Highly dispersed Mo–MCM-41 produced from silatrane and molybdenum glycolate precursors and its peroxidation activity

Thanabodeekij, N.; Gülari, Erdogan; Wongkasemjit, Sujitra

doi:10.1016/j.powtec.2007.01.011

Cited by 10 publications

(5 citation statements)

References 34 publications

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“…Na banda vibracional de 964 cm -1 verificou-se a presença do grupo Si=O na superfície da fase do molibdato. 23,24 A banda vibracional em 964 cm -1 , normalmente, é atribuída ao estiramento da ligação Si-O-H. Entretanto, foi observado um aumento…”

Section: Resultsunclassified

Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41

Silva¹,

Silva²,

Carvalho³

et al. 2012

Quím. Nova

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Section: Resultsunclassified

Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41

Silva¹,

Silva²,

Carvalho³

et al. 2012

Quím. Nova

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“…Silatrane is an organosilicate that has been become a great interest for the past few years to produce advanced materials, especially mesoporous materials via sol-gel process. 13 14 Wongkasemjit and her coworkers [15][16][17][18][19][20][21][22][23] have synthesized highly pure silatrane via the "Oxide One Pot Synthesis" process for producing mesoporous materials through the sol-gel process. The reaction of silatrane precursor with different surfactant templates provided variety of high-quality products, denoted by MFI, ZSM-5, and MCM-41.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Dendrimer Porogen-Capsulated Mesoporous Silica via Sol–Gel Process of Silatrane Precursor

Tanglumlert¹,

Wongkasemjit²,

Imae³

2009

J. Nanosci. Nanotech.

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Mesoporous silica materials with ordered structures were prepared from a silatrane precursor and a poly(amido amine) dendrimer porogen under the dilute acidic condition via the sol-gel process. With decreasing the concentration of the dendrimer and adding much water, the production of undesirable amorphous silica was diminished and spherical particles with smooth surface became in majority. Two kinds of crystal arrays were found to be produced in the silica particles. Although pore diameters were within sizes of shrank and extended dendrimers, center-to-center distance of template pores was different each other for two arrays, and the difference was close to a molecular length of silatrane. These results indicate that one molecule of silatrane constructed polysiloxane wall in the first array and origomeric silatranes formed wall in the second array. It was referred that the intrinsic (hydrogen bonding) character of hydroxyl groups in the hydrolyzed silatrane resulted in hydrogen bonded oligomers and reinforced the hydrogen bonding interaction with dendrimer porogen as well as electrostatic interaction, giving rise to two types of template arrays.

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“…In the past, hydrosilatranes played a key role for obtaining new silatranes (197)(198)(199)(200)(201)(202)(203)(204)(205)(206)(207)(208)(209)(210)(211) (Table 10). Dehydrocondensation reaction from hydrosilatrane in the presence of catalyst such as Na 73 or potassium tert-butylate 101 provides access to aryloxy or alkyloxysilatranes (197)(198)(199)(200)(201)(202).…”

Section: Route 3: Reaction Of Silatrane With Suitable Reagent To Form...mentioning

confidence: 99%

“…This surface shows better catalytic activity during peroxidative reaction. 204,205 Mo containing SBA-1 can be prepared by using molybdenum glycolate precursors as molybdenum source and hexadecyltrimethylammonium bromide (C16TMAB) as template. It shows high activity during epoxidation reaction of styrene monomer.…”

Section: Application In Sol-gel Processesmentioning

confidence: 99%

Silatranes: a review on their synthesis, structure, reactivity and applications

2011

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This critical review summarizes progress of the rapidly developing and very active field of silatrane chemistry. The first part of the review deals with general synthetic approaches used to synthesize different silatranes. The most interesting feature of silatranes, i.e., variation of Si-N bond length on the basis of the axial substituent of Si, and other structural features, are described in the second part with special emphasis on crystallographic and theoretical studies. It is followed by a discussion on the reactivity of various silatranes. Silatranes have now gained acceptance for a wide variety of applications which are summarized in the last section of review. Some of them have extensive interest due to their medical use to heal wounds or stimulate hair-growth (pilotropic activity), biological properties, pharmacological properties e.g. antitumor, anticancer, antibacterial, anti-inflammatory, fungicidal activity, stimulating effect in animal production and seed germination effects. The review focuses on the extended potential of silatranes in sol-gel processes, mesoporous zeotypes, atomic force microscopy, commercial products such as adhesion promoters, polymer formation and rubber compositions. This critical review will be helpful for general researchers, experts, advanced undergraduates and newcomers working on silatrane chemistry as this review presents greater emphasis on synthesis and characterization, structural properties, reactivity and applications of silatranes in the field of biology, material science, sol-gel chemistry, pharmaceutics, agriculture and medicine (311 references).

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Highly dispersed Mo–MCM-41 produced from silatrane and molybdenum glycolate precursors and its peroxidation activity

Cited by 10 publications

References 34 publications

Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41

Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41

Fabrication of Dendrimer Porogen-Capsulated Mesoporous Silica via Sol–Gel Process of Silatrane Precursor

Silatranes: a review on their synthesis, structure, reactivity and applications

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