Surface Properties of Mesoporous Ti-MCM-48 and their Modifications Produced by Silylation

V. DELLAROCCA; Leonardo MARCHESE; M. L. PEÑA; F. REY; A. CORMA; S. COLUCCIA

Surface Properties of Mesoporous Ti-MCM-48 and their Modifications Produced by Silylation

V. DELLAROCCA
, Leonardo MARCHESE
, M. L. PEÑA
, F. REY
, A. CORMA
, S. COLUCCIA

Dipartimento di Scienze e Innovazione Tecnologica

Risultato della ricerca: Contributo su rivista › Articolo in rivista

Abstract

The catalytic activity of Ti-MCM-48 catalysts may be improved by increasing the hydrophobic character of the surface by a silylation post-treatment with hexamethyldisilazane (HDMS) as silylating agent. In this way the poisoning of the catalysts is noticeably decreased. The silylation procedure led to the transformation of silanols, Si(OSi)₃(OH), into Si(OSi)₃[OSi(CH₃)₃], which was confirmed by ²⁹Si-MAS-NMR and diffuse reflectance (DR) UV-Vis spectroscopies.

Lingua originale	Inglese
pagine (da-a)	209-220
Numero di pagine	12
Rivista	Studies in Surface Science and Catalysis
Volume	140
Stato di pubblicazione	Pubblicato - 2001

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@article{a49857256f7c416bb0b26c4ad2f6acac,

title = "Surface Properties of Mesoporous Ti-MCM-48 and their Modifications Produced by Silylation",

abstract = "The catalytic activity of Ti-MCM-48 catalysts may be improved by increasing the hydrophobic character of the surface by a silylation post-treatment with hexamethyldisilazane (HDMS) as silylating agent. In this way the poisoning of the catalysts is noticeably decreased. The silylation procedure led to the transformation of silanols, Si(OSi)3(OH), into Si(OSi)3[OSi(CH3)3], which was confirmed by 29Si-MAS-NMR and diffuse reflectance (DR) UV-Vis spectroscopies.",

author = "V. DELLAROCCA and Leonardo MARCHESE and PE{\~N}A, \{M. L.\} and F. REY and A. CORMA and S. COLUCCIA",

note = "Funding Information: Financial supports from Italian MURST (Ministero dell{\textquoteright}Universit{\`a} e della Ricerca Scientifica e Tecnologica), MAT97-1207-CO3-01 and MAT97-1016-CO2-01 Spanish projects and the Italian-Spain bilateral action HI1998-0101 are acknowledged. M.L.P thanks the Ministerio de Educati{\'o}n y Cultura for the Doctoral fellowship.",

year = "2001",

language = "English",

volume = "140",

pages = "209--220",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Surface Properties of Mesoporous Ti-MCM-48 and their Modifications Produced by Silylation

AU - DELLAROCCA, V.

AU - MARCHESE, Leonardo

AU - PEÑA, M. L.

AU - REY, F.

AU - CORMA, A.

AU - COLUCCIA, S.

N1 - Funding Information: Financial supports from Italian MURST (Ministero dell’Università e della Ricerca Scientifica e Tecnologica), MAT97-1207-CO3-01 and MAT97-1016-CO2-01 Spanish projects and the Italian-Spain bilateral action HI1998-0101 are acknowledged. M.L.P thanks the Ministerio de Educatión y Cultura for the Doctoral fellowship.

PY - 2001

Y1 - 2001

N2 - The catalytic activity of Ti-MCM-48 catalysts may be improved by increasing the hydrophobic character of the surface by a silylation post-treatment with hexamethyldisilazane (HDMS) as silylating agent. In this way the poisoning of the catalysts is noticeably decreased. The silylation procedure led to the transformation of silanols, Si(OSi)3(OH), into Si(OSi)3[OSi(CH3)3], which was confirmed by 29Si-MAS-NMR and diffuse reflectance (DR) UV-Vis spectroscopies.

AB - The catalytic activity of Ti-MCM-48 catalysts may be improved by increasing the hydrophobic character of the surface by a silylation post-treatment with hexamethyldisilazane (HDMS) as silylating agent. In this way the poisoning of the catalysts is noticeably decreased. The silylation procedure led to the transformation of silanols, Si(OSi)3(OH), into Si(OSi)3[OSi(CH3)3], which was confirmed by 29Si-MAS-NMR and diffuse reflectance (DR) UV-Vis spectroscopies.

UR - https://iris.uniupo.it/handle/11579/8283

M3 - Article

SN - 0167-2991

VL - 140

SP - 209

EP - 220

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

Surface Properties of Mesoporous Ti-MCM-48 and their Modifications Produced by Silylation

Abstract

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