Effect of trivalent elements on the thermal and hydrothermal stability of MCM-41 mesoporous molecular materials

被引：16

作者：

He, NY ^{[1
]}

Lu, ZH

Yuan, CW

Hong, JM

Yang, C

Bao, SL

Xu, QH

机构：

[1] Southeast Univ, Natl Lab Mol & Biomol Elect, Nanjing 210096, Peoples R China

[2] Nanjing Univ, Ctr Mat Anal, Nanjing 210093, Peoples R China

[3] Nanjing Normal Univ, Dept Chem, Nanjing 210096, Peoples R China

[4] Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China

来源：

SUPRAMOLECULAR SCIENCE | 1998年 / 5卷 / 5-6期

基金：

中国博士后科学基金;

关键词：

thermal stability; hydrothermal stability; MCM-41;

D O I：

10.1016/S0968-5677(98)00073-X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Effect of trivalent elements on the thermal and hydrothermal stability of MCM-41 mesoporous molecular sieve materials has been investigated. Al(III) decreases the thermal and hydrothermal stability of MCM-41 materials, whereas La(III) and Fe(III), especially Fe(III), can improve the thermal and hydrothermal stability. Benzene adsorption and IR spectra suggested that thick channel wall and the fewer structural defect sires in MCM-41 would enhance the thermal and hydrothermal stability of MCM-41. (C) 1998 Elsevier Science Limited. All rights reserved.

引用

页码：553 / 558

页数：6

共 26 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] 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

[3] A MOLECULAR-SIEVE WITH 18-MEMBERED RINGS [J].

DAVIS, ME ;

SALDARRIAGA, C ;

MONTES, C ;

GARCES, J ;

CROWDER, C .

NATURE, 1988, 331 (6158) :698-699

[4] A SYNTHETIC GALLOPHOSPHATE MOLECULAR-SIEVE WITH A 20-TETRAHEDRAL-ATOM PORE OPENING [J].

ESTERMANN, M ;

MCCUSKER, LB ;

BAERLOCHER, C ;

MERROUCHE, A ;

KESSLER, H .

NATURE, 1991, 352 (6333) :320-323

[5] DEALUMINATION OF ZEOLITES WITH PHOSGENE [J].

FEJES, P ;

HANNUS, I ;

KIRICSI, I .

ZEOLITES, 1984, 4 (01) :73-76

[6] STRUCTURAL DEFECTS CAUSE DIFFERENT RATES OF PHASE-TRANSFORMATION OF THE MOLECULAR-SIEVES TBA-VPI-5 AND DPA-VPI-5 INTO ALPO(4)-8 [J].

HE, HY ;

BARR, TL ;

KLINOWSKI, J .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (35) :8775-8779

[7]

He NY, 1997, STUD SURF SCI CATAL, V105, P85

[8]

He NY, 1997, CHINESE J CHEM, V15, P42

[9] Formation of paramagnetic defect centers in aluminophosphate molecular sieves [J].

Hong, SB ;

Kim, SJ ;

Uh, YS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (34) :8102-8110

[10] Fundamental defect centers in AlPO4-5 and VPI-5 molecular sieves [J].

Hong, SB ;

Kim, SJ ;

Uh, YS .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (39) :15923-15925

← 1 2 3 →