Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports

doi:10.1007/s10562-016-1901-8

	Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports
	Huang, Jiahui 1; Zhang, Yifei 1; Zhang, Shaohua 1; Pan, Xiaoli 1; Bao, Ming 2; Shen, Wenjie 1
刊名	CATALYSIS LETTERS
	2017
卷号	147 期号:1 页码:102-109
关键词	Gold Catalysis Selective Hydrogenation Cinnamaldehyde Cinnamyl Alcohol Acidity/basicity
ISSN号	1011-372X
DOI	10.1007/s10562-016-1901-8
文献子类	Article
英文摘要	Uniform Au particles with a mean size of 1.9 nm were initially synthesized with polyvinyl alcohol (PVA) as protecting agent, and then deposited on MgO, Al2O3, TiO2, Fe2O3, Co3O4, ZnO and In2O3. After calcinations at 300 A degrees C in air to remove PVA, Au particles were highly dispersed and immobilized on all the supports, displaying narrow diameter distributions and almost identical mean sizes of 2.5-3.2 nm. The Au-oxides catalysts were further used to catalyze selective hydrogenation of cinnamaldehyde (CAL) to cinnamyl alcohol (COL). It was found that the selectivity of COL was tightly related to the acidity/basicity of the Au/oxides catalysts. The catalyst with only acidic sites such as the Au/Al2O3 catalyst gave very low selectivity of COL of 15%. The catalysts with only basic sites such as Au/MgO catalyst displayed medium selectivity of COL of 52%. Interesting, the Au catalysts with both acidic and basic sites such as the Au/In2O3 and Au/ZnO catalyts exhibited the highest selectivity of COL of around 86%. The synergistic cooperation of acidic sites and basic sites should be responsible for preferential adsorption and activation of the C=O group than C=C group in CAL, and then preferential hydrogenation of C=O to COL.
WOS关键词	GOLD NANOPARTICLES ; CO OXIDATION ; CROTONALDEHYDE ; STABILITY ; IDENTIFICATION ; ACROLEIN ; SITES
WOS研究方向	Chemistry
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000394139200012
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169630]
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
通讯作者	Huang, Jiahui; Bao, Ming
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Gold Catalysis Res Ctr, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jiahui,Zhang, Yifei,Zhang, Shaohua,et al. Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports[J]. CATALYSIS LETTERS,2017,147(1):102-109.
APA	Huang, Jiahui,Zhang, Yifei,Zhang, Shaohua,Pan, Xiaoli,Bao, Ming,&Shen, Wenjie.(2017).Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports.CATALYSIS LETTERS,147(1),102-109.
MLA	Huang, Jiahui,et al."Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports".CATALYSIS LETTERS 147.1(2017):102-109.