Abstract
Porous iron–nickel hydroxyphosphate and iron–cobalt hydroxyphosphate electrodes are prepared by one-step electrodeposition method. The as-prepared iron–nickel hydroxyphosphate and iron–cobalt hydroxyphosphate electrodes show excellent performance for water splitting with high catalytic activity towards the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), with a lower overpotential of 220 and 235mV for the OER and 145 and 160mV for the HER, respectively. Moreover, two-electrode electrolyzer using iron-nickel hydroxyphosphate as both the anode and cathode requires a cell voltage of 1.65V while iron–cobalt hydroxyphosphate requires cell voltage of 1.67V to gain current density of 10mAcm−2.
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