【作者】 张冬梅； 白敏冬； 许波； 王宁； 王燕；

【Author】 ZHANG Dong-mei,BAI Min-dong,XU Bo,WANG Ning,WANG Yan ( Environmental Engineering Research Institute, Dalian Maritime University, Dalian 116026, China)

【机构】 大连海事大学环境工程研究所；

【摘要】 利用介质阻挡强电离放电的物理方法,在常压窄间隙中获得折合场强大于300 Td、电子平均能量大于8 eV的强电场.高能电子与N₂、H₂分子发生非弹性碰撞使N₂、H₂分子电离、分解成大量的自由原子、自由离子和自由基,最终产物为NH₃和及少量的N₂H₄,NH₃的浓度可达12 500×10^-6（1.25%）,实现了常压下氨的等离子体合成.更多还原

【Abstract】 The plasma synthesis ammonia has been studied in nitrogen - hydrogen plasma using a strong ionization discharge at ambient pressure. With the new technology of dielectric barrier, the reduced field reaches 300Td in the narrow dis-charge gap, and the electrons gain the average energy of 8eV. At the same time, N2 and H2 molecules are ionized and dissociated and a large number of free atoms, ions and radicals are in non - equilibrium plasma after inelastic collisions. The final product is mainly ammonia including a small amount of hydrazine, and the yields of ammonia reaches 12 500×10-6(1. 25%) . In this way, plasma synthesis ammonia at ambient pressure is realized and a new method is provided for inorganic synthesis, which consumes little energy and simplifies the process.更多还原