Confined Fe3O4-carbon dots catalyzed fabrication of hierarchical Fe3C/Fe-CNT catalysts for efficient oxygen reduction
Abstract
Confined Fe3O4-CDs within ZIF crystal matrix prevents the aggregation of metal nanoparticles and facilitates the fabrication of Fe3C/Fe-CNT catalysts by one-step pyrolysis at 900 ℃ in the absence of H2 atmosphere.