The electrochemical urea oxidation reaction (UOR) is useful for the simultaneous elimination of urea-rich wastewater and generation of hydrogen. In this work, we demonstrated the synthesis of NiCoFe-LDH nanosheets supported on 3D Ni foam substrates by...
The electrochemical urea oxidation reaction (UOR) is useful for the simultaneous elimination of urea-rich wastewater and generation of hydrogen. In this work, we demonstrated the synthesis of NiCoFe-LDH nanosheets supported on 3D Ni foam substrates by one step hydrothermal method. Benefiting from the synergism of compositional and structural merits, the resultant self-supported NiCoFe-LDH/NF composite exhibited excellent electrocatalytic performance for UOR. Significant enhancement of electrocatalytic activity of NiCoFe-LDH/NF was witnessed because of the doped Fe. Compared with the parent NiCoFe-LDH/NF, the optimized NiCoFe-LDH/NF exhibited a lower potential of 1.337 V at 25 mA cm<sup>-2</sup> with a smaller Tafel slope of 43 mv dec-1 in 1 M KOH containing 0.33 M urea.