Publication details

Simulation and diagnostics of plasmachemical processes during microwave plasma synthesis of graphene nanosheets from ethanol

Authors

KUDRLE Vít ŠNÍRER Miroslav TOMAN Jozef KUBEČKA Martin JURMANOVÁ Jana JAŠEK Ondřej KRČMA František

Year of publication 2021
Type Article in Proceedings
Conference NANOCON 2020: 12th International Conference on Nanomaterials - Research & Application
MU Faculty or unit

Faculty of Science

Citation
Web https://doi.org/10.37904/nanocon.2020.3691
Doi http://dx.doi.org/10.37904/nanocon.2020.3691
Keywords Graphene; microwave plasma torch; OES; ethanol; modelling
Description 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.
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