A metal–organic framework derived 3D hierarchical Co/N-doped carbon nanotube/nanoparticle composite as an active electrocatalyst for oxygen reduction in alkaline electrolyte

Abstract

A 3D hierarchical Co/N-doped carbon nanotube/nanoparticle composite was successfully prepared as a high-performance ORR electrocatalyst, <italic>via</italic> pyrolysis of bimetallic Co, Zn-ZIF crystals coated on the surface of silica templates.