C₂H₂-SCR of NO_x over one-stage dielectric barrier discharge (DBD) plasma system combined with Ag modified alumina catalyst at excess oxygen was carried out. NO_x and C₂H₂ conversions and CO_x selectivity dependence on reaction temperature and discharge voltage were investigated systematically. At low temperatures, a synergistic effect of HC-SCR of NO_x in one-stage DBD plasma and 2 wt% Ag/Al₂O₃ catalyst was clearly observed. The improvement on the NO+O₂ co-adsorption and formation of more active nitrate species adsorbed on 2 wt% Ag/Al₂O₃ catalyst by plasma was analyzed by MS-TPD and TPSR methods.

中文翻译：

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一级介质阻挡放电等离子体和Ag / Al ₂ O ₃催化体系对NO _x的C ₂ H ₂ -SCR的协同效应

在过量的氧气下，在与Ag改性的氧化铝催化剂结合的一级介电势垒放电（DBD）等离子体系统上，进行了NO _x的C ₂ H ₂ -SCR 。系统研究了NO _x和C ₂ H ₂转化率以及CO _x选择性对反应温度和放电电压的依赖性。在低温下，NO的HC-SCR的协同效应_X在单级DBD等离子体和2重量％的Ag / Al的₂ ö ₃催化剂清楚地观察到。NO + O ₂共吸附的改进以及2wt％Ag / Al ₂上吸附的更多活性硝酸盐类的形成用MS-TPD和TPSR方法分析了血浆中的O ₃催化剂。