期刊
PLASMA SCIENCE & TECHNOLOGY
卷 17, 期 9, 页码 743-748出版社
IOP PUBLISHING LTD
DOI: 10.1088/1009-0630/17/9/05
关键词
non-thermal plasma; atmospheric pressure; hydrocarbon; methane; argon; electrical characteristic; optical emission spectra; photoionization mass spectrometry
资金
- National Natural Science Foundation of China [1103005, 11475174, 50876101]
- USTC-NSRL Association Funding [KY2090130001]
Non-thermal C/H/Ar plasmas are widely applied to carbonaceous material production and processing. In this work, plasma parameters and gaseous species of the atmospheric non-thermal C/H/Ar plasmas produced by an atmospheric-pressure DC arc discharge generator in CH4/Ar were investigated. The voltage-current characteristics were measured for different CH4/Ar ratios. Optical emission spectroscopy was employed to analyze the electron excitation temperature, gas temperature and electron density under various discharge conditions. The hydrocarbon molecules produced in the CH4/Ar plasmas were detected with photoionization mass spectrometry. The optical spectral results demonstrated that the electron excitation temperature was 0.4-1 eV, the gas temperature was 2800-4200 K and the electron density was in the range of (5-20) x10(15) cm(-3). The mass spectrum indicated that a variety of unsaturated hydrocarbons (C2H4, C3H6, C6H6, etc.) and several highly unsaturated hydrocarbons (C4H2, C5H6, etc.) were produced in the non-thermal arc plasmas.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据