Influence of ion exchange and calcination on pore size and thermal stability of MCM-41 with different Si/Al ratios

被引：15

作者：

Koch, H

Bohmer, U

Klemt, A

Reschetilowski, W

Stocker, M

机构：

[1] DECHEMA EV, Karl Winnacker Inst, D-60486 Frankfurt, Germany

[2] Dresden Univ Technol, Inst Ind Chem, D-01602 Dresden, Germany

[3] SINTEF, Appl Chem, N-0314 Oslo, Norway

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1998年 / 94卷 / 06期

关键词：

D O I：

10.1039/a707287b

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 decrease in pore size and increase in thermal stability of three different MCM-41 materials with Si/Al ratios of 18.6, 17.3 and 3.1, due to ammonia ion exchange and following calcination at 540 degrees C, has been observed by N-2 sorption measurements, differential thermal analysis (DTA) and X-ray diffraction (XRD). An explanation based on recrystallization at the pore mouth is proposed and the influence of the alumina content of the materials is discussed.

引用

收藏

页码：817 / 820

页数：4

相关论文

共 24 条

[1] HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPY OF MESOPOROUS MCM-41 TYPE MATERIALS [J].

ALFREDSSON, V ;

KEUNG, M ;

MONNIER, A ;

STUCKY, GD ;

UNGER, KK ;

SCHUTH, F .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (08) :921-922

[2] THE DETERMINATION OF PORE VOLUME AND AREA DISTRIBUTIONS IN POROUS SUBSTANCES .1. COMPUTATIONS FROM NITROGEN ISOTHERMS [J].

BARRETT, EP ;

JOYNER, LG ;

HALENDA, PP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (01) :373-380

[3] 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

[4]

BRECK DW, 1974, ZEOLITE MOL SIEVES, P441

[5] Adsorption of gases in multimolecular layers [J].

Brunauer, S ;

Emmett, PH ;

Teller, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319

[6] STUDIES ON MESOPOROUS MATERIALS .1. SYNTHESIS AND CHARACTERIZATION OF MCM-41 [J].

CHEN, CY ;

LI, HX ;

DAVIS, ME .

MICROPOROUS MATERIALS, 1993, 2 (01) :17-26

[7] CATALYTIC CRACKING OF ALKANES ON MCM-22 ZEOLITE - COMPARISON WITH ZSM-5 AND BETA-ZEOLITE AND ITS POSSIBILITY AS AN FCC CRACKING ADDITIVE [J].

CORMA, A ;

GONZALEZALFARO, V ;

ORCHILLES, AV .

APPLIED CATALYSIS A-GENERAL, 1995, 129 (02) :203-215

[8] ACIDITY AND STABILITY OF MCM-41 CRYSTALLINE ALUMINOSILICATES [J].

CORMA, A ;

FORNES, V ;

NAVARRO, MT ;

PEREZPARIENTE, J .

JOURNAL OF CATALYSIS, 1994, 148 (02) :569-574

[9] INORGANIC SOLID ACIDS AND THEIR USE IN ACID-CATALYZED HYDROCARBON REACTIONS [J].

CORMA, A .

CHEMICAL REVIEWS, 1995, 95 (03) :559-614

[10] 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