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Open Access Green as soon as Postprint is submitted to ZB.
Emanation thermal analysis study of Na-montmorillonite and montmorillonite saturated with various cations.
J. Therm. Anal. Calorim. 83, 617-623 (2006)
Emanation thermal analysis (ETA) and thermogravimetry measured in the range 20-1000 degrees C was used to characterize the thermal behaviour of Na-montmorillonite (Upton Wyoming, USA) and homoionic montmorillonite samples prepared by saturation with cations Li+ , Mg2+, Al3+, respectively. It was confirmed that the presence of cations used for montmorillonite saturation (Li+, Mg2+, Al3+) influenced the thermal behaviour of the samples. The results that indicated the decrease of radon release rate corresponding to a collapse of the interlayer space between the silicate sheets after water release and the crystallization of meta-montmorillonite in the respective temperature intervals were compared. From the ETA results it followed that the thermal stability of intermediate microstructure depends on the type of exchanged cation. A mathematical model was used to evaluate the ETA data.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Emanation thermal analysis; meta-montmorillonite; microstructure; Na-montmorillonite; saturation with Li+;Mg2+;Al3+; thermal behaviour; thermogravimetry
ISSN (print) / ISBN
1388-6150
e-ISSN
1588-2926
Quellenangaben
Volume: 83,
Issue: 3,
Pages: 617-623
Publisher
Springer
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Ecological Chemistry (IOEC)
Cooperation Group Comprehensive Molecular Analytics (CMA)
PPM-MEX-Molecular EXposomics (MEX)
Cooperation Group Comprehensive Molecular Analytics (CMA)
PPM-MEX-Molecular EXposomics (MEX)