H2O2-Based Selective Oxidations over Titaniumsilicates of SBA-15 Type Full article
| Journal |
Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093 |
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| Output data | Year: 2003, Volume: 59, Number: 2-3, Pages: 73-84 Pages count : 12 DOI: 10.1016/S1387-1811(03)00287-7 | ||||
| Tags | H2O2, Mesoporous titaniumsilicate, Selective oxidation, Ti-SBA-15 | ||||
| Authors |
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| Affiliations |
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Funding (4)
| 1 | Russian Foundation for Basic Research | 01-03-32391 |
| 2 | Russian Foundation for Basic Research | 01-03-32852 |
| 3 | Russian Foundation for Basic Research | 02-03-06352 |
| 4 | Civilian Research and Development Foundation | REC-008 |
Abstract:
Hexagonally packed mesostructured titanosilicates of the SBA-15 type have been prepared in moderately acidic aqueous media starting from sodium disilicate Na2Si2O5, TiOSO4, and olefin oxide co-polymer of the Pluronic type (P123) as a template. Structure–texture parameters of the synthesised materials were characterised by using X-ray diffraction and nitrogen adsorption techniques. The titanium state in the silicate matrix was characterised by DR-UV, IR, Raman spectroscopy, and XPS. The catalytic properties of the new titaniumsilicates were tested in oxidation reactions with aqueous H2O2 using methyl phenyl sulfide and 2,3,6-trimethylphenol as model substrates and compared with the catalytic properties of TS-1 and Ti-MMM (titaniumsilicate of the MCM-41 type). The structure of the Ti-SBA-15 materials, by contrast to Ti-MMM catalysts, was proved to be hydrolytically stable towards aqueous H2O2. The catalytic activity of Ti-SBA-15 is considerably lower than that of Ti-MMM, most likely due to a lower titanium dispersion and higher wall thickness of the former material, which makes part of titanium sites unavailable for the reactants.
Cite:
Trukhan N.N.
, Romannikov V.N.
, Shmakov A.N.
, Vanina M.P.
, Paukshtis E.A.
, Bukhtiyarov V.I.
, Kriventsov V.V.
, Danilov I.Y.
, Kholdeeva O.A.
H2O2-Based Selective Oxidations over Titaniumsilicates of SBA-15 Type
Microporous and Mesoporous Materials. 2003. V.59. N2-3. P.73-84. DOI: 10.1016/S1387-1811(03)00287-7 WOS Scopus РИНЦ ANCAN OpenAlex
H2O2-Based Selective Oxidations over Titaniumsilicates of SBA-15 Type
Microporous and Mesoporous Materials. 2003. V.59. N2-3. P.73-84. DOI: 10.1016/S1387-1811(03)00287-7 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | May 16, 2002 |
| Accepted: | Jan 21, 2003 |
| Published online: | Mar 11, 2003 |
| Published print: | May 19, 2003 |
Identifiers:
| Web of science: | WOS:000182873700001 |
| Scopus: | 2-s2.0-0038238568 |
| Elibrary: | 13436925 |
| Chemical Abstracts: | 2003:326409 |
| Chemical Abstracts (print): | 139:106987 |
| OpenAlex: | W2017911892 |