Co3O4 Nanomaterials in Lithium-Ion Batteries and Gas Sensors

Co3O4 nanotubes, nanorods, and nanoparticles are used as the anode materials of lithium‐ion batteries. The results show that the Co3O4 nanotubes prepared by a porous‐alumina‐template method display high discharge capacity and superior cycling reversibility. Furthermore, Co3O4 nanotubes exhibit excellent sensitivity to hydrogen and alcohol, owing to their hollow, nanostructured character. Co3O4 nanotubes (see Figure), nanorods, and nanoparticles are used as the anode materials of lithium‐ion batteries. The results show that the Co3O4 nanotubes prepared via a porous alumina‐template method display high discharge capacity and superior cycling reversibility. Furthermore, Co3O4 nanotubes exhibit excellent sensitivity to hydrogen and alcohol owing to their hollow nanostructured character.