Thermal treatment of mechanochemically activated kaolinite

Erzsébet Horváth, Ray L. Frost, Éva Makó, János Kristóf, Tamás Cseh

Research output: Article

82 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)227-234
Number of pages8
JournalThermochimica Acta
Volume404
Issue number1-2
DOIs
Publication statusPublished - szept. 4 2003

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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