DICP OpenIR
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
KeywordAcidity Zeolites Styrene
Source PublicationAPPLIED CATALYSIS A-GENERAL
2004-02-10
DOI10.1016/j.apcata.2003.06.002
Volume258Issue:1Pages:1-6
Indexed BySCI
SubtypeArticle
Funding Project502
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
WOS SubjectChemistry, Physical ; Environmental Sciences
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS KeywordSOLID-STATE NMR ; SI-29 MAS NMR ; TITANIUM SILICALITE ; HYDROGEN-PEROXIDE ; EPOXIDATION ; SITES ; TRIMETHYLPHOSPHINE ; PROBE ; H2O2
AbstractThe 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.
Language英语
URL查看原文
WOS IDWOS:000188968200001
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/82639
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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.
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