Structural solution of mesocaged material AMS-8

被引：72

作者：

Garcia-Bennett, AE ^{[1
]}

Miyasaka, K

Terasaki, O

Che, SN

机构：

[1] Univ Stockholm, Arrhenius Lab, S-10691 Stockholm, Sweden

[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Dept Chem, Shanghai 200240, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2004年 / 16卷 / 19期

关键词：

D O I：

10.1021/cm049398e

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：

A novel mesoporous material prepared using the recently reported co-assembly of anionic surfactants with organosilane groups has been studied in depth using high-resolution transmission electron microscopy (HRTEM) and electron crystallography. A three-dimensional (3D) structural solution of AMS-8 was obtained by Fourier analysis of HRTEM images, revealing a complex cubic mesocaged solid (space group Fd (3) over barm) composed of bimodal cages 3D-connected by cage windows. HRTEM images also indicate the presence of structural defects associated with the cubic close packing of spheres, while analysis by nitrogen adsorption-desorption isotherms reveals that accessibility to smaller cages may be restricted in this material. The opened and closed models of this structure derived from a combination of electron crystallography and nitrogen adsorption data are discussed with respect to the arrangement of cages and cage connectivities. Considerations of the nature of the micellar system playing part in this novel templating mechanism are discussed.

引用

页码：3597 / 3605

页数：9

共 34 条

[11] GENERALIZED SYNTHESIS OF PERIODIC SURFACTANT INORGANIC COMPOSITE-MATERIALS [J].

HUO, QS ;

MARGOLESE, DI ;

CIESLA, U ;

FENG, PY ;

GIER, TE ;

SIEGER, P ;

LEON, R ;

PETROFF, PM ;

SCHUTH, F ;

STUCKY, GD .

NATURE, 1994, 368 (6469) :317-321

[12] Structural study of mesoporous MCM-48 and carbon networks synthesized in the spaces of MCM-48 by electron crystallography [J].

Kaneda, M ;

Tsubakiyama, T ;

Carlsson, A ;

Sakamoto, Y ;

Ohsuna, T ;

Terasaki, O ;

Joo, SH ;

Ryoo, R .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (06) :1256-1266

[13] Large cage face-centered-cubic Fm3m mesoporous silica:: Synthesis and structure [J].

Kleitz, F ;

Liu, DN ;

Anilkumar, GM ;

Park, IS ;

Solovyov, LA ;

Shmakov, AN ;

Ryoo, R .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (51) :14296-14300

[14] 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

[15] Argon adsorption at 77 K as a useful tool for the elucidation of pore connectivity in ordered materials with large cagelike mesopores [J].

Kruk, M ;

Jaroniec, M .

CHEMISTRY OF MATERIALS, 2003, 15 (15) :2942-2949

[16]

Liu XY, 2002, ANGEW CHEM INT EDIT, V41, P3876, DOI 10.1002/1521-3773(20021018)41:20<3876::AID-ANIE3876>3.0.CO

[17]

2-R

[18] Evaluating pore sizes in mesoporous materials: A simplified standard adsorption method and a simplified Broekhoff-de Boer method [J].

Lukens, WW ;

Schmidt-Winkel, P ;

Zhao, DY ;

Feng, JL ;

Stucky, GD .

LANGMUIR, 1999, 15 (16) :5403-5409

[19] LIPID POLYMORPHISM - A CORRECTION - THE STRUCTURE OF THE CUBIC PHASE OF EXTINCTION SYMBOL FD-- CONSISTS OF 2 TYPES OF DISJOINTED REVERSE MICELLES EMBEDDED IN A 3-DIMENSIONAL HYDROCARBON MATRIX [J].

LUZZATI, V ;

VARGAS, R ;

GULIK, A ;

MARIANI, P ;

SEDDON, JM ;

RIVAS, E .

BIOCHEMISTRY, 1992, 31 (01) :279-285

[20] Relations between structural parameters and adsorption characterization of templated nanoporous materials with cubic symmetry [J].

Ravikovitch, PI ;

Neimark, AV .

LANGMUIR, 2000, 16 (06) :2419-2423

← 1 2 3 4 →