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.
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