanoparticles. gold makes copper more electron-deficient, therefore, enhances the conversion. besides, the particles remain highly dispersed and small (ca. 3 nm) when large amount of gold reduces the ensemble size of copper on the surface, minimizing c-c coupling reactions.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	co oxidation ; copper nanoparticles ; low-temperature ; gold catalysts ; reduction ; ethylene ; pd ; palladium ; mixtures ; excess
收录类别	SCI
语种	英语
WOS记录号	WOS:000327695600031
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/137526]
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
作者单位	1.Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Lee, Jonathan William,Liu, Xiaoyan,Mou, Chung-Yuan. Selective Hydrogenation of Acetylene over SBA-15 Supported Au-Cu Bimetallic Catalysts[J]. journal of the chinese chemical society,2013,60(7):907-914.
APA	Lee, Jonathan William,Liu, Xiaoyan,&Mou, Chung-Yuan.(2013).Selective Hydrogenation of Acetylene over SBA-15 Supported Au-Cu Bimetallic Catalysts.journal of the chinese chemical society,60(7),907-914.
MLA	Lee, Jonathan William,et al."Selective Hydrogenation of Acetylene over SBA-15 Supported Au-Cu Bimetallic Catalysts".journal of the chinese chemical society 60.7(2013):907-914.