Electrocatalytic urea oxidation (UOR) has attracted significant interest as a promising anodic half-reaction to replace sluggish oxygen evolution reaction (OER) toward water splitting. However, the activation and decomposition of urea molecule maintains a challenge during electrocatalytic process because of its 6e^- oxidation procedure. Herein, Ni nanoparticles decorated NiMoO_x nanorod (Ni/NiMoO_x) electrocatalyst with abundant heterojunction interfaces is fabricated and the density functional theory (DFT) calculation testifies that the interfaces are favorable for enhancing the conductivity and modulating the surface polarization of Ni/NiMoO_x, thus improving its UOR’s activity. The Ni/NiMoO_x performs superb electrocatalytic capacities toward UOR with a potential of 1.355 V (vs. RHE) at 20 mA cm^-2, and HER with an overpotential of 98 mV at 10 mA cm^-2. A hybrid two-electrode water splitting cell is further assembled via applying the Ni/NiMoO_x as both anodic and cathodic electrodes with presence of 0.33 M urea, delivering 50 mA cm⁻² at voltage of 1.589 V. The findings help to provide a reliable strategy for rational reconstruction of Ni based metal oxide with rich interfaces for diverse electrocatalytic reactions.

电催化尿素氧化（UOR）作为一种有前途的阳极半反应来取代缓慢的析氧反应（OER），引起了人们的极大兴趣。然而，由于其6e-氧化过程，尿素分子的活化和分解在电催化过程中仍然存在^挑战。在此，制备了具有丰富异质结界面的Ni纳米颗粒修饰的NiMoO _x纳米棒（Ni/NiMoO _x）电催化剂，密度泛函理论（DFT）计算证明该界面有利于提高Ni/NiMoO _x的电导率和调节表面极化。 ，从而提高其 UOR 的活动。Ni/NiMoO _x^{在 20 mA cm -2}时对 UOR 具有 1.355 V (与RHE)的电势和在 10 mA cm ^-2时对 HER 具有 98 mV 的过电位表现出极好的电催化能力。_{通过将 Ni/NiMoO x}用作阳极和阴极电极并在 0.33 M 尿素的存在下进一步组装混合双电极水分解电池，在 1.589 V 的电压下提供 50 mA cm ^-2的电流。这些发现有助于提供可靠的具有丰富界面的镍基金属氧化物的合理重建策略，可用于多种电催化反应。