3D spongy nanofiber structure Fe-NC catalysts were constructed by a graphene regulated electrospinning method. The framework of the catalysts was reconstructed into carbon nanotubes, mesopores and macropores, and most of the Fe3C is converted to Fe2N during the calcination process. All catalysts showed better electrocatalytic performances than commercial Pt/C.
Bibliographical noteFunding Information:
This work was supported by the National Natural Science Foundation of China (No. 21776027) and the Joint Research Fund of Shenyang State Key Laboratory of Materials Science (No. 20180510045).
© The Royal Society of Chemistry 2020.