Titanium-Doped Solid Core-Mesoporous Shell Silica Particles: Synthesis and Catalytic Properties in Selective Oxidation reactions Full article
| Journal |
Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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| Output data | Year: 2009, Volume: 127, Number: 1-2, Pages: 75-82 Pages count : 8 DOI: 10.1007/s10562-008-9632-0 | ||
| Tags | Core-shell structure, H2O2, Monodisperse silica particles, Selective oxidation, Site-isolated Ti centers | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 05-03-34760 |
| 2 | Russian Foundation for Basic Research | 06-03-08102 |
Abstract:
Near monodisperse spherical particles composed of a nonporous silica core covered by a Ti-doped hexagonally arranged mesoporous silica shell, Ti-SCMS, as well as spherical submicron-size particles of Ti-MCM-41, have been synthesized for the first time and characterized by elemental analysis, N2 adsorption, XRD, TEM and DR-UV spectroscopy. The mesoporous Ti,Si-shell has a thickness of about 45 nm and incorporates isolated Ti centers in tetrahedral coordination. Catalytic properties of Ti-SCMS and Ti-MCM-41 have been studied in selective oxidation of three representative bulky organic substrates, 2,3,6-trimethylphenol, methyl phenyl sulfide and caryophyllene, with aqueous H2O2 in MeCN medium. Ti-SCMS appeared to be more active and selective in the H2O2-based selective oxidation reactions compared to Ti-MCM-41, thus demonstrating an advantage of conducting a catalytic process in a thin mesoporous Ti,Si-shell.
Cite:
Barmatova M.V.
, Ivanchikova I.D.
, Kholdeeva O.A.
, Shmakov A.N.
, Zaikovskii V.I.
, Melʹgunov M.S.
Titanium-Doped Solid Core-Mesoporous Shell Silica Particles: Synthesis and Catalytic Properties in Selective Oxidation reactions
Catalysis Letters. 2009. V.127. N1-2. P.75-82. DOI: 10.1007/s10562-008-9632-0 WOS Scopus РИНЦ ANCAN OpenAlex
Titanium-Doped Solid Core-Mesoporous Shell Silica Particles: Synthesis and Catalytic Properties in Selective Oxidation reactions
Catalysis Letters. 2009. V.127. N1-2. P.75-82. DOI: 10.1007/s10562-008-9632-0 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Jul 2, 2008 |
| Accepted: | Aug 27, 2008 |
| Published online: | Oct 11, 2008 |
| Published print: | Jan 1, 2009 |
Identifiers:
| Web of science: | WOS:000261786400013 |
| Scopus: | 2-s2.0-57649195264 |
| Elibrary: | 13614425 |
| Chemical Abstracts: | 2008:1389951 |
| Chemical Abstracts (print): | 150:121289 |
| OpenAlex: | W1985866737 |