Abstract:

Dielectric-barrier discharge (DBD) is a typical non-equilibrium gas discharge with AC at low temperature and atmospheric pressure.This paper presents the characteristics of dielectric-barrier discharge plasma, mechanism of discharge, theoretical models, types of reactors and its problems.Its application in synthesis of chemical products, treatment of volatile organic compounds and car exhaust gases, material surface treatment, modification of catalyst, deposition film preparation, and the technology that DBD plasma-assisted catalysis is applied in environmental chemical engineering are summarized.The strong points and disadvantages of conventional methods used in these aspects are analyzed.The advantages of DBD plasma and catalysis can be improved through the catalysis-assisted non-thermal plasma technique.The DBD plasma technology has been considered as a potential new technology for its advantages of saving energy, reducing cost, safe operation and environmental protection.Some proposals on the development and prospect of the DBD plasma technology are provided.