Encapsulation of Fe2P-Co2P nanoparticles in N-doped biomass-based carbon and carbon nanotube composite as an efficient oxygen reduction electrocatalyst

Constructing economical and efficient electrocatalysts for oxygen reduction reaction (ORR) is very important to develop clean energy technologies, such as fuel cells and metal-air batteries. In this work, the Fe2P-Co2P embedded in N-doped biomass-based carbon and carbon nanotube hybrid (Fe2P-Co2P/NCB-CNT) with plenty of interfacial structure was successfully fabricated using a green strategy. The satisfactory surface area, hierarchical porous structure, and the synergistic effect between Fe2P-Co2P nanoparticles and nitrogen-doped carbon composite substrate make the Fe2P-Co2P/NCB-CNT exhibiting excellent catalytic activity and stability for ORR.