Preparation of aluminum-rich Beta zeolite

被引：68

作者：

Borade, RB ^{[1
]}

Clearfield, A ^{[1
]}

机构：

[1] TEXAS A&M UNIV, DEPT CHEM, COLLEGE STN, TX 77843 USA

来源：

MICROPOROUS MATERIALS | 1996年 / 5卷 / 05期

关键词：

D O I：

10.1016/0927-6513(95)00064-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Beta zeolite, containing 10.3 Al atoms per tetragonal unit cell (Si/Al=5.2), has been synthesized. X-Ray diffraction (XRD), thermogravimetric analysis (TGA) and chemical analysis were used to characterize the samples. The TGA study indicated that Beta zeolites at Si/Al<7.5 contain only one type of tetraethylammonium (TEA) species and at Si/Al>7.5 two types of TEA species. Al-27 and Si-29 magic-angle spinning nuclear magnetic resonance (MAS NMR) spectra confirmed that in as-synthesized Beta all Al atoms are present in the zeolite framework positions. The Fourier transform infrared (FTIR) spectra of chemisorbed pyridine were used to investigate the acidic properties of the aluminum-rich Beta zeolite.

引用

页码：289 / 297

页数：9

共 19 条

[1] EFFECT OF FLUORIDE IONS ON THE ACIDIC AND CATALYTIC PROPERTIES OF BETA-ZEOLITE
BORADE, RB
CLEARFIELD, A
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (03): : 539 - 547
[2] SYNTHESIS OF ZEOLITE-BETA FROM DENSE SYSTEM CONTAINING A MINIMUM OF TEMPLATE
BORADE, RB
CLEARFIELD, A
[J]. CATALYSIS LETTERS, 1994, 26 (3-4) : 285 - 289
[3] CHARACTERIZATION OF ACID SITES IN BETA AND ZSM-20 ZEOLITES
BORADE, RB
CLEARFIELD, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (16) : 6729 - 6737
[4] IRON-SUBSTITUTED BETA-MOLECULAR SIEVE - SYNTHESIS AND CHARACTERIZATION
BORADE, RB
CLEARFIELD, A
[J]. MICROPOROUS MATERIALS, 1994, 2 (03): : 167 - 177
[5] MECHANISM OF THE THERMAL-DECOMPOSITION OF TETRAETHYLAMMONIUM IN ZEOLITE-BETA
BOURGEAT-LAMI, E
DIRENZO, F
FAJULA, F
MUTIN, PH
COURIERES, TD
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (09) : 3807 - 3811
[6] STUDY OF THE STATE OF ALUMINUM IN ZEOLITE-BETA
BOURGEAT-LAMI, E
MASSIANI, P
DIRENZO, F
ESPIAU, P
FAJULA, F
COURIERES, TD
[J]. APPLIED CATALYSIS, 1991, 72 (01): : 139 - 152
[7] PARAMETERS AFFECTING THE OPTIMAL SYNTHESIS OF ZEOLITE ZSM-20
DEWAELE, N
MAISTRIAU, L
NAGY, JB
GABELICA, Z
DEROUANE, EG
[J]. APPLIED CATALYSIS, 1988, 37 (1-2): : 273 - 290
[8] ONE-DIMENSIONAL AND 2-DIMENSIONAL HIGH-RESOLUTION SOLID-STATE NMR-STUDIES OF ZEOLITE LATTICE STRUCTURES
FYFE, CA
FENG, Y
GRONDEY, H
KOKOTAILO, GT
GIES, H
[J]. CHEMICAL REVIEWS, 1991, 91 (07) : 1525 - 1543
[9] GABELICA Z, 1989, ACS SYM SER, V398, P518
[10] CHARACTERIZATION BY INFRARED AND NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPIES OF CALCINED BETA-ZEOLITE
JIA, C
MASSIANI, P
BARTHOMEUF, D
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (19): : 3659 - 3665

← 1 2 →