Fig. 5

Electrochemical investigation and charge transfer pathway of the Ni-F and Ni-W electrodes. (a) EIS Nyquist plot, and (b) and (c) Bode plots of bare and nickel silicide-covered nickel foams. (d) Schematic representation of the enhanced charge transfer pathway facilitated by bacterial inoculation on the nickel silicide nanowire-covered surface. (e) Equivalent circuit models and their corresponding parameters for Ni-F and Ni-W electrodes.