| abstract |
The invention discloses a manganese oxide catalyst, a preparation method and application thereof, and belongs to the technical field of manganese oxide catalyst preparation. The morphology of the manganese oxide catalyst is nanorods, nanowires and nanosheets, and its crystal forms are pyrolusite, cryptokaleite and permanganite respectively. The catalysts of each crystal form are prepared by hydrothermal reaction and calcination using different raw materials. The raw materials used are cheap and easy to obtain, the resources are abundant, the preparation process is simple and fast, and can be mass-produced; the energy consumption is low, the pollution is small, and the environment is friendly. The catalyst has higher DOC reactivity for diesel vehicles and low light-off temperature; it has good potential in diesel exhaust aftertreatment applications. |