• Cobalt nitride nanoflakes supported on Ni foam as a highperformance bifunctional catalyst for hydrogen production via urea electrolysis

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    • Keywords


      UOR; bifunctional; catalyst; HER

    • Abstract


      Substituting low theoretical potential of the urea oxidation reaction (UOR) for the high theoretical potential of water splitting at the anode (oxygen evolution reaction) is meaningful for hydrogen energy storage and conversion. In this work, a bifunctional catalyst, cobalt nitride nanoflakes supported on Ni foam (CoN NF/NF), was synthesized for both UOR and hydrogen evolution reaction (HER). A two-electrode electrolyzer (CoN NF/NF||CoN NF/NF) was constructed. To drive 100 mA/cm2, the voltage of CoN NF/ NF||CoN NF/NF only 1.698 V is required, which is much lower than that of Pt/C||IrO2 (1.860 V) and the current density can be maintained for 30 h.

    • Author Affiliations



      1. College of Chemistry and Chemical Engineering, Zhengzhou Normal University, No. 6 Yingcai Street, Zhengzhou 450044, China
      2. Zhengzhou Tobacco Research Institute of CNTC, No. 2 Fengyang Street, Zhengzhou 450001, China
      3. Faculty of General Education, Zhengzhou Technology and Business University, No. 8 Qiancheng Road, Zhengzhou 451400, China
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    • Supplementary Material

  • Journal of Chemical Sciences | News

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