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The Influence of a Hydrothermal Treatment using Microwave Heating on the Crystallinity of Layered Double Hydroxides

✍ Scribed by S. Möhmel; I. Kurzawski; D. Uecker; D. Müller; W. Geßner

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
174 KB
Volume
37
Category
Article
ISSN
0232-1300

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✦ Synopsis

The Influence of a Hydrothermal Treatment using Microwave Heating on the Crystallinity of Layered Double Hydroxides Differently synthesised layered double hydroxides (LDH) were characterised by using XRD, N 2 adsorption, DTA/TG and 27 Al NMR. The results of these investigations are discussed with respect to the crystallinity and purity of the material in dependence on the preparation method (without aging, aging at 20°C, aging under hydrothermal conditions using microwave heating). It is shown that microwave heating is a suitable method to prepare well crystallised LDH without impurities in the form of e.g. Mg(OH) 2 and Al(OH) 3 and with a sufficient specific surface area within acceptable times.

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