Pore size control of highly ordered mesoporous silica MCM-48

被引：89

作者：

Widenmeyer, M ^{[1
]}

Anwander, R ^{[1
]}

机构：

[1] Tech Univ Munich, Anorgan Chem Inst, D-85747 Garching, Germany

来源：

CHEMISTRY OF MATERIALS | 2002年 / 14卷 / 04期

关键词：

D O I：

10.1021/cm011273b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis of highly ordered cubic mesoporous silica MCM-48 with tunable pore sizes in the range 1.6-3.8 nm is reported. Pore size control has been achieved by using (mixtures of) gemini surfactants, [CH3(CH2)(n)NMe2(CH2)(m)NMe2(CH2)(n)CH3](2+)2Br(-), of different average chain length (m = 12 and n = 15, 21) as a structure-directing agent and by hydrothermal restructuring at pH > 9 and temperatures > 100 degreesC. A mesoporosity index, M, is introduced to describe porosity features of periodic mesoporous silica (PMS) materials. M is shown to provide distinct values for high quality MCM-48 (M 0.34-0.35) and MCM-41 materials (M 0.29-0.31) and to sensitively indicate microporosity in mesoporous and macroporous solids. Surface silylation based on tetramethyldisilazane, HN(SiHMe2)(2), reveals different surface silanol populations in dependency of the pore size, and hence, of the surface curvature.

引用

页码：1827 / 1831

页数：5

共 72 条

[21] On the microporous nature of mesoporous molecular sieves [J].

Göltner, CG ;

Smarsly, B ;

Berton, B ;

Antonietti, M .

CHEMISTRY OF MATERIALS, 2001, 13 (05) :1617-1624

[22] Design of nanosized structures in sol-gel derived porous solids. Applications in catalyst and inorganic membrane preparation [J].

Guizard, CG ;

Julbe, AC ;

Ayral, A .

JOURNAL OF MATERIALS CHEMISTRY, 1999, 9 (01) :55-65

[23]

HUE Q, 1995, SCIENCE, V268, P1324

[24] ORGANIZATION OF ORGANIC-MOLECULES WITH INORGANIC MOLECULAR-SPECIES INTO NANOCOMPOSITE BIPHASE ARRAYS [J].

HUO, QS ;

MARGOLESE, DI ;

CIESLA, U ;

DEMUTH, DG ;

FENG, PY ;

GIER, TE ;

SIEGER, P ;

FIROUZI, A ;

CHMELKA, BF ;

SCHUTH, F ;

STUCKY, GD .

CHEMISTRY OF MATERIALS, 1994, 6 (08) :1176-1191

[25] Surfactant control of phases in the synthesis of mesoporous silica-based materials [J].

Huo, QS ;

Margolese, DI ;

Stucky, GD .

CHEMISTRY OF MATERIALS, 1996, 8 (05) :1147-1160

[26] Existence of a microporous corona around the mesopores of silica-based SBA-15 materials templated by triblock copolymers [J].

Impéror-Clerc, M ;

Davidson, P ;

Davidson, A .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (48) :11925-11933

[27] METAMORPHIC MATERIALS - RESTRUCTURING SILICEOUS MESOPOROUS MATERIALS [J].

KHUSHALANI, D ;

KUPERMAN, A ;

OZIN, GA ;

TANAKA, K ;

GARCES, J ;

OLKEN, MM ;

COOMBS, N .

ADVANCED MATERIALS, 1995, 7 (10) :842-&

[28] Synthesis of mesoporous aluminophosphates using surfactants with long alkyl chain lengths and triisopropylbenzene as a solubilizing agent [J].

Kimura, T ;

Sugahara, Y ;

Kuroda, K .

CHEMICAL COMMUNICATIONS, 1998, (05) :559-560

[29] 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

[30] Characterization of MCM-48 silicas with tailored pore sizes synthesized via a highly efficient procedure [J].

Kruk, M ;

Jaroniec, M ;

Ryoo, R ;

Joo, SH .

CHEMISTRY OF MATERIALS, 2000, 12 (05) :1414-1421

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