Formation of positive ions in hydrocarbon containing dielectric barrier discharge plasmas

被引：2

作者：

Mihaila, Ilarion ^{[1
]}

Pohoata, Valentin ^{[1
]}

Jijie, Roxana ^{[1
]}

Nastuta, Andrei Vasile ^{[1
,2
]}

Rusu, Ioana Alexandra ^{[1
]}

Topala, Ionut ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Fac Phys, Iasi Plasma Adv Res Ctr IPARC, Bd Carol 1 11, Iasi 700506, Romania

[2] Grigore T Popa Univ Med & Pharm Iasi, Fac Med Bioengn, Dept Biomed Sci, M Kogalniceanu 9-13, Iasi 700454, Romania

来源：

ADVANCES IN SPACE RESEARCH | 2016年 / 58卷 / 11期

关键词：

Atmospheric pressure plasma; Hydrocarbons; Positive ions mass spectrometry; ATMOSPHERIC-PRESSURE; LABORATORY ASTROCHEMISTRY; GAS-MIXTURES; CHEMISTRY; SPECTROSCOPY; SPECTROMETRY; MOLECULE; HYDROGEN;

D O I：

10.1016/j.asr.2016.08.010

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Low temperature atmospheric pressure plasma devices are suitable experimental solutions to generate transitory molecular environments with various applications. In this study we present experimental results regarding the plasma chemistry of dielectric barrier discharges (DBD) in helium - hydrogen (0.1%) - hydrocarbons (1.2%) mixtures. Four types of hydrocarbon gases were studied: methane (CH4), ethane (C2H6), propane (C3H8), and butane (C4H10). Discharge diagnosis and monitoring was assured by electrical measurements and optical emission spectroscopy. Molecular beam mass spectrometry is engaged to sample positive ions populations from two different plasma sources. Dissociation and generation of higher-chain and cyclic (aromatic) hydrocarbons were discussed as a function of feed gas and discharge geometry. We found a strong influence of these parameters on both molecular mass distribution and recombination processes in the plasma volume. (C) 2016 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：2416 / 2423

页数：8

共 48 条

[1] Gas-phase ion dynamics and chemistry [J].