Application of bifunctional macroporous manganese-cerium oxide fiber to synchronous capture and catalytic combustion of soot particles

The invention discloses application of bifunctional macroporous manganese-cerium oxide fibers to synchronous capture and catalytic combustion of soot particles. The preparation method comprises the following steps: by taking manganese salt and cerium salt as metal element sources, DMF (Dimethyl Formamide) as a solvent and PVP (Polyvinyl Pyrrolidone) as a binder, preparing a precursor fiber by adopting an electrostatic spinning method, and then drying and roasting to obtain the bifunctional macroporous manganese-cerium oxide fiber for synchronously capturing and catalytically combusting soot particles. The macroporous manganese-cerium oxide fiber disclosed by the invention has the advantages of high particulate matter capture efficiency, low soot catalytic combustion temperature, high moisture resistance and nitrogen oxide resistance and the like, and is suitable for synchronous capture and catalytic combustion of soot particulate matters in motor vehicle exhaust. 本发明公开了双功能大孔锰铈氧化物纤维同步捕获和催化燃烧碳烟颗粒物的应用。以锰盐、铈盐作为金属