The influence of the composition on the thermal and acid characteristics of multi-component oxide pillared montmorillonite

被引：27

作者：

Flego, C

Galasso, L

Millini, R

Kiricsi, I

机构：

[1] Eniricerche SpA, I-20097 San Donato Milanese, MI, Italy

[2] Attila Jozsef Univ, Dept Appl Chem, H-6720 Szeged, Hungary

来源：

APPLIED CATALYSIS A-GENERAL | 1998年 / 168卷 / 02期

关键词：

pillared clays; montmorillonite; surface area; interlayer distance; acidity;

D O I：

10.1016/S0926-860X(97)00362-1

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：

Pillared clays were prepared by intercalation in a Wyoming montmorillonite with a partially hydrolyzed aluminum chloride solution containing Ce+3 ions as second, and Co+2, or Ni+2, or Zn+2, or Mg+2 ions as third component. These multicomponent pillared materials were investigated by Fourier Transform Infra-Red (FT-IR) spectroscopy, X-ray diffraction (XRD), nitrogen (77 K) and ammonia (323 K) adsorption, thermogravimetric (TG) analysis and acidity measurement in order to determine both thermal stability and acidity. The catalyst obtained from a pillaring mixture of three cations (AlCeMg-PILC) showed the most interesting characteristics. (C) 1998 Elsevier Science B.V.

引用

页码：323 / 331

页数：9

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