Design and Structure Regulation of VOCs Catalytic Oxidation Catalysts

In recent years, with the improvement of the air quality in China, traditional pollutants such as NOx and SO2 have been effectively controlled. The emission control of volatile organic compounds (VOCs) has gradually become a key to further alleviating the regional composite air pollution so far. Catalytic oxidation is one of the most promising VOCs emission reduction technologies due to its high treatment efficiency, low energy consumption, and wide applicability. The development of high-performance catalysts is crucial for this technology. The design and structural regulation of catalysts associated with mechanism study is currently a research hotspot. This paper first outlines the catalytic oxidation mechanism of VOCs. Secondly, the research progress on the structural regulation of non-noble metal catalysts is reviewed from the perspectives of single transition metal oxides, mixed metal oxides, composite metal oxides, and interface structure regulation. Based on the dispersion state, the size effect andrev support effect of noble metal nanoparticles/clusters in noble metal catalysts are summarized. The regulation strategies based on the metal-support interaction for the emerging single-atom catalysts are also discussed. Finally, this paper provides a summary and prospects for future research trends. We believe that based on deeply clarifying the structure-activity relationship, developing simple and refined structure regulation methods of catalysts and adapting to actual operating conditions and industrial scale-up is the focus of future research