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H2O2-Based Selective Oxidations over Titaniumsilicates of SBA-15 Type Научная публикация

Общее Язык: Английский, Жанр: Статья (Full article),
Статус опубликования: Опубликована, Оригинальность: Оригинальная
Журнал Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093
Вых. Данные Год: 2003, Том: 59, Номер: 2-3, Страницы: 73-84 Страниц : 12 DOI: 10.1016/S1387-1811(03)00287-7
Ключевые слова H2O2, Mesoporous titaniumsilicate, Selective oxidation, Ti-SBA-15
Авторы Trukhan N.N. 1 , Romannikov V.N. 1 , Shmakov A.N. 1 , Vanina M.P. 1 , Paukshtis E.A. 1 , Bukhtiyarov V.I. 1 , Kriventsov V.V. 1 , Danilov I.Yu. 2 , Kholdeeva O.A. 1
Организации
1 Boreskov Institute of Catalysis, Pr. Academika Lavrentiev Av. 5, Novosibirsk 630090, Russia
2 Institute of Chemistry and Chemical Engineering, K. Marx Av. 42, Krasnoyarsk 660049, Russia

Информация о финансировании (4)

1 Civilian Research and Development Foundation REC-008
2 Российский фонд фундаментальных исследований 01-03-32391
3 Российский фонд фундаментальных исследований 01-03-32852
4 Российский фонд фундаментальных исследований 02-03-06352

Реферат: 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.
Библиографическая ссылка: 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
Даты:
Поступила в редакцию: 16 мая 2002 г.
Принята к публикации: 21 янв. 2003 г.
Опубликована online: 11 мар. 2003 г.
Опубликована в печати: 19 мая 2003 г.
Идентификаторы:
Web of science WOS:000182873700001
Scopus 2-s2.0-0038238568
РИНЦ 13436925
Chemical Abstracts 2003:326409
Chemical Abstracts (print) 139:106987
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