Influence of molecular admixtures on filamentation in microwave plasma torch

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Authors	ŠNÍRER Miroslav KUDRLE Vít TOMAN Jozef JAŠEK Ondřej FALTÝNEK Jan JURMANOVÁ Jana
Year of publication	2019
Type	Article in Proceedings
Conference	46th EPS Conference on Plasma Physics
MU Faculty or unit	Faculty of Science
Citation
Web	http://ocs.ciemat.es/EPS2019PAP/pdf/O3.302.pdf
Keywords	filamentation; admixtures; hydrogen; oxygen; nitrogen; ethanol; graphene; surface wave; microwave plasma torch
Description	We investigated a filamentary regime in MW plasma torch, which used atmospheric pressure argon flowing through central electrode. Main experimental parameters were the input MW power, flowrate of argon and amount (0-10%) of admixture (oxygen, hydrogen, nitrogen). With an outlook to a graphene synthesis more complex molecular admixture (ethanol) was used, too. Fast imaging and optical emission spectroscopy were used as diagnostics.
Related projects:	Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy Studium procesu nukleace dvourozměrných uhlíkových nanostruktur v mikrovlnném plazmatu