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In-Situ Loading Ultrafine AuPd Particles on Ceria: Highly Active Catalyst for Solvent-Free Selective Oxidation of Benzyl Alcohol
Zhang, Hongye; Xie, Yun; Sun, Zhenyu; Tao, Ranting; Huang, Changliang; Zhao, Yanfei; Liu, Zhimin
2011-02-01
Source PublicationLANGMUIR
ISSN0743-7463
Volume27Issue:3Pages:1152-1157
AbstractCe(III) oxide was synthesized under the protection of nitrogen gas, which had strong ability to reduce noble metal ions (e.g., Au, Pd ions) into metallic forms under oxygen-free conditions. On the basis of the surface redox reaction between the Ce(III) oxide support and noble metal ions, an effective and novel approach was presented to prepare noble metal/CeO2 nanocatalysts, and a series of AuPd/CeO2 nanocomposites with different Au:Pd molar ratios and metal loadings were obtained in the absence of any extra reducing and protective agents. The resultant composites were characterized by different techniques including X-ray diffraction, transmission electron microspectroscopy, X-ray photoelectron microspectroscopy, and ICP-AES analysis. It was demonstrated that in the AuPd/CeO2 composites the content of Ce(III) reached about 30%, and the AuPd bimetallic particles with average size of 2.6 or 3.3 nm and narrow size distribution were uniformly distributed on the CeO2 nanorods. The AuPd/CeO2 composites were found to be excellent heterogeneous nanocatalysts for the selective oxidation of benzyl alcohol under solvent-free conditions. It was shown that all the AuPd/CeO2 catalysts exhibited good selectivity toward benzaldehyde; especially, the catalyst with Au: Pd = 1:5 and metal loading of 1.2 wt % displayed extremely high activity with a TOF = 30.1 s(-1) at 160 degrees C.
DOI10.1021/la1034728
Indexed BySCI
Language英语
WOS IDWOS:000286485600042
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72824
Collection中国科学院化学研究所
Corresponding AuthorLiu, Zhimin
AffiliationChinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Hongye,Xie, Yun,Sun, Zhenyu,et al. In-Situ Loading Ultrafine AuPd Particles on Ceria: Highly Active Catalyst for Solvent-Free Selective Oxidation of Benzyl Alcohol[J]. LANGMUIR,2011,27(3):1152-1157.
APA Zhang, Hongye.,Xie, Yun.,Sun, Zhenyu.,Tao, Ranting.,Huang, Changliang.,...&Liu, Zhimin.(2011).In-Situ Loading Ultrafine AuPd Particles on Ceria: Highly Active Catalyst for Solvent-Free Selective Oxidation of Benzyl Alcohol.LANGMUIR,27(3),1152-1157.
MLA Zhang, Hongye,et al."In-Situ Loading Ultrafine AuPd Particles on Ceria: Highly Active Catalyst for Solvent-Free Selective Oxidation of Benzyl Alcohol".LANGMUIR 27.3(2011):1152-1157.
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