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学科主题: 物理化学
题名: Au/mesoporous-TiO2 as catalyst for the oxidation of alcohols to carboxylic acids with molecular oxygen in water
作者: Zhou, Lipeng1;  Chen, Minzhu1;  Wang, Yougiang1;  Su, Yunlai1;  Yang, Xiaomei1;  Chen, Chen2;  Xu, Jie2
通讯作者: XiaomeiYang
关键词: Au ;  Mesoporous TiO2 ;  Oxidation ;  Alcohol ;  Carboxylic acid
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2014-04-05
DOI: 10.1016/j.apcata.2014.01.042
卷: 475, 期:1, 页:347-354
收录类别: SCI ;  CCR
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: Mesoporous TiO2 (meso-TiO2) with sharp pore size distribution was synthesized by hydrothermal method. The obtained meso-TiO2 is in pure anatase phase and presents spheric aggregates with diameter of 1.0-1.5 mu m, which consists of nanoparticles with size of 6-10 nm. Au supported on meso-TiO2 (Au/meso-TiO2) was prepared by urea deposition-precipitation method using HAuCl4 as gold source. The catalyst was characterized by X-ray diffraction, N-2 adsorption, transmission electron microscopy and UV-vis diffuse reflectance spectroscopy. The catalytic performance of Au/meso-TiO2 was studied in the oxidation of 1-pentanol to n-valeric acid with molecular oxygen as oxidant in water under basic conditions. It was found that meso-TiO2 is a better support for gold catalyst in the oxidation of 1-pentanol than NaY zeolite, hydrotalcite, and nano-TiO2. Deposition-precipitation time, calcination temperature and Au loading affected the catalytic performance of Au/meso-TiO2. The catalyst can also effectively catalyze the oxidation of aliphatic (C-3-C-10) and aromatic alcohols to the corresponding carboxylic acids. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: SUPPORTED GOLD CATALYSTS ;  SELECTIVE OXIDATION ;  CO OXIDATION ;  ALIPHATIC-ALCOHOLS ;  AEROBIC OXIDATION ;  NANOPARTICLES ;  PERFORMANCE ;  TIO2 ;  ZEOLITE ;  SOLVENT
语种: 英语
WOS记录号: WOS:000335610400043
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144405
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Zhou, Lipeng,Chen, Minzhu,Wang, Yougiang,et al. Au/mesoporous-TiO2 as catalyst for the oxidation of alcohols to carboxylic acids with molecular oxygen in water[J]. APPLIED CATALYSIS A-GENERAL,2014,475(1):347-354.
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