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题名: Finding the "Missing Components" during the Synthesis of TS-1 Zeolite by UV Resonance Raman Spectroscopy
作者: Guo, Qiang1, 2;  Feng, Zhaochi1;  Li, Guanna1;  Fan, Fengtao1;  Li, Can1
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2013-02-14
DOI: 10.1021/jp310900a
卷: 117, 期:6, 页:2844-2848
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The catalytic performance of TS-1 zeolite greatly depends on the types of titanium species and their concentrations in the zeolite. Coupled with UV/vis spectroscopy, we present a UV resonance Raman spectroscopic investigation on the evolution of the titanium species during the crystallization of TS-1 zeolite. It is found that a small portion of Ti species leaches from the solid phase into the liquid phase. The "missing" Ti species in addition to the framework Ti species during the assembly process of TS-1 is identified as isolated "TiO6" species, due to the resonance Raman effect excited at 266 nm. The formation mechanisms of framework Ti species in TS-1 and the relation with the isolated "TiO6" species during the synthesis process are clarified. A synthetic strategy was designed to increase the concentration of the framework titanium by a factor of 1.5 for the actual synthesis of TS-1 zeolite.
关键词[WOS]: REACTIVE MOLECULES H2O ;  FRAMEWORK TI(IV) ;  TITANIUM SILICALITE ;  SYNTHESIS MECHANISM ;  POWDER DIFFRACTION ;  HYDROGEN-PEROXIDE ;  TI-SILICALITE ;  MFI FRAMEWORK ;  TI-SILICALITE-1 ;  TRANSITION
语种: 英语
WOS记录号: WOS:000315181800054
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137873
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Guo, Qiang,Feng, Zhaochi,Li, Guanna,et al. Finding the "Missing Components" during the Synthesis of TS-1 Zeolite by UV Resonance Raman Spectroscopy[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2013,117(6):2844-2848.
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