Effect of platinum salts on mesoporous silica materials synthesized via a non-ionic surfactant templating route

被引：6

作者：

Aramendía, MA ^{[1
]}

Borau, V ^{[1
]}

Jiménez, C ^{[1
]}

Marinas, JM ^{[1
]}

Romero, FJ ^{[1
]}

Urbano, FJ ^{[1
]}

机构：

[1] Univ Cordoba, Dept Organ Chem, RA-14014 Cordoba, Argentina

来源：

ACTA MATERIALIA | 2001年 / 49卷 / 11期

关键词：

sol-gel; mesostructure; scanning electron microscopy (SEM); transmission electron microscopy (TEM); nuclear magnetic resonance (NMR);

D O I：

10.1016/S1359-6454(01)00106-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Various types of mesoporous silica solids were synthesized using a non-ionic template in a gel medium containing different platinum salts that were found to influence the porosity, morphology and structure of the materials obtained. Thus, our results show that platinum salts promote the hydrolysis of tetraethy-lorthosilicate (TEOS) and the presence of (NH4)(2)PtCl4 or H2PtCl6 leads to the formation of materials with larger particles, smaller pore sizes and less condensed than those obtained in the absence of platinum salts or in the presence of (NH3)(4)PtCl2 (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1957 / 1962

页数：6

共 20 条

[1]

Aramendía MA, 1999, CHEM COMMUN, P873

[2] Bimodal pore systems in non-ionically templated [Si]-MSU-X mesoporous silica through biomimetic synthesis in weakly ionic solutions [J].

Bagshaw, SA .

CHEMICAL COMMUNICATIONS, 1999, (18) :1785-1786

[3] TEMPLATING OF MESOPOROUS MOLECULAR-SIEVES BY NONIONIC POLYETHYLENE OXIDE SURFACTANTS [J].

BAGSHAW, SA ;

PROUZET, E ;

PINNAVAIA, TJ .

SCIENCE, 1995, 269 (5228) :1242-1244

[4] A NEW FAMILY OF MESOPOROUS MOLECULAR-SIEVES PREPARED WITH LIQUID-CRYSTAL TEMPLATES [J].

BECK, JS ;

VARTULI, JC ;

ROTH, WJ ;

LEONOWICZ, ME ;

KRESGE, CT ;

SCHMITT, KD ;

CHU, CTW ;

OLSON, DH ;

SHEPPARD, EW ;

MCCULLEN, SB ;

HIGGINS, JB ;

SCHLENKER, JL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (27) :10834-10843

[5] From microporous to mesoporous molecular sieve materials and their use in catalysis [J].

Corma, A .

CHEMICAL REVIEWS, 1997, 97 (06) :2373-2419

[6] Siliceous mesoporous molecular sieves derived from crown ether surfactants [J].

Danumah, C ;

Zaidi, SMJ ;

Xu, G ;

Voyer, N ;

Giasson, S ;

Kaliaguine, S .

MICROPOROUS AND MESOPOROUS MATERIALS, 2000, 37 (1-2) :21-32

[7] Textural control of micelle-templated mesoporous silicates: the effects of co-surfactants and alkalinity [J].

Di Renzo, F ;

Testa, F ;

Chen, JD ;

Cambon, H ;

Galarneau, A ;

Plee, D ;

Fajula, F .

MICROPOROUS AND MESOPOROUS MATERIALS, 1999, 28 (03) :437-446

[8] Mesoporous materials by templating of liquid crystalline phases [J].

Goltner, CG ;

Antonietti, M .

ADVANCED MATERIALS, 1997, 9 (05) :431-&

[9] Calcination of the MCM-41 mesophase: mechanism of surfactant thermal degradation and evolution of the porosity [J].

Keene, MTJ ;

Gougeon, RDM ;

Denoyel, R ;

Harris, RK ;

Rouquerol, J ;

Llewellyn, PL .

JOURNAL OF MATERIALS CHEMISTRY, 1999, 9 (11) :2843-2850

[10] ORDERED MESOPOROUS MOLECULAR-SIEVES SYNTHESIZED BY A LIQUID-CRYSTAL TEMPLATE MECHANISM [J].

KRESGE, CT ;

LEONOWICZ, ME ;

ROTH, WJ ;

VARTULI, JC ;

BECK, JS .

NATURE, 1992, 359 (6397) :710-712

← 1 2 →