ISSN:
1572-8943
Keywords:
emanation thermal analysis (ETA)
;
goethite
;
grinding
;
mechanochemical decomposition
;
nanosized hematite particles
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Hematite nanoparticles of narrow size distribution were prepared by grinding of goethite. Intermediate and final products of grinding were characterised by different techniques, including the less-common emanation thermal analysis (ETA). ETA was shown to be a useful technique for characterising processes of surface annealing, initial sintering and growth of hematite particles under in situ conditions of thermal treatment. A good agreement was found between results of ETA, TG, XRD, IR spectrometry, transmission electron microscopy and scanning electron microscopy, used for characterisation of thermal behaviour of the goethite samples ground for varying time (0–70 h).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1010180313136
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