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Effect of acidity in TS-1 zeolites on product distribution of the styrene oxidation reaction
Zhuang, JQ; Ma, D; Yan, ZM; Liu, XM; Han, XW; Bao, XH; Zhang, YH; Guo, XW; Wang, XS
关键词Acidity Zeolites Styrene
刊名APPLIED CATALYSIS A-GENERAL
2004-02-10
DOI10.1016/j.apcata.2003.06.002
258期:1页:1-6
收录类别SCI
文章类型Article
项目归属502
产权排名1;1
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
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.
语种英语
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WOS记录号WOS:000188968200001
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被引频次:44[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/82639
专题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
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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.
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