Iridium coated Co nanoparticles embedded into highly porous N-doped carbon nanocubes grafted with carbon nanotubes as a catalytic cathode for high-performance Li–O2 batteries

Ir–Co/HP-NC/CNT was prepared by a seed-mediated growth and Ir-coating process, and further used as a catalytic cathode for Li–O 2 batteries. This cell exhibits high discharge capacity, low overpotential and superior cycling life.