3D hierarchical porous CuS flower-dispersed CNT arrays on nickel foam as a binder-free electrode for supercapacitors

To fabricate excellent electrochemical supercapacitors, 3D porous copper sulfide flower dispersed carbon nanotube on nickel foam (CuS–CNTs@NF) with high energy density and stability were synthesized <italic>via</italic> a simple one-step solvothermal method.