介质阻挡放电等离子体特性及其在化工中的应用

Dielectric-barrier discharge plasma characteristics and its application in chemical engineering

阐述了介质阻挡放电(DBD)等离子体的基本特性、放电机理、理论模型、反应器类型及存在问题。评述了介质阻挡放电在物质合成、挥发性有机物处理、汽车尾气净化、材料表面处理、催化剂改性、沉积制膜以及等离子体催化协同作用在环境化工中的应用等方面的研究进展,分析了传统方法在这些方面应用的优缺点,指出通过与催化剂协同可以更好地发挥等离子体的优势。DBD等离子体技术在节约能源、降低成本、安全操作和环境保护等方面都有很大改进,是一种很有前途的新技术,并展望了DBD等离子体技术的发展前景和研究方向。

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.