In the study, the enhanced electrochemical mechanism of FeOOH/ Zn(OH)2/CoS ferromagnetic nanocomposite in magnetic field is proposed by combining the Stern double layer model with zeta potentials. The promotion of electrolyte ions transfer by the additional magnetic field generated after FZC magnetisation, the change in Warburg impedance and the magnetohydrodynamics effect for the electrochemical performances of FZC nanocomposites are investigated, systematically. Abstract The FeOOH/Zn(OH)2/CoS (FZC) nanocomposites are synthesized and show the ...