Optical Emission from a Pulsed Corona Discharge and Its Associated Reactions
Optical Emission from a Pulsed Corona Discharge and Its Associated Reactions
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脉冲电晕放电的光发射及其相关反应
DOI：
10.1143/jjap.39.1343
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发表时间：
2000
影响因子：
1.5
通讯作者：
Fumiyoshi Tochikubo Teich
中科院分区：
文献类型：
--
作者：
Fumiyoshi Tochikubo Teich
为了研究用于氮氧化物转化的脉冲电晕放电早期发生的一些化学反应，我们研究了光发射的时间依赖性。人们特别关注自由基分子反应激发的物种种群的衰变时间常数。通过系统地改变微量气体成分的分压，我们估计这些特定气体成分对反应速率的贡献。我们得出结论，NO(B2Π)主要由N(2D)与N2O的反应激发，而NO(A2Σ+)和OH(A2Σ+)主要由N2(A3Σu+)的能量转移激发。根据氮的第二正带和第一负带发射，主动放电区域中的旋转温度估计为约500 K。
In order to investigate some chemical reactions occurring in the early stage of pulsed corona discharges intended for the conversion of nitrogen oxides, we studied the time dependence of optical emissions. Special attention has been paid to the decay time constants of populations of species excited by radical-molecule reactions. By systematically changing the partial gas pressure of minor gas components, we estimate the reaction rate contributions of these particular gas constituents. We conclude that NO(B2Π) is predominantly excited by the reaction of N(2D) with N2O, while NO(A2Σ+) and OH(A2Σ+) are mainly excited by the energy transfer from N2(A3Σu+). The rotational temperature in the active discharge zone was estimated to be about 500 K from the second positive and first negative band emissions of nitrogen.