Quantitative spectrochemical analysis of solution plasma in aromatic molecules. Issue 7 (26th April 2019)

• Record Type: Journal Article
• Authors: Bratescu, Maria Antoaneta; Kim, Kyusung; Saito, Nagahiro
• Is Part Of: Plasma processes and polymers. Volume 16:Issue 7(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-26
• Subjects: aromatic compounds -- carbon -- nonthermal plasma -- optical spectroscopy -- solution plasma processing; Plasma polymerization -- Periodicals; Plasma-enhanced chemical vapor deposition -- Periodicals; Plasma chemistry -- Periodicals
• DOI: 10.1002/ppap.201900012
• Languages: English
• ISSNs: 1612-8850

Abstract

Abstract: A nonthermal plasma produced at atmospheric pressure in the gas resulted from the surrounding liquid is named solution plasma (SP). A quantitative and comparative spectrochemical analysis of the plasma gas and solution in benzene, pyridine, and aniline is performed. The number densities of dicarbon and cyano radicals and hydrogen molecule from the plasma gas are measured using a cheap, straightforward, and home‐made optical set‐up. By simply modifying the optical set‐up, the molar concentration of newly formed chemical compounds is in situ obtained in the solution. The thermodynamic properties of aromatic molecules determine the electrical breakdown and the species number densities in the plasma gas. The production rate and atomic composition of carbon material are correlated with the radicals from plasma gas. Abstract : In solution plasma in three aromatic molecules: benzene, pyridine, and aniline, a quantitative spectrochemical analysis unveil the molecules and radicals from the plasma gas and newly formed compounds into the solution. Electron spin resonance and gas chromatography confirm the spectrochemical analysis. The production rate of the carbon material correlates to plasma gas composition.