Facile synthesis of spinel CuCo2O4 nanocrystals as high-performance cathode catalysts for rechargeable Li–air batteries

Abstract

CuCo₂O₄ nanoparticles have been synthesized by a simple and low-cost urea combustion method and characterized as bifunctional catalysts for non-aqueous Li–air batteries. The resulting CuCo₂O₄ catalyst has been demonstrated to effectively reduce the charge–discharge polarization of Li–air batteries in a simulated air environment (80% Ar : 20% O₂).