UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2022-07-01 16:18

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Conference: Bucharest University Faculty of Physics 2019 Meeting


Section: Physics and Technology of Renewable and Alternative Energy Sources


Title:
Thermogravimetric analysis of carbon materials


Authors:
Andrea LORINCZI (1), Adriana BALAN (2)


Affiliation:
1) University of Bucharest, Faculty of Physics, Bucharest-Măgurele, Romania

2) University of Bucharest, Faculty of Physics, 3Nano-SAE Research Centre, 405 Atomistilor str., PO Box MG-38, Bucharest-Măgurele, Romania


E-mail
andronie@3nanosae.org


Keywords:
Carbon materials, thermal analysis, activation energy


Abstract:
In carbon material research, thermal analysis in an important tool for understanding basic processes like carbonization of precursors, oxidation of carbonaceous materials, activation and surface functional groups. The information obtained through thermal analysis provides useful instructions for improving the functions and even developing new functions of carbon materials. In particular, thermogravimetric analysis (TG) of carbon materials allows the evaluation of decomposition, oxidation, or dehydration processes. Particular attention must be paid to operating parameters: instrument, heating rate, atmospheric gas, flow rate of the gas, sample mass, etc., as they can profoundly affect TG curve. We propose a detailed study of how to select the operating conditions according to the physical parameters to be studied. Furthermore, a comparative study was carried out on the theoretical models used to estimate the activation energy of the carbon black decomposition process.


Acknowledgement:
This work was supported by the Romanian Space Agency, program STAR, project no. 134/2017.