Efficient hydrogen production from water splitting was crucial for sustainable energy society and yet impeded by sluggish anodic water oxidation and urea oxidation had been considered as alternative reaction due to the much lower oxidation potential. Rational design of highly efficient cost-effective electrocatalysts for urea oxidation was therefore urgent for the development of hydrogen production from overall urea oxidation. Herein, the Ni/Mo₂C@CN catalyst consisted of porous carbon shell and heterojunction Ni/Mo₂C core was constructed by an in-situ self-confinement synthesis strategy. The mutual promotion effect of Ni and Mo₂C can boost the urea oxidation and hydrogen evolution reactions at the same time. Only 1.51 V applied potential was needed to achieve stable 10 mA/cm² overall urea oxidation on the Ni/Mo₂C@CN catalyst. By considering the great stability resulted from the protection effect of the carbon shell, practical application potential of Ni/Mo₂C@CN in overall urea oxidation was achieved.

从水分解中高效制氢对于可持续能源社会至关重要，但由于阳极水氧化缓慢而受到阻碍，由于氧化潜力低得多，尿素氧化被认为是替代反应。因此，合理设计用于尿素氧化的高效低成本电催化剂对于从整体尿素氧化制氢的发展来说是迫切的。在本文中，镍/钼₂ ç@ CN催化剂由多孔碳壳和异质结的镍/钼₂ ç芯是由一个构造在-situ自我约束合成策略。Ni和Mo ₂的相互促进作用C可以同时促进尿素氧化和析氢反应。在 Ni/Mo ₂ C@CN 催化剂上实现稳定的 10 mA/cm ²整体尿素氧化仅需要 1.51 V 的外加电位。考虑到碳壳的保护作用所带来的巨大稳定性，实现了Ni/Mo ₂ C@CN在尿素整体氧化中的实际应用潜力。