Hierarchically porous three-dimensional electrodes of CoMoO₄ and ZnCo₂O₄ and their high anode performance for lithium ion batteries

Ternary metal oxides have been receiving wide attention in electrochemical energy storage due to their rich redox reactions and tuneable conductivity. We present a simple solution-based method to prepare a 3D interconnected porous network of ternary metal oxide (CoMoO₄ and ZnCo₂O ₄) nanostructures on macroporous nickel foam. The open-structured networks with different degrees of porosity endow them with high surface areas of electro-active sites. The Li ion storage properties of both anodes are investigated. High rate capability and long term cycling stability are achieved for both systems.