GALLIUM, ALUMINUM AND MIXED GALLIUM ALUMINUM PILLARED MONTMORILLONITE - PREPARATION AND CHARACTERIZATION

被引：33

作者：

COELHO, AV ^{[1
]}

PONCELET, G ^{[1
]}

机构：

[1] UNITE CATALYSE & CHIM MAT DIVISES, PL CROIX SUD 2, BTE 17, B-1348 LOUVAIN, BELGIUM

来源：

APPLIED CATALYSIS | 1991年 / 77卷 / 02期

关键词：

ALUMINUM; GALLIUM; GALLIUM ALUMINUM; GALLIUM PILLARS; MONTMORILLONITE; PILLARED CLAYS;

D O I：

10.1016/0166-9834(91)80073-6

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：

Pillaring of montmorillonite was achieved with partially hydrolysed solutions of gallium, gallium-aluminium and aluminium. The development of 18 angstrom spcacings was investigated in relation with the OH/M3+ molar ratio, the amount of pillaring solution and the molar composition of the mixed solutions. With respect to Al-pillared clays, Ga- and Ga-Al-pillared montmorillonites exhibit similar behaviour toward heat treatment. They also have similar specific surface areas and pore volumes. IR spectroscopy of adsorbed pyridine show that both Bronsted and Lewis acidities are present, the former being slightly less developed in the Ga-pillared sample than in the aluminium analogue.

引用

页码：303 / 314

页数：12

共 25 条

[1] BARRI SAI, 1984, Patent No. 130013
[2] GALLIUM CONTAINING PILLARED INTERLAYER CLAYS - PREPARATION, CHARACTERIZATION AND CATALYTIC PROPERTIES
BELLALOUI, A
PLEE, D
MERIAUDEAU, P
[J]. APPLIED CATALYSIS, 1990, 63 (02): : L7 - L10
[3] DETECTION OF A NEW POLYMERIC SPECIES FORMED THROUGH THE HYDROLYSIS OF GALLIUM(III) SALT-SOLUTIONS
BRADLEY, SM
KYDD, RA
YAMDAGNI, R
[J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1990, (02): : 413 - 417
[4] COMPARISON OF THE HYDROLYZES OF GALLIUM(III) AND ALUMINUM(III) SOLUTIONS BY NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPY
BRADLEY, SM
KYDD, RA
YAMDAGNI, R
[J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1990, (09): : 2653 - 2656
[5] STUDY OF THE HYDROLYSIS OF COMBINED AL-3+ AND GA-3+ AQUEOUS-SOLUTIONS - FORMATION OF AN EXTREMELY STABLE GAO4AL12(OH)24(H2O)127+ POLYOXYCATION
BRADLEY, SM
KYDD, RA
YAMDAGNI, R
[J]. MAGNETIC RESONANCE IN CHEMISTRY, 1990, 28 (09) : 746 - 750
[6] BRADLEY SM, 1990, MAT RES SOC EXTENDED, P69
[7] COELHO AV, 1990, PILLARED LAYERED STR, P185
[8] Gnep N. S., 1989, ZEOLITES CATALYSTS S, P153
[9] CONVERSION OF LIGHT ALKANES TO AROMATIC-HYDROCARBONS .2. ROLE OF GALLIUM SPECIES IN PROPANE TRANSFORMATION ON GAHZSM5 CATALYSTS
GNEP, NS
DOYEMET, JY
SECO, AM
RIBEIRO, FR
GUISNET, M
[J]. APPLIED CATALYSIS, 1988, 43 (01): : 155 - 166
[10] KANAI J, 1988, STUD SURF SCI CATAL, V44, P211

← 1 2 3 →