Preparation, characterization and application of the magadiite based mesoporous composite material of catalytic interest

被引:18
作者
Fudala, A
Kónya, Z
Kiyozumi, Y
Niwa, SI
Toba, M
Mizukami, F
Lentz, PB
Nagy, J
Kiricsi, I
机构
[1] Attila Jozsef Univ, Dept Appl & Environm Chem, H-6720 Szeged, Hungary
[2] Natl Inst Mat & Chem Res, Surface Chem Dept, Tsukuba, Ibaraki 305, Japan
[3] Fac Univ Notre Dame Paix, NMR Lab, B-5000 Namur, Belgium
基金
匈牙利科学研究基金会; 美国国家科学基金会;
关键词
acidity; electron microscopy; IR and NMR spectroscopy; mechanical stability; mesoporous materials;
D O I
10.1016/S1387-1811(99)00257-7
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The synthesis of a new type of mesoporous materials by intercalation of silica between magadiite layers was carried out. For the preparation of the composite material, reactive silica gels with compositions characteristic for the synthesis of MCM-41 were used. Samples synthesized with various compositions were characterized by X-ray diffraction, IR and NMR spectroscopy, thermal analysis, BET measurements as well as scanning and transmission electron microscopy. These techniques showed that the composite samples are ordered materials with a pore opening around 4 nm, a specific surface area over 700 m(2) g-l, a regular pillared structure and tetrahedrally coordinated aluminum in the silica walls. The acidity of the samples, determined by the adsorption of pyridine and monitored by IR spectroscopy, was negligible for pure silica composites, while significant Br phi nsted and Lewis acid sites in different concentrations were found for the aluminum-containing materials. The catalytic activity of the samples followed the same trend in acid-catalyzed double bond isomerization of I-butene to 2-butenes and in the alkylation of toluene with benzyl chloride. Physisorption of benzene and chemisorption of methanol were concluded from in situ adsorption measurements by IR spectroscopy. The thermal and mechanical stabilities of the composite materials were higher than those of the MCM-41, irrespective of the composition. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:631 / 641
页数:11
相关论文
共 48 条
[1]   Modification of [M]-MSU-X mesoporous silicate pore morphology by post-synthesis treatment [J].
Bagshaw, SA .
CHEMICAL COMMUNICATIONS, 1999, (03) :271-272
[2]   TEMPLATING OF MESOPOROUS MOLECULAR-SIEVES BY NONIONIC POLYETHYLENE OXIDE SURFACTANTS [J].
BAGSHAW, SA ;
PROUZET, E ;
PINNAVAIA, TJ .
SCIENCE, 1995, 269 (5228) :1242-1244
[3]   Mesoporous alumina molecular sieves [J].
Bagshaw, SA ;
Pinnavaia, TJ .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1996, 35 (10) :1102-1105
[4]   MOLECULAR OR SUPRAMOLECULAR TEMPLATING - DEFINING THE ROLE OF SURFACTANT CHEMISTRY IN THE FORMATION OF MICROPOROUS AND MESOPOROUS MOLECULAR-SIEVES [J].
BECK, JS ;
VARTULI, JC ;
KENNEDY, GJ ;
KRESGE, CT ;
ROTH, WJ ;
SCHRAMM, SE .
CHEMISTRY OF MATERIALS, 1994, 6 (10) :1816-1821
[5]   PHYSISORPTION OF NITROGEN AND OXYGEN BY MCM-41, A MODEL MESOPOROUS ADSORBENT [J].
BRANTON, PJ ;
HALL, PG ;
SING, KSW .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1993, (16) :1257-1258
[6]   LARGE-PORE BIFUNCTIONAL TITANIUM-ALUMINOSILICATES - THE INORGANIC NONENZYMATIC VERSION OF THE EPOXIDASE CONVERSION OF LINALOOL TO CYCLIC ETHERS [J].
CORMA, A ;
IGLESIAS, M ;
SANCHEZ, F .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1995, (16) :1635-1636
[7]   SYNTHESIS OF AN ULTRALARGE PORE TITANIUM SILICATE ISOMORPHOUS TO MCM-41 AND ITS APPLICATION AS A CATALYST FOR SELECTIVE OXIDATION OF HYDROCARBONS [J].
CORMA, A ;
NAVARRO, MT ;
PARIENTE, JP .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (02) :147-148
[8]   IMPROVED STABILITY OF MCM-41 THROUGH TEXTURAL CONTROL [J].
COUSTEL, N ;
DIRENZO, F ;
FAJULA, F .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (08) :967-968
[9]   Trimethylsilylation of ordered and disordered titanosilicates:: improvements in epoxidation with aqueous H2O2 from micro- to meso-pores and beyond [J].
D'Amore, MB ;
Schwarz, S .
CHEMICAL COMMUNICATIONS, 1999, (02) :121-122
[10]   SILICA-PILLARED DERIVATIVES OF H+-MAGADIITE, A CRYSTALLINE HYDRATED SILICA [J].
DAILEY, JS ;
PINNAVAIA, TJ .
CHEMISTRY OF MATERIALS, 1992, 4 (04) :855-863