Ozone Generation by a DC Driven Micro-Hollow Cathode Discharge in Nitrogen-Mixed Oxygen Flow
Ozone Generation by a DC Driven Micro-Hollow Cathode Discharge in Nitrogen-Mixed Oxygen Flow
复制标题
氮气混合氧气流中直流驱动微空心阴极放电产生臭氧
DOI：
10.1143/jjap.43.6381
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发表时间：
2004
影响因子：
1.5
通讯作者：
S. Ishii
中科院分区：
文献类型：
--
作者：
A. Yamatake;K. Yasuoka;S. Ishii
研究了氮气-氧气混合气流中直流驱动微型空心阴极放电的臭氧生成特性。在纯氧条件下，臭氧浓度为13.7 g/Nm3，效率为97 g/kWh。然而，在4%和80%的n2混合氧气体中，臭氧浓度分别为8.2 g/Nm3和25 ppm臭氧。有一个阈值比能，超过这个比能，臭氧浓度显著下降。高能电子解离氮分子，产生NO和NO2，加速了高功率密度等离子体（如微空心阴极放电）中臭氧的分解。
The ozone generation characteristic of a DC driven micro-hollow cathode discharge was studied in nitrogen-mixed oxygen gas flow. An ozone concentration of 13.7 g/Nm3 was obtained at an efficiency of 97 g/kWh in pure oxygen. However, ozone concentrations of 8.2 g/Nm3 and 25 ppm ozone were obtained in gas mixtures of 4% and 80% N2-mixed oxygen gases, respectively. There was a threshold specific energy above which ozone concentration markedly decreased. High-energy electrons dissociate the nitrogen molecules and generate NO and NO2 which accelerate the ozone decomposition in high-power-density plasmas such as a micro-hollow cathode discharge.