Electrochromism in mesoporous nanowall cobalt oxide thin films prepared via lyotropic liquid crystal media with electrodeposition

▶ A templated electrodeposition method of mesoporous nanowall Co3O4 films. ▶ Mesoporous nanowall Co3O4 films with unique cross-linked net-like structure. ▶ Highly porous structure enhancing electrochromism. ▶ Annealing temperature greatly influences electrochromic performances.