Cerium dioxide(CeO2)has excellent oxygen storage and release properties,oxygen mobility and abundant surface defects,and is easy to form metal-carrier strong interaction to stabilize precious metal particles.As an active component and carrier catalyst,CeO2 is widely used in the oxidation elimination of environmental pollutants.Single CeO2 has poor catalytic activity and thermal stability.Loading,doping and composite methods are often used to regulate the surface interface properties and microstructure to improve its catalytic performance and thermal stability.In this paper,the surface interface regulation strategies and catalytic mechanisms of cerium based catalysts in recent years were reviewed,and the effects of interface effects and interionic synergies on catalytic oxidation of small molecular pollutants were analyzed.
关键词
催化化学/铈基催化剂/表界面结构/催化氧化/小分子污染物
Key words
catalytic chemistry/cerium based catalyst/table interface structure/catalytic oxidation/small molecule pollutant
维普
万方数据