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Thermal decomposition of cerium triethanolamine complexes

Thermal decomposition of cerium triethanolamine complexes to cerium oxide, CeO2, in inert and oxidative atmospheres is investigated by thermogravimetry combined with infrared evolved gas analysis and the main volatiles formed during thermal decomposition are identified. Intermediate and final products are characterized by infrared spectroscopy, X-Ray diffraction and elemental analysis. Several overlapping steps occurring along the decomposition path are identified and plausible reaction pathways are presented. It will be shown that, independent of the atmosphere, decomposition starts around 200 °C but the endset temperature depends on the composition of the gas, i.e., the more inert the atmosphere, the higher the endset temperature. Finally, the effect the temperature and amount of triethanolamine used have during compound synthesis is discussed

This work was funded by Ministerio de Ciencia, Innovación y Universidades (grant number RTI2018-095853-B-C22), by the Generalitat of Catalunya (2017-SGR-1519) and by the Universitat de Girona (UdG, contract number MPCUdG2016/059)

Elsevier

Author: Zghal, Imen
Farjas Silva, Jordi
Camps Soler, Jaume
Dammak, Mohamed
Roura Grabulosa, Pere
Date: 2020 February 15
Abstract: Thermal decomposition of cerium triethanolamine complexes to cerium oxide, CeO2, in inert and oxidative atmospheres is investigated by thermogravimetry combined with infrared evolved gas analysis and the main volatiles formed during thermal decomposition are identified. Intermediate and final products are characterized by infrared spectroscopy, X-Ray diffraction and elemental analysis. Several overlapping steps occurring along the decomposition path are identified and plausible reaction pathways are presented. It will be shown that, independent of the atmosphere, decomposition starts around 200 °C but the endset temperature depends on the composition of the gas, i.e., the more inert the atmosphere, the higher the endset temperature. Finally, the effect the temperature and amount of triethanolamine used have during compound synthesis is discussed
This work was funded by Ministerio de Ciencia, Innovación y Universidades (grant number RTI2018-095853-B-C22), by the Generalitat of Catalunya (2017-SGR-1519) and by the Universitat de Girona (UdG, contract number MPCUdG2016/059)
Document access: http://hdl.handle.net/2072/372289
Language: eng
Publisher: Elsevier
Rights: Tots els drets reservats
Subject: Anàlisi tèrmica
Thermal analysis
Trietanolamina
Triethanolamine
Piròlisi
Pyrolysis
Title: Thermal decomposition of cerium triethanolamine complexes
Type: info:eu-repo/semantics/article
Repository: Recercat

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