The role of synchrotron-based studies in the elucidation and design of active sites in titanium - Silica epoxidation catalysts

Accounts of Chemical Research

Volumn 34, Issue 7, 2001, Pages 571-581

  Thomas, J M ^a,b   Sankar, G ^a  

^a DAVY FARADAY RESEARCH LABORATORY   (United Kingdom)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

SILICON DIOXIDE; TITANIUM; TITANIUM DERIVATIVE;

ABSORPTION; ARTICLE; CATALYSIS; CHEMICAL COMPOSITION; CHEMISTRY; ENVIRONMENT; EPOXIDATION; HYDROPHOBICITY; MEASUREMENT; REACTION ANALYSIS; STRUCTURE ANALYSIS; X RAY ANALYSIS; X RAY DIFFRACTION;

CATALYSIS; CHEMISTRY, ANALYTICAL; ENVIRONMENT; SILICON DIOXIDE; TITANIUM;

EID: 0034877622     PISSN: 00014842     EISSN: None     Source Type: Journal    
DOI: 10.1021/ar010003w     Document Type: Article

References (79)

1. The hen-egg white lysozyme molecule
2. Catalysis in enzyme crystals
3. Uniform heterogeneous catalysts: The role of solid-state chemistry in their development and design
4. New microcrystalline catalysts (the Bakerian lecture)
5. Design, synthesis and in situ characterisation of new solid catalysts
6. 2 catalysts
7. Use of synchrotron radiation for the studies of solid surfaces
8. VI dimer catalyst during ethanol oxidation observed by means of EXAFS
9. Probing solid catalysts under operating conditions
10. The ineluctable need for in situ methods of characterising solid catalysts as a prerequisite to engineering active sites
11. In situ combined X-ray absorption spectroscopic and X-ray diffractometric studies of solid catalysts
12. In situ characterisation of catalysts
13. Adsorption measurements during surface catalysis
14. In situ studies of heterogeneous catalysts: Diffractometric and spectroscopic approaches
15. Monitoring cation-site occupancy of nickel-ion-exchanged zeolite Y catalysts by high-temperature in situ X-ray powder diffractometry
16. Structural studies of high-area zeolitic catalysts by a combination of X-ray powder diffraction and X-ray absorption spectroscopy
17. K-edge absorption-spectra of selected vanadium compounds
18. X-ray absorption edge studies of the electronic structure of metal catalysts
19. 3: Study of Rh-K EXAFS
20. Tracing the conversion of aurichalcite to a copper catalyst by combined X-ray absorption and diffraction
21. The role of XAFS in the in situ and ex situ elucidation of active sites in designed solid catalysts
22. Time-resolved energy-dispersive and conventional EXAFS studies of the interaction of nitrous oxide with copper catalysts
23. Combined QuEXAFS-XRD: A new technique in high-temperature materials chemistry. An illustrative in situ study of the ZnO-enhanced solid-state production of cordierite from a precursor zeolite
24. Solid catalysts studied under operating conditions
25. EXAFS investigation of divalent metal-ion substituted AIPOS
26. In situ studies of zeotype materials under operating conditions
27. A new cell for the collection of combined EXAFS/XRD data in situ during solid-liquid catalytic reactions
28. Titanosilicates: Recent developments in synthesis and use as oxidation catalysts
29. Microporous crystalline titanium silicates
30. Epoxidation of functionalised olefins over solid catalysts
31. Substrate-directable chemical reactions
32. Heterogeneous catalysis and fine chemicals
33. One-pot conversion of citronellal into isopulegol on mesoporous titanium silicate
34. The chemistry of crystalline sponges
35. Probing active sites in solid catalysts for liquid-phase epoxidation of alkenes
36. Titanium-containing mesoporous molecularsieves for catalytic-oxidation of aromatic-compounds
37. From microporous to mesoporous molecular sieve materials and their use in catalysis
38. Structural characterization of Ti centres in Ti-silicalite and reaction mechanisms in cyclohexanone ammoximation
39. Investigation of the structure of microporous Ti-Si mixed oxides by X-ray, UV reflectance, FT-raman, and FT-IR spectroscopies
40. Heterogeneous catalysts obtained by grafting metallocene complexes onto mesoporous silica
41. Engineering an atomically well-defined active site for the catalytic oxidation of alkenes
42. New catalytic methods for selective oxidation
43. Factors influencing the catalytic activity of titanium silicalites in selective oxidations
44. Transition-metal-catalyzed epoxidations
45. Coordination chemistry of Ti(IV) in silicate glasses and melts. 1. Xafs study of titanium coordination in oxide model compounds
46. Spectroscopic tools for probing the isolated titanium centers in MCM-41 mesoporous catalysts
47. Titanium-silica catalysts
48. The high-resolution structural characterisation and the rational design of inorganic solid catalysts
49. IVcatalysed epoxidation of alkenes by tert-alkyl hydroperoxides
50. 2 with titanium silicate
51. IV-active centers in the epoxidation of alkenes
52. 4 to give a highly active epoxidation catalyst
53. 2
54. Reactions of incompletely condensed silsesquioxaneswith pentamethylantimony - A new synthesis of metallasilsesquioxanes with important implications for the chemistry of silica surfaces
55. Hetero- ad metallasiloxanes derived from silanediols, disilanols, silanetriols and trisilanols
56. Developments in silica-supported organometallic catalysis: Silsesquioxanes and mesoporous silicates
57. Modelling the active sites of heterogeneous titanium epoxidation catalysts using titanium silsesquioxanes: Insight into specific factors determining leaching in liquid-phase process
58. Modelling the active sites of heterogeneous Ti-centred epoxidation catalysts with soluble silsesquioxane analogues
59. The influence of steric congestion on the catalytic performance of Ti-IV active centers in the epoxidation of alkenes
60. The identity in atomic structure and performance of active sites in heterogeneous and homogeneous Ti-silica epoxidation catalysts
61. Application of combined X-ray diffraction and absorption techniques for in situ catalyst characterisation
62. S. qexafs in seconds at an undulator source
63. MAPO-18: A new family of catalysts for the conversion of methanol to light olefins
64. On the nature of the active site in a CoAIPO-18 solid acid catalyst
65. Rational design of a solid acid catalyst for the conversion of methanol to light alkenes: Synthesis, structure and performance of DAF-4 (Davy-Faraday number 4)
66. Molecular sieve catalysts for the selective oxidation of linear alkanes by molecular oxygen
67. Powerful redox molecular sieve catalysts for the selective oxidation of cyclohexane in air
68. Designing a heterogeneous catalyst for the production of adipic acid by aerial oxidation of cyclohexane
69. Creation, characterisation and performance of vanadyl active sites in silica-based catalysts for the selective oxidation of hydrocarbons
70. VI active centers on mesoporous silica for the catalytic dehydrogeneation of methanol
71. Modelling the active sites of heterogeneous titanium epoxidation catalysts using titanium silasequioxanes: Insight into specific factors that determine leaching in liquid-phase processes
72. Baeyer-Villiger oxidation with a difference: Molecular
73. Hydrotalcite-derived mixed oxides containing copper: Catalysts for the removal of nitric oxide