Generation and identification of strong acid sites in AlMCM-41 prepared by gel equilibrium adjustment method

被引：7

作者：

Reddy, KR ^{[1
]}

Araki, N ^{[1
]}

Niwa, M ^{[1
]}

机构：

[1] TOTTORI UNIV, FAC ENGN, DEPT MAT SCI, TOTTORI 680, JAPAN

来源：

CHEMISTRY LETTERS | 1997年 / 07期

关键词：

D O I：

10.1246/cl.1997.637

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

AlMCM-41 materials with SiO2/Al2O3 ratio 46 (in gel) were prepared by varying the chain length of the template from C-10-C-16 in the main chain of alkyltrimethyl ammonium halide and by adjusting the gel pH to 11.00. Thus obtained H-AlMCM-41 materials possess strong acid sites which are characterized by improved ammonia TPD technique using mass detector and coadsorbed water. An almost good agreement in number was observed between desorbed NH3 molecules and Al atoms in H-AlMCM-41.

引用

页码：637 / 638

页数：2

共 10 条

[1] Improving the selectivity of NH3 TPD measurements [J].

Bagnasco, G .

JOURNAL OF CATALYSIS, 1996, 159 (01) :249-252

[2] 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

[3] 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

[4] 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

[5] Cracking activity and hydrothermal stability of MCM-41 and its comparison with amorphous silica-alumina and a USY zeolite [J].

Corma, A ;

Grande, MS ;

GonzalezAlfaro, V ;

Orchilles, AV .

JOURNAL OF CATALYSIS, 1996, 159 (02) :375-382

[6]

KATADA N, 1997, IN PRESS INTL S ZEOL

[7]

KIM JH, 1997, IN PRESS MICROPOROUS

[8] ION-EXCHANGE AND THERMAL-STABILITY OF MCM-41 [J].

KIM, JM ;

KWAK, JH ;

JUN, S ;

RYOO, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (45) :16742-16747

[9] 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

[10] TEMPERATURE-PROGRAMMED DESORPTION OF AMMONIA WITH READSORPTION BASED ON THE DERIVED THEORETICAL EQUATION [J].

NIWA, M ;

KATADA, N ;

SAWA, M ;

MURAKAMI, Y .

JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (21) :8812-8816

← 1 →