“…On the one hand, researchers have composite TiO 2 with high conductive carbon materials, including graphene, carbon nanotubes, graphitic carbon, N‐doped carbon, and so on. On the other hand, TiO 2 is usually coupled or doped with high capacity materials, such as Nb, Ni, Si, Sb, MnO 2 , Co 3 O 4 , etc. Although remarkable results have been achieved, these fabrication methods were still complicated and costly.…”