Thermal treatment of mechanochemically activated kaolinite

Horvath, Erzsebet, Frost, Ray L., Mako, Eva, Kristof, Janos, & Cseh, Tamas (2003) Thermal treatment of mechanochemically activated kaolinite. Thermochimica Acta, 404(1-2), pp. 227-234.

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The mechanochemical activation of a high defect kaolinite has been studied using a combination of high-resolution thermogravimetry and DRIFT spectroscopy. The effect of grinding causes a decrease in the dehydroxylation temperature and an increase in the amount of adsorbed/coordinated water. The temperature of dehydration also increases with grinding time. It is proposed that this dehydroxylation occurs through a homogenous process involving proton transfer through point heating. The amount of adsorbed water decreases with the increase in temperature of the thermal treatment.

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ID Code: 22705
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Kaolinite, Mechanochemical activation, Differential thermogravimetric analysis
DOI: 10.1016/S0040-6031(03)00184-9
ISSN: 0040-6031
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ANALYTICAL CHEMISTRY (030100)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2003 Elsevier
Deposited On: 17 Jun 2009 13:21
Last Modified: 29 Feb 2012 12:59

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