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Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports
Zhang, Yifei1; Zhang, Shaohua1; Pan, Xiaoli1; Bao, Ming2; Huang, Jiahui1; Shen, Wenjie1
KeywordGold Catalysis Selective Hydrogenation Cinnamaldehyde Cinnamyl Alcohol Acidity/basicity
Source PublicationCATALYSIS LETTERS
2017
ISSN1011-372X
DOI10.1007/s10562-016-1901-8
Volume147Issue:1Pages:102-109
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordGOLD NANOPARTICLES ; CO OXIDATION ; CROTONALDEHYDE ; STABILITY ; IDENTIFICATION ; ACROLEIN ; SITES
AbstractUniform 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.
Language英语
WOS IDWOS:000394139200012
PublisherSPRINGER
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169631
Collection中国科学院大连化学物理研究所
Corresponding AuthorBao, Ming; Huang, Jiahui
Affiliation1.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
Recommended Citation
GB/T 7714
Zhang, Yifei,Zhang, Shaohua,Pan, Xiaoli,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 Zhang, Yifei,Zhang, Shaohua,Pan, Xiaoli,Bao, Ming,Huang, Jiahui,&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 Zhang, Yifei,et al."Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Au Catalysts: Influence of the Oxide-Supports".CATALYSIS LETTERS 147.1(2017):102-109.
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