Valverde et al.(2000) recently reported on the preparation and characterization of Al-pillared smectites modified with Ce and La. The purpose of this work was to study the influence of Ce or La in Al-pillared clays on the thermal and the hydrothermal stability of these materials, previously not studied extensively. In addition, the physicochemical properties of Al-pillared clays modified with Ce or La were investigated using two bentonites.

...

The structure of these materials was studied by X-ray diffraction. Isotherms were determined by N2 adsorption. Thermal stability was determined using thermogravimetric (TG) measurements and ammonia-TPD (temperature programmed desorption) was used...

First Page Preview

First page PDF preview
You do not currently have access to this article.