In order to prepare electrode with low overpotential,high efficiency and stability in alkaline environment,five kinds of Co-Fe-Ce/NF electrodes are prepared via the electrodeposition method in choline chloride-urea at different deposition potentials.The surface morphology,elemental mass fraction and distribution,and elemental chemical states of the electrodes are characterized by means of SEM,EDX,and XPS,and the electrochemical performances are tested by combining linear scanning voltammetry(LSV),electrochemical impedance spectroscopy(EIS),and cyclic voltammetry(CV).Results show that Co-Fe-Ce/NF-2 electrode prepared at-1.20 V deposition potential possesses a better hydrogen evolution catalytic performance with a faster hydrogen evolution reaction kinetic process.The accelerated durability test(ADT)and timed current method(I-t)tests on the electrode show that Co-Fe-Ce/NF-2 electrode exhibits good stability in alkaline environment.
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