Under the situation of rapid economic development emissions of nitrogen oxides (NO_x) from electric power, metallurgy, chemical industry and other industries have posed a huge threat to the ecological environment and human health. Therefore, the country's NO_x emission standards are becoming more and more stringent, NO_x governance is facing severe challenges. Traditional NO_x treatment methods cannot meet increasingly stringent emission standards and the dielectric barrier discharge technology (DBD) has received widespread attention because of its advantages of safety and cleanliness, low price and simple operation. The recent research progress of NO_x removal by dielectric barrier discharge is summarized and discussed, and the NO_x conversion rate, reaction conditions and reaction mechanism are mainly reviewed in terms of reactor structure characteristics, power supply characteristics and gas components. At the same time, the conversion enhancement effect of the dielectric barrier discharge technology in cooperation with various catalysts is also summarized. Finally, challenges, obstacles and future development directions of NO_x removal using dielectric barrier discharge technology are presented.

dielectric barrier discharge  /  nitrogen oxides  /  dielectric material  /  synergistic catalysis