Iron composite biomass derived carbon-based material as well as preparation method and application thereof

The invention relates to an iron composite biomass derived carbon-based material as well as a preparation method and application thereof. The method comprises the following steps: S1, removing water from biomass water hyacinth; s2, after water is removed, the dried biomass is ground; s3, the ground powder is subjected to metal compounding; s4, the obtained product is subjected to heat treatment in inert gas, and the iron composite biomass derived carbon-based material is obtained.In addition, the invention further relates to application of the material, and the iron composite biomass derived carbon-based material has excellent performance and can be used for preparing an oxygen reduction reaction and an oxygen evolution reaction of a metal-air battery; good electrochemical performance is shown, and huge application potential and industrial value are achieved in the field of electrochemistry. 本发明涉及一种铁复合生物质衍生碳基材料及制备方法和应用，所述方法包括如下步骤：S1：将生物质水葫芦脱去水分；S2：水分脱干之后，将干燥生物质进行研磨；S3：将上述研磨之后粉末进行金属复合；S4：将所得产物在惰性气体下热处理，得到铁复合生物