Pore structure and surface acidity evaluation of Fe-PILCs

被引：10

作者：

Balci, Suna ^{[1
]}

Gokcay, Elif ^{[1
]}

机构：

[1] Gazi Univ, Engn & Architecture Fac, Dept Chem Engn, TR-06570 Ankara, Turkey

来源：

TURKISH JOURNAL OF CHEMISTRY | 2009年 / 33卷 / 06期

关键词：

Pillared clays; delaminated clays; characterisation; surface area; surface acidity; CONCENTRATED CLAY SUSPENSIONS; IRON-PILLARED CLAY; CATALYSTS PREPARATION; AL-FE; MONTMORILLONITES; ALKYLATION; BENTONITES; ACTIVATION; COMPLEXES; OXIDATION;

D O I：

10.3906/kim-0807-17

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fe-PILCs via different conditions using smectites from Hancili (Turkey) and Wyoming (USA) were synthesised. Presaturation had little effects on the basal spacing values while it had important effects on thermal stabilities of the products. Products having basal spacing (d(001)) around 1.30 nm and surface area up to 160 m(2) g(-1) were obtained. The thermal behaviour, X-ray diffraction (XRD) patterns, and nitrogen adsorption/desorption experiments confirmed that thermally stable and micro-mesoporous products were obtained although at elevated calcination temperature. Delaminated sample with basal spacing value of 2.79 nm was obtained. Surface acidity of clay was enhanced by pillaring. Chemically sorbed pyridine Fourier transform infrared spectroscopy (FTIR) bands were preserved at elevated desorption temperatures.

引用

页码：843 / 856

页数：14

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