Synthesis of Nitrogen‐Doped Hierarchical Carbon Derived from Water Hyacinth with High Catalytic Activity for Oxygen Reduction Reaction

In this paper, NC was prepared to be used as ORR catalyst replacing the expensive Pt/C catalyst. Our work achieved uniform N doping and the regulation of nitrogen content. It opens a new door for the synthesis of N−C catalysts using biomass as a precursor, also turns the “waste” water hyacinth into treasure.