Hierarchical 3D Fe-doped Bi 2 MoO 6 arrays supported on a Ni foam: an effective electrocatalyst for alkaline water splitting

Fe-doped Bi 2 MoO 6 3D arrays were grown in situ on a 3D conductive Ni foam via a solvothermal route. The BMOF-5 catalyst exhibits overpotentials of 262 mV for OER and 153 mV for HER at a current density of 10 mA cm −2 .