SIMULATION AND DIAGNOSTICS OF PLASMACHEMICAL PROCESSES DURING MICROWAVE PLASMA SYNTHESIS OF GRAPHENE NANOSHEETS FROM ETHANOL

1 KUDRLE Vít
Co-authors:
1 SNIRER Miroslav 1 TOMAN Jozef 1 KUBEČKA Martin 1 JURMANOVÁ Jana 1 JAŠEK Ondřej 2 KRČMA František
Institutions:
1 Department of Physical Electronics, Faculty of Science, Masaryk University, Brno, Czech Republic, EU, kudrle@sci.muni.cz
2 Institute of Physical and Applied Chemistry, Brno University of Technology, Brno, Czech Republic, EU
Conference:
12th International Conference on Nanomaterials - Research & Application, Brno, Czech Republic, EU, October 21 - 23, 2020
Proceedings:
Proceedings 12th International Conference on Nanomaterials - Research & Application
Pages:
57-62
ISBN:
978-80-87294-98-7
ISSN:
2694-930X
Published:
28th December 2020
Proceedings of the conference have been sent to Web of Science and Scopus for evaluation and potential indexing.
Metrics:
38 views / 21 downloads
Abstract

Plasma synthesis by ethanol decomposition in microwave atmospheric torch is a simple, efficient, single-step scalable method suitable for volume production of graphene nanosheets. In our work, we studied influence of microwave power on several plasma parameters (e.g. gas temperature, concentration of active species) by optical emission spectroscopy (OES), Fourier transform infrared spectrometry (FTIR) and mass spectrometry (MS) to better understand the process of precursor decomposition and graphene formation in the gas phase. We observed significant change in kinetics and influence of input power on ethanol decomposition routes. Results were compared with theoretical model comprising hydrodynamics, plasma, heat transfer and chemical kinetics.

Keywords: Graphene, microwave plasma torch, OES, ethanol, modelling

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Scroll to Top