Highly selective gas-phase oxidation of benzyl alcohol to benzaldehyde over silver-containing hexagonal mesoporous silica

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	Highly selective gas-phase oxidation of benzyl alcohol to benzaldehyde over silver-containing hexagonal mesoporous silica
	Jia, Lihua 1; Zhang, Sen 1,2; Gu, Fangna 2; Ping, Yuan 1,2; Guo, Xiangfeng 1; Zhong, Ziyi 3; Su, Fabing 2
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2012-02-01
卷号	149 期号:1 页码:158-165
关键词	Silver Hexagonal mesoporous silica Benzyl alcohol oxidation Selective oxidation Benzaldehyde
ISSN号	1387-1811
通讯作者	Jia, LH
英文摘要	Silver-containing hexagonal mesoporous silica (Ag-HMS) catalysts with different Si/Ag ratios were synthesized by one-pot hydrothermal method for gas-phase selective oxidation of benzyl alcohol to benzaldehyde. The samples were characterized by nitrogen adsorption, X-ray diffraction, scanning electron micrograph, transmission electron micrograph. X-ray photoelectron spectroscopy, and UV-vis diffuse reflectance spectra. It was found that the Ag-HMS catalysts with different Ag loadings (0.55-3.50 wt.%) and different Ag particle sizes (5-32 nm) showed a similar level of catalytic property because they possess a similar Ag surface area. The Ag-HMS catalyst with a Ag loading of 2.81 wt.% exhibited excellent catalytic properties at 583 K with a high benzyl alcohol conversion of near 100%, benzaldehyde selectivity of around 96.0%, and benzaldehyde yield of about 96.0%, superior to those of other M-HMS catalysts (M = Co, Ce, La, Cu, Sr, Cd, Ni, Mn, V, and Fe). The enhanced catalytic performance could be attributed to the presence of the Ag surface oxygen species generated via oxygen spillover process. The work would be helpful for the development of novel Ag catalysts for selective oxidation of benzyl alcohol to obtain high quality of benzaldehyde and understanding the catalytic mechanism. (C) 2011 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]	WORMHOLE FRAMEWORK STRUCTURES ; SUPPORTED AG CATALYSTS ; FREE AEROBIC OXIDATION ; MOLECULAR-OXYGEN ; ALKALI-METAL ; HETEROGENEOUS CATALYSIS ; BIMETALLIC CATALYSTS ; HMS ; PALLADIUM ; SIEVES
收录类别	SCI
语种	英语
WOS记录号	WOS:000296933200021
公开日期	2013-10-30
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/4373]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Qiqihar Univ, Coll Chem & Chem Engn, Qiqihar 161006, Heilongnang Pro, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Inst Chem Engn & Sci, Singapore 627833, Singapore
推荐引用方式 GB/T 7714	Jia, Lihua,Zhang, Sen,Gu, Fangna,et al. Highly selective gas-phase oxidation of benzyl alcohol to benzaldehyde over silver-containing hexagonal mesoporous silica[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2012,149(1):158-165.
APA	Jia, Lihua.,Zhang, Sen.,Gu, Fangna.,Ping, Yuan.,Guo, Xiangfeng.,...&Su, Fabing.(2012).Highly selective gas-phase oxidation of benzyl alcohol to benzaldehyde over silver-containing hexagonal mesoporous silica.MICROPOROUS AND MESOPOROUS MATERIALS,149(1),158-165.
MLA	Jia, Lihua,et al."Highly selective gas-phase oxidation of benzyl alcohol to benzaldehyde over silver-containing hexagonal mesoporous silica".MICROPOROUS AND MESOPOROUS MATERIALS 149.1(2012):158-165.