1. The Key Laboratory of Advanced Materials of Ministry of Education; School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China 2. Department of Physics and Atmospheric Science & Department of Chemistry, Dalhousie University, Halifax, Canada. 3. School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China 4. Advanced Materials Institute, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
Light rare-earth oxides such as La, Ce-containing oxides were widely applied in catalysis. The present review mainly sumarized the research progress of ceria-based catalytic materials in air pullotion purifaction, including automotive exhaust purification, industrial denitrification, and catalytic combustion of volatile organic compounds (VOCs). For automotive emission control, improving the stablity of CeO2-based cataysts as well as the utilization of the precious metals was critical for prolonging the lifetime of the catalysts. For NOx and soot elimination, using rare earth oxides, especially CeO2, to improve the low-temperature activity, anti-poisoning performance and hydrothermal stability of the catalysts was a research hotspot. For denitrification in stationary source, due to the characteristics of high efficiency, non-toxicity and no secondary pollution on CeO2-based cataysts, it had a potential for these catalysts to gradually replace those high toxic vanadium-titanium catalysts. For VOCs catalytic combustion, CeO2 materials had also been proved to own good catalytic oxidation ability. The purpose of this review was to help researchers in this field to understand the role and application potential of cerium-based rare earth catalytic materials in air pollution control. It also provided a reference for the further scientific design and application on high-performance catalysts.