等离子体催化氧化VOCs的表面氧化及带电影响机理研究

聚焦国务院的《打赢蓝天保卫战三年行动计划》中挥发性有机化合物（VOCs）控制的国家重大需求，作为VOCs末端控制用的等离子体催化氧化技术的开发迫在眉睫。本项目将发挥申请者在等离子体原位红外表征和等离子体催化剂评价等方面的优势，解决以下三大关键科学问题：1）等离子体条件下氧原子与臭氧分子对表面活性氧的贡献以及表面活性氧生成规律、2）碳氢化合物分解产物和催化剂表面活性氧的反应特性和3）催化剂带电对其性能的影响；研究等离子体条件下催化剂表面活性氧的生成机理、表面活性氧对VOCs氧化的贡献和催化剂带电对VOCs催化氧化性能的影响，填补等离子体条件下离子和电子对催化剂性能影响研究的空白，完善等离子体催化氧化VOCs的过程机理；开发高效稳定的等离子体催化剂和优化反应条件；为等离子体催化氧化VOCs末端控制技术的应用提供理论和技术支撑。

Focusing on the control of volatile organic compounds (VOCs) which is the national major needs on the State Council's "Three-Year Action Plan for the Defense Battle for Blue Skies", the development of plasma-catalytic oxidation technology for VOCs end control is of great urgency. This project will give full play upon the advantages of the applicant in the aspects of in-situ plasma infrared characterization and plasma catalysis evaluation, to solve the following three key scientific issues: 1) the contribution of oxygen atoms and ozone molecules to the surface reactive oxygen and the generation relation of the surface reactive oxygen under plasma condition, 2) the reaction characterization of hydrocarbon decomposition products and the surface reactive oxygen on the catalyst surface, and 3) the effect of charged catalyst on its performance; to study the formation mechanism of reactive oxygen on the catalyst surface under plasma condition, the contribution of surface reactive oxygen to the oxidation of VOCs, and the influence of charged catalyst on the performance of VOCs catalytic oxidation, to fill up the research blank of the influence of ions and electrons on the performance of plasma catalysts, to complete the process mechanism of VOCs plasma-catalytic oxidation; to develop a highly-efficient and stable plasma catalyst and to optimize reaction condition; to provide theoretical and technical support for the application of plasma-catalytic oxidation technology for VOCs end control.