【摘要】 在常压和室温下，研究了脉冲电晕等离子体条件下的甲烷偶联反应。从注入能量、气体总流量、Ｏ２／ＣＨ４的比率和电极表面的催化作用４个方面考察了Ｃ２烃产率的变化。结果表明，脉冲电晕等离子体作用于ＣＨ４／Ｏ２双组分体系时，较高的注入能量，适宜的气体总流量和Ｏ２／ＣＨ４的比率，是获得Ｃ２烃高产率的必要条件。另外，放电电极表面对甲烷偶联反应具有催化作用，其催化活性顺序为：Ｐｔ＞Ｐｄ＞Ｃｕ更多还原

【Abstract】 Coupling of methane utilizing pulsed corona induced plasma has been studied at atmospheric pressure and room temperature.The effects of four factors on C 2 yield are examined,i.e. power input, total flow rate,molar ratio of oxygen to methane,and catalysis of electrode materials.The results show that under pulsed corona discharge,high power input,suitable total flow rate and moderate ratio of O 2/CH 4 are advantageous to improving C 2 yield.Moreover,the electrode materials have catalysis on methane coupling and their catalytic activities follow the order:Pt>Pd>Cu.更多还原