Preparation, characterization and catalytic activity of titania pillared montmorillonite clays

被引：106

作者：

Binitha, N. N. ^{[1
]}

Sugunan, S. ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Appl Chem, Cochin 682022, Kerala, India

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2006年 / 93卷 / 1-3期

关键词：

montmorillonite clays; Ti-pillaring; benzene ethylation; ethylbenzene;

D O I：

10.1016/j.micromeso.2006.02.005

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Titania pillared clays are prepared through a novel method using titania sol via colloidal route as the pillaring agent. Formation of pillared clay (PILC) is proved from the physico-chemical characterization using X-ray diffraction (XRD), surface area-pore volume measurements, thermogravimetric analysis (TGA), infrared (FTIR) spectroscopy and elemental analysis (ICP-AES). The acidity of the catalysts is measured from temperature-programmed desorption (TPD) of ammonia. Ethylation of benzene with ethanol is carried out in gas phase to test the catalytic activity. Good correlation is obtained with alkylation activity and acidity. Enhanced porosity upon pillaring allows shape selective catalysis within the pores to get ethylbenzene as the only product. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：82 / 89

页数：8

共 55 条

[1]

Baes C.F., 1976, HYDROLYSIS CATIONS

[2] ESR STUDY OF VANADIUM-DOPED ALUMINA-PILLARED AND TITANIA-PILLARED MONTMORILLONITES [J].

BAHRANOWSKI, K ;

SERWICKA, EM .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1993, 72 :153-160

[3] Effect of mineral host on surface acidity of hydroxy-Cr intercalated clays [J].

Bandosz, TJ ;

Jagiello, J ;

Schwarz, JA .

CLAYS AND CLAY MINERALS, 1997, 45 (01) :110-113

[4]

BARREW RM, 1975, ZEOLITES CLAY MINERA

[5]

Bartley G.J.J., 1988, CATAL TODAY, V2, P233

[6] SYNTHESIS AND CHARACTERIZATION OF TITANIUM PILLARED CLAYS - INFLUENCE OF THE TEMPERATURE OF PREPARATION [J].

BERNIER, A ;

ADMAIAI, LF ;

GRANGE, P .

APPLIED CATALYSIS, 1991, 77 (02) :269-281

[7]

BERNIER A, 1993, APPL CATAL, V103, P23

[8] IR STUDY OF BRONSTED ACIDITY OF AL-PILLARED MONTMORILLONITE [J].

BODOARDO, S ;

FIGUERAS, F ;

GARRONE, E .

JOURNAL OF CATALYSIS, 1994, 147 (01) :223-230

[9] SYNTHESIS AND CHARACTERIZATION OF TITANIUM-PILLARED MONTMORILLONITES [J].

BOUDALI, LK ;

GHORBEL, A ;

TICHIT, D ;

CHICHE, B ;

DUTARTRE, R ;

FIGUERAS, F .

MICROPOROUS MATERIALS, 1994, 2 (06) :525-535

[10]

BURCH R, 1988, PILLARED CLAYS CATAL, V2

← 1 2 3 4 5 6 →