Study of Non-Thermal DC Arc Plasma of CH_4/Ar at Atmospheric Pressure Using Optical Emission Spectroscopy and Mass Spectrometry

作     者：廖梦然 王毓 吴涵峰 李辉 夏维东 

作者机构：Department of Thermal Science and Energy EngineeringUniversity of Science and Technology of China National Synchrotron Radiation LaboratoryUniversity of Science and Technology of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2015年第17卷第9期

页      面：743-748页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(Nos.11035005,11475174,50876101) USTC-NSRL Association Funding(No.KY2090130001) 

主　　题：non-thermal plasma atmospheric pressure hydrocarbon methane argon,electrical characteristic optical emission spectra photoionization mass spectrometry 

摘      要：Non-thermal C/H/Ar plasmas are widely applied to carbonaceous material production and *** 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 CH_4/Ar were *** voltage-current characteristics were measured for different CH_4/Ar *** emission spectroscopy was employed to analyze the electron excitation temperature,gas temperature and electron density under various discharge *** hydrocarbon molecules produced in the CH4/Ar plasmas were detected with photoionization mass *** 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）×10^15 cm^-*** 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.