The low-temperature plasma test system which based on dielectric barrier discharge (DBD) reactor was estabished, and its electrical parameters were measured by Q - V Lissajous figure. Experiments were carried out to study the effects of applied voltage peak ( Vp ), power and electric field on the volume fraction of ozone and nitrogen dioxide from the decomposing of N2/O2 mixture gas. The results show that Eg increases with the increase of Vp, while f has little effect on Eg. Covalent bonds of O2 and N2 are broken by high energy electron which produced from the low-temperature plasma reactor,leading to the synthesis of ozone and nitrogen dioxide. The volume fractions of ozone and nitrogen dioxide increase to maximal value firstly, and then decrease with increase of Vp. The volume fractions of ozone and nitrogen dioxide increase with the increase of initial oxygen volume fraction in the N2/O2 mixture gas, especially for the increase of ozone volume fraction.%通过建立介质阻挡放电型低温等离子体反应器实验系统,利用Q-V Lissaious 图形法对反应器电学参量进行测试,研究了该反应器分解O2/N2混合气时,激励峰值电压、放电功率、电场强度对生成的臭氧及二氧化氮体积分数的影响.结果表明:反应器放电功率、电场强度随激励峰值电压和放电频率的升高而增大,放电频率对电场强度的影响较小;反应器产生的高能电子可断裂O2,N2的分子键,生成O3及NO2,其体积分数均随激励峰值电压的增大先升高后降低;随着O2/N2混合气中O2初始体积分数的增大,产生的O3及NO2体积分数也相应增大,其中O3体积分数增加更为明显.
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