Thermoanalytical investigations on intercalated kaolinites

J. Kristóf, R. L. Frost, E. Horváth, L. Kocsis, J. Inczédy

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The thermal behaviour of ordered kaolinites from Hungary and Australia intercalated with potassium acetate, cesium acetate and urea has been investigated by simultaneous TG-DTG-DTA, TG-MS, Raman microscopy and XRD. Remarkable changes in the thermal decomposition pattern of the intercalates were obtained as a function of the nature of the intercalating reagents. Replacing the potassium cation to cesium leads to a change in the OH environments resulting in a more complicated dehydroxylation pattern. The urea intercalates can be decomposed completely without dehydroxylating the mineral, although further treatments are necessary to restore the original d-spacing.

Original languageEnglish
Pages (from-to)467-475
Number of pages9
JournalJournal of Thermal Analysis and Calorimetry
Volume53
Issue number2
DOIs
Publication statusPublished - Jan 1 1998

Keywords

  • Cesium acetate
  • Intercalation
  • Kaolinite
  • Mass spectrometry
  • Potassium acetate
  • Raman microscopy
  • Thermal analysis
  • Urea
  • X-ray diffraction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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