The conversion of methane to ethylene has been investigated in a micro-DBD reactor with electrodes containing charge injector parts and excited with a negatively nano-second pulse voltage superimposed on a positive dc voltage. The effect of changing the characteristics of pulsed voltage such as pulse rise time (5–7 ns), total pulse width (12–14 ns), and pulse fall time (5–7 ns) on generation rate and products selectivity of the methane plasma has been studied. The kinetic model includes twenty species (electron, ions, radicals, and neutrals). The results showed that change in input pulse shape changes the generation rate and selectivity of neutral products. The rate of voltage change during pulse on-time significantly changed the instant C₂H₄ selectivity. With increasing the pulse rise and fall times the ethylene selectivity decreases, while the hydrogen selectivity increases. Results also showed that the electron reactions are dominant conversion channels during pulse on-time, while they had lower contributions in conversion progress during pulse off-time and the conversion process during this period is mainly governed by the radical reactions.

甲烷到乙烯的转化已经在一个微型 DBD 反应器中进行了研究，该反应器的电极包含电荷注入器部件，并用叠加在正直流电压上的负纳秒脉冲电压激发。改变脉冲电压特性如脉冲上升时间（5-7 ns）、总脉冲宽度（12-14 ns）和脉冲下降时间（5-7 ns）对甲烷生成速率和产物选择性的影响等离子体进行了研究。动力学模型包括二十种物质（电子、离子、自由基和中性物质）。结果表明，输入脉冲形状的变化会改变中性产物的生成速率和选择性。脉冲导通期间的电压变化率显着改变了瞬间 C ₂ H ₄选择性。随着脉冲上升和下降时间的增加，乙烯选择性降低，而氢气选择性增加。结果还表明，电子反应是脉冲开启期间的主要转换通道，而在脉冲关闭期间它们对转换进程的贡献较低，并且此期间的转换过程主要由自由基反应控制。