中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effect of acidity in TS-1 zeolites on product distribution of the styrene oxidation reaction

文献类型:期刊论文

作者Zhuang, JQ; Ma, D; Yan, ZM; Liu, XM; Han, XW; Bao, XH; Zhang, YH; Guo, XW; Wang, XS
刊名applied catalysis a-general
出版日期2004-02-10
卷号258期号:1页码:1-6
关键词acidity zeolites styrene
产权排序1;1
英文摘要the role of bronsted acidity of titanium silicalite zeolite (with different ratios of si/ti) in oxidation reactions of styrene has been investigated and discussed. for zeolites with si/ti > 42, most of the titanium is in the zeolite framework. these framework titanium species, which act both as the isolated titanium centers and as bronsted acidity centers (together with the bronsted acidity produced by the tetrahedral aluminum impurity introduced during synthesis), can catalyze both the epoxidation and the succeeding rearrangement reactions, thus promoting the formation of phenylacetaldehyde. with an increase in the titanium content of the zeolite, titanium will tend to stay outside the zeolite lattice, except for the tiox nanophases which can be occluded in the zeolite channels or on the external surface. these non-framework titanium species are favorable for the carbon-carbon bond scission, leading to the production of additional benzaldehyde. the catalytic performances of these zeolites with different si/ti ratios are correlated here with their structural information by using solid-state nmr and uv-vis methods. (c) 2003 elsevier b.v. all rights reserved.
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
关键词[WOS]solid-state nmr ; si-29 mas nmr ; titanium silicalite ; hydrogen-peroxide ; epoxidation ; sites ; trimethylphosphine ; probe ; h2o2
收录类别SCI
原文出处true
语种英语
WOS记录号WOS:000188968200001
公开日期2010-11-30
源URL[http://159.226.238.44/handle/321008/82639]  
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
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
推荐引用方式
GB/T 7714
Zhuang, JQ,Ma, D,Yan, ZM,et al. Effect of acidity in TS-1 zeolites on product distribution of the styrene oxidation reaction[J]. applied catalysis a-general,2004,258(1):1-6.
APA Zhuang, JQ.,Ma, D.,Yan, ZM.,Liu, XM.,Han, XW.,...&Wang, XS.(2004).Effect of acidity in TS-1 zeolites on product distribution of the styrene oxidation reaction.applied catalysis a-general,258(1),1-6.
MLA Zhuang, JQ,et al."Effect of acidity in TS-1 zeolites on product distribution of the styrene oxidation reaction".applied catalysis a-general 258.1(2004):1-6.

入库方式: OAI收割

来源:大连化学物理研究所

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