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Impacts of TGA furnace parameters for prediction of long-term thermal stability of ionic liquids

  • The concept of maximum operation temperature is established for the prediction of the time dependent thermal stability of ionic liquids based on kinetic evaluation of thermogravimetric analysis. The influence of the furnace control parameters on the maximum operation temperature (MOT) is shown using the example of 1-methyl-3-propylimidazolium iodide ([C3C1im]I) with respect to three different parameter sets of a programmed proportional integral derivative (PID) controller of the TGA. Kinetics of thermal decomposition of [C3C1im]I have been investigated with the implementation of an improved kinetic model. The activation energy obtained using the Kissinger-Akahira-Sunose equation showed variations apparently due to the decomposition degree. The model compound is decomposed by a one-step kinetics, which results from pseudo zero order relationship of the activation energy to the conversion rate. The activation energy, pre-exponential factor, and the activation energy are strongly dependent on the parameters of TGA furnace controller.

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Author: André MeißnerORCiD, Anastasia EfimovaORCiD, Peer SchmidtORCiD
URL:https://www.sciencedirect.com/science/article/pii/S0040603121000587#!
DOI:https://doi.org/10.1016/j.tca.2021.178917
Title of the source (English):Thermochimica Acta
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2021
Tag:Ionic liquid; Thermal analysis; Thermal decomposition
Volume/Year:704
First Page:178917-1
Last Page:178917-7
Article number:178917
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Anorganische Chemie
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