High-performance Pd-Au bimetallic catalyst with mesoporous silica nanoparticles as support and its catalysis of cinnamaldehyde hydrogenation

doi:10.1016/j.jcat.2012.04.003

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	High-performance Pd-Au bimetallic catalyst with mesoporous silica nanoparticles as support and its catalysis of cinnamaldehyde hydrogenation
	Yang, Xu 1,2; Chen, Dan 1,2; Liao, Shijun 1,2; Song, Huiyu 1,2; Li, Yingwei 1,2; Fu, Zhiyong 1,2; Su, Yunlan 3
刊名	JOURNAL OF CATALYSIS
	2012-07-01
卷号	291 页码:36-43
关键词	Bimetallic Cinnamaldehyde Hydrogenation Mesoporous Silica Pd-au Synergistic Effect
ISSN号	0021-9517
DOI	10.1016/j.jcat.2012.04.003
英文摘要	A high-performance bimetallic catalyst with mesoporous silica nanoparticles as support, PdAu/MSN, was prepared by an organic impregnation-hydrogen reduction approach. A series of investigations were conducted to assess the effects of (i) the porous nanoparticle support on the dispersion of active components and on the catalyst's performance, (ii) the addition of gold on the dispersion of active components and the catalyst's activity, and (iii) the preparation parameters, such as solvent, pressure, and temperature, on the catalyst's activity. The active metallic components were highly dispersed, with particle size 2.5 nm. The addition of gold to the catalyst favorably promoted the hydrogenation of cinnamaldehyde. The activity of PdAu0.2/MSN (with Au/Pd molar ratio 0.2:1) was up to four times higher than that of Pd/MSN (without Au as a promoter) and eight times higher than that of commercial Pd/C catalyst. The enhanced activity of PdAu0.2/MSN can be attributed to the synergistic effect of Pd with the added Au and the highly dispersed active components. The ultrahigh activity, as well as its novel structure with controllable compositions, makes this catalyst very attractive for both fundamental research and practical applications. (C) 2012 Elsevier Inc. All rights reserved.
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000306779600005
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47157]
专题	中国科学院化学研究所
通讯作者	Liao, Shijun
作者单位	1.S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510641, Guangdong, Peoples R China 2.Minist Educ, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xu,Chen, Dan,Liao, Shijun,et al. High-performance Pd-Au bimetallic catalyst with mesoporous silica nanoparticles as support and its catalysis of cinnamaldehyde hydrogenation[J]. JOURNAL OF CATALYSIS,2012,291:36-43.
APA	Yang, Xu.,Chen, Dan.,Liao, Shijun.,Song, Huiyu.,Li, Yingwei.,...&Su, Yunlan.(2012).High-performance Pd-Au bimetallic catalyst with mesoporous silica nanoparticles as support and its catalysis of cinnamaldehyde hydrogenation.JOURNAL OF CATALYSIS,291,36-43.
MLA	Yang, Xu,et al."High-performance Pd-Au bimetallic catalyst with mesoporous silica nanoparticles as support and its catalysis of cinnamaldehyde hydrogenation".JOURNAL OF CATALYSIS 291(2012):36-43.