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Methane Conversion in a N 2 CH 4 Radiofrequency Discharge
Author(s) -
Gautier Thomas,
Carrasco Nathalie,
Stefanovic Ilija,
Sikimic Brankica,
Cernogora Guy,
Winter Jörg
Publication year - 2014
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201300158
Subject(s) - methane , absorbance , plasma , analytical chemistry (journal) , carbon fibers , yield (engineering) , infrared spectroscopy , infrared , materials science , gas phase , spectral line , chemistry , environmental chemistry , optics , organic chemistry , metallurgy , chromatography , physics , quantum mechanics , astronomy , composite number , composite material
The carbon conversion in a N 2 CH 4 radiofrequency (RF) discharge is investigated by analyzing both the gas phase and the dust produced. HCN is identified as the main reactive product and both HCN and NH 3 are quantified. This quantification allows determining the carbon conversion yield from CH 4 to HCN, which appears to be surprisingly low. The comparison of the infrared absorbance spectra between dust produced in two similar RF plasma setups emphasizes small differences on the CH 3 /CH 2 bonds ratio in the samples. This difference is explained by the aging processes of dust within the plasma.