3-D N-doped porous graphene-like network and vanadium nitride co-promoted Pt electrocatalyst with high activity and stability for the oxygen reduction reaction

摘要

A three dimensional (3D) N-doped porous graphene and vanadium nitride co-promoted Pt (3DNPG/VN/Pt) electrocatalyst was first pre- sented in this work. Such multi-component catalysts exhibited supe- rior performance for the oxygen reduction reaction (ORR). The mass activity of 3DNPG/VN/Pt is 535mAmg~(-1) Pt (after IR correction),which is 4.35 times as high as that of commercial Pt/C (123 mA mg~(-1) Pt). Higher stability of 3DNPG/VN/Pt is also demonstrated in comparison with the commercial Pt/C.