X-ray structural modeling of silicate mesoporous mesophase material

被引：87

作者：

Solovyov, LA

Kirik, SD

Shmakov, AN

Romannikov, VN

机构：

[1] Inst Chem & Chem Engn, Krasnoyarsk 660049, Russia

[2] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2001年 / 44卷

关键词：

silicate mesoporous material; X-ray modeling; Rietveld's technique; electron density distribution; wall structure;

D O I：

10.1016/S1387-1811(01)00164-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Rietveld's technique in combination with a continuous electron density representation was applied to structural modeling of highly ordered pure siliceous mesoporous mesophase material C16-SiO2-MMM of the MCM-41 type prepared by hydrothermal synthesis in the presence of C16H33N(CH3)(3)BR. Several important characteristics of the material in both as-synthesized and calcined forms were revealed. In particular, it was found that mesopores in the materials are of true hexagonal shape, and the wall electron density seems to be not continuous. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：17 / 23

页数：7

相关论文

共 16 条

[1] 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

[2] Diffuse wall structure and narrow mesopores in highly crystalline MCM-41 materials studied by X-ray diffraction [J].

Edler, KJ ;

Reynolds, PA ;

White, JW ;

Cookson, D .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (01) :199-202

[3] Comparative textural study of highly ordered silicate and aluminosilicate mesoporous mesophase materials having different pore sizes [J].

Fenelonov, VB ;

Derevyankin, AY ;

Kirik, SD ;

Solovyov, LA ;

Shmakov, AN ;

Bonardet, JL ;

Gedeon, A ;

Romannikov, VN .

MICROPOROUS AND MESOPOROUS MATERIALS, 2001, 44 :33-40

[4] Mesopore size and surface area calculations for hexagonal mesophases (types MCM41, FSM-16, etc.) using low-angle XRD and adsorption data [J].

Fenelonov, VB ;

Romannikov, VN ;

Derevyankin, AL .

MICROPOROUS AND MESOPOROUS MATERIALS, 1999, 28 (01) :57-72

[5] MODEL STRUCTURES FOR MCM-41 MATERIALS - A MOLECULAR-DYNAMICS SIMULATION [J].

FEUSTON, BP ;

HIGGINS, JB .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (16) :4459-4462

[6] Pore wall of a mesoporous molecular sieve derived from kanemite [J].

Inagaki, S ;

Sakamoto, Y ;

Fukushima, Y ;

Terasaki, O .

CHEMISTRY OF MATERIALS, 1996, 8 (08) :2089-2095

[7] Physicochemical features of the formation of siliceous porous mesophases 3. Conditions of formation and properties of mesoporous silica [J].

Kodenev, EG ;

Shmakov, AN ;

Derevyankin, AY ;

Nosov, AV ;

Romannikov, VN .

RUSSIAN CHEMICAL BULLETIN, 2000, 49 (10) :1669-1675

[8] ABINITIO STRUCTURE DETERMINATION OF LISBWO6 BY X-RAY-POWDER DIFFRACTION [J].

LE BAIL, A ;

DUROY, H ;

FOURQUET, JL .

MATERIALS RESEARCH BULLETIN, 1988, 23 (03) :447-452

[9] Rietveld refinement guidelines [J].

McCusker, LB ;

Von Dreele, RB ;

Cox, DE ;

Louër, D ;

Scardi, P .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1999, 32 :36-50

[10] SCATTERING FROM CYLINDRICALLY SYMMETRIC SYSTEMS [J].

OSTER, G ;

RILEY, DP .

ACTA CRYSTALLOGRAPHICA, 1952, 5 (02) :272-276