Mössbauer study of transformation of Fe cations during thermal treatment of glauconite in air

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33141905" target="_blank" >RIV/61989592:15310/12:33141905 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4759486" target="_blank" >http://dx.doi.org/10.1063/1.4759486</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4759486" target="_blank" >10.1063/1.4759486</a>

Result language
angličtina
Original language name
Mössbauer study of transformation of Fe cations during thermal treatment of glauconite in air
Original language description
Thermal decomposition of glauconite in air was studied by optical microscopy, thermal analysis, X-ray diffraction, and Mössbauer spectroscopy. The glauconite structure keeps preserved during thermal treatment up to 800 °C; however, simultaneously, a progressive transformation of Fe2+ and Fe3+ ions in glauconite structure and water leaving the crystal structure are both observed inducing the symmetry lowering of the iron octahedral positions. The destruction of glauconite structure begins after heating at 900 °C and becomes more intensive with an increase in the treatment temperature. Simultaneously, with the glauconite structure destruction, iron leaving the glauconite structure oxidizes to gama-Fe2O3, which transforms to alfa-Fe2O3.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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