Hydrous amorphous RuO 2 nanoparticles supported on reduced graphene oxide for non-aqueous Li–O 2 batteries

A composite of hydrous amorphous RuO ₂ nanoparticles as a catalyst, and reduced graphene oxide (rGO) as a catalyst support were combined and developed as a cathode material for non-aqueous Li–O ₂ batteries for the first time.