Cu/SiO2 catalysts prepared by hom- and heterogeneous deposition-precipitation methods: Texture, structure, and catalytic performance in the hydrogenolysis of glycerol to 1,2-propanediol

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	Cu/SiO2 catalysts prepared by hom- and heterogeneous deposition-precipitation methods: Texture, structure, and catalytic performance in the hydrogenolysis of glycerol to 1,2-propanediol
	Huang ZW(黄志威)1,2 ; Cui F(崔芳)1,2 ; Xue JJ(薛晶晶)1; Zuo JL(左建良)1; Chen J(陈静)1,2 ; Xia CG(夏春谷)1,2 ; Xia CG(夏春谷); Chen J(陈静)
刊名	Catalysis Today
	2012
卷号	183 期号:1 页码:42-51
关键词	Cu/SiO2 catalyst Deposition-precipitation method Glycerol Hydrogenolysis Propanediol
ISSN号	0920-5861
通讯作者	陈静 ; 夏春谷
英文摘要	Cu/SiO₂ catalysts prepared by homogeneous deposition–precipitation (Hom-DP) and heterogeneous deposition–precipitation (Het-DP) methods have been systematically characterized focusing on the effect of precipitation manner during catalyst preparation. It is found that the texture, structure and composition of the dried, calcined and reduced catalysts were largely affected by the precipitation manner. Based on characterizations and previous findings, the copper species on the dried, calcined, and reduced catalysts as well as on the catalysts after work were assigned. Due to a homogeneous precipitation manner, the catalyst prepared by Hom-DP method presented a much higher dispersion, a smaller copper particle size and thus a larger copper surface area than those of its counterpart prepared by Het-DP method. Unexpectedly, catalytic activity tests in the hydrogenolysis of glycerol showed that the catalyst prepared by Het-DP method inversely surpassed the former catalyst, mainly due to a larger number of copper species in the Het-DP catalyst was prereduced to active Cu0 sites, which also presented remarkably higher stability during aqueous phase glycerol reaction as compared to those in the former catalyst. In addition, the selectivity to 1,2-propanediol product is found to be affected by both the precipitation agent applied and the structure of the catalysts.
学科主题	物理化学与绿色催化
收录类别	SCI
资助信息	the National Natural Science Foundation of China (Grant 20973187)
语种	英语
WOS记录号	WOS:000301126300007
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/3860]
专题	兰州化学物理研究所_OSSO国家重点实验室
通讯作者	Xia CG(夏春谷); Chen J(陈静)
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Huang ZW,Cui F,Xue JJ,et al. Cu/SiO2 catalysts prepared by hom- and heterogeneous deposition-precipitation methods: Texture, structure, and catalytic performance in the hydrogenolysis of glycerol to 1,2-propanediol[J]. Catalysis Today,2012,183(1):42-51.
APA	Huang ZW.,Cui F.,Xue JJ.,Zuo JL.,Chen J.,...&陈静.(2012).Cu/SiO2 catalysts prepared by hom- and heterogeneous deposition-precipitation methods: Texture, structure, and catalytic performance in the hydrogenolysis of glycerol to 1,2-propanediol.Catalysis Today,183(1),42-51.
MLA	Huang ZW,et al."Cu/SiO2 catalysts prepared by hom- and heterogeneous deposition-precipitation methods: Texture, structure, and catalytic performance in the hydrogenolysis of glycerol to 1,2-propanediol".Catalysis Today 183.1(2012):42-51.