中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: UV Raman Spectroscopic Characterization of Catalytic Materials
作者: Fan Fengtao1, 2;  Xu Qian1, 2;  Xia Haian1;  Sun Keju1;  Feng Zhaochi1;  Li Can1
关键词: UV Raman ;  in situ Raman ;  microporous and mesoporous material ;  transition metal-containing microporous and mesoporous material ;  synthesis mechanism ;  phase transformation
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2009-08-01
卷: 30, 期:8, 页:717-739
收录类别: SCI
文章类型: Review
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: UV Raman spectroscopy is becoming a powerful technique for catalysis as well as many other fields such as chemistry, physics, biology, and material science mainly because it can avoid the fluorescence interference occurring in visible Raman spectra and concurrently enhance the Raman signal owing to the short wavelength and resonance Raman effect. This article reviews the recent advances in catalytic characterization using UV Raman spectroscopy, including the characterization of highly dispersed transition metal oxides on supports, transition metal ions in the framework of microporous and mesoporous materials, the synthesis mechanism of zeolites, and the surface phase of metal oxide catalysts. One of the advances is the successful identification of highly isolated transition metal ions incorporated in the framework of microporous and mesoporous materials such as TS-1, Ti-MCM-41, Fe-ZSM-5, Fe-SBA-15, and V-MCM-41 base on the UV resonance Raman effect. Moreover, in an effort to gain a greater understanding of the formation mechanism of zeolites, we have recently developed an apparatus capable of studying hydrothermal reactions in situ UV Raman spectroscopy by taking the advantage of UV Raman spectroscopy. The synthesis mechanism of microporous materials (such as zeolite X and Fe-ZSM-5) has been investigated, which can sensitively detect the precursors and intermediates evolved in the synthesis solution and gels. In addition, the active sites and the structure of Fe-ZSM-5 with highly dispersed transition metal oxides on zeolite supports have been studied through resonance Raman spectroscopy. The results demonstrated that the active oxygen species have been identified as the peroxide bridged di-nuclear iron species, and the reaction intermediates bear a degree of resemblance to the iron complex in soluble methane monooxygenase (sMMO). Another finding by UV Raman spectroscopy is that the phase transformation in the surface region of most metal oxide nanoparticles (such as ZrO2 and TiO2) is remarkably different from that in their bulk. This finding is extremely important to catalysis because the catalytic performance is generally dependent on the surface phase. For example, UV Raman spectroscopic study clearly demonstrates that the generation of surface-phase junction on TiO2 catalyst can significantly enhance the photocatalytic activity for hydrogen production.
关键词[WOS]: RAY-POWDER DIFFRACTION ;  MESOPOROUS MOLECULAR-SIEVES ;  SOLID SUPERACID CATALYST ;  RESONANCE RAMAN ;  N2O DECOMPOSITION ;  ACTIVE-SITES ;  PHASE-TRANSFORMATION ;  BENZENE HYDROXYLATION ;  FE-SILICALITE ;  ZEOLITE-A
语种: 英语
WOS记录号: WOS:000270149200004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141425
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Fan Fengtao,Xu Qian,Xia Haian,et al. UV Raman Spectroscopic Characterization of Catalytic Materials[J]. CHINESE JOURNAL OF CATALYSIS,2009,30(8):717-739.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Fan Fengtao]'s Articles
 [Xu Qian]'s Articles
 [Xia Haian]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Fan Fengtao]‘s Articles
 [Xu Qian]‘s Articles
 [Xia Haian]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace