Though MoS₂ has been regarded a promising alternative to Pt for catalyzing hydrogen evolution reaction (HER), a transition from its natural poorly conductive 2H phase to metastable 1T phase is necessary, which often requires harsh experimental conditions. Herein, using a metal-organic framework (MOF) material (UiO-66) as sacrificing template, we proposed a facile solvothermal strategy to synthesize C/ZrO₂@MoS₂ nanocomposites whose morphology and phase could be effectively engineered simply by controlling reaction time. The optimized double yolk-shell structure allowed a stable hybridization of 1T- and 2H–MoS₂, which exhibited improved HER activity (overpotential of 55 mV at 10 mA/cm² and 58 mV/dec for Tafel slope) and considerable durability. Synergism of ZrO₂–MoS₂ heterointerface induced active sites and energetic favorable phase mixing of MoS₂ is considered responsible for the sufficient electrocatalytic capability of our composite. Our work may offer new scientific insights into a cost-effective method for further enhancing the HER performance of MoS₂-based nanohybrids.

尽管MoS ₂被认为是催化氢释放反应（HER）的Pt的有前途的替代品，但从其天然的导电性差的2H相到亚稳的1T相的过渡是必需的，这通常需要苛刻的实验条件。在本文中，我们以金属有机骨架（MOF）材料（UiO-66）为牺牲模板，提出了一种简便的溶剂热策略来合成C / ZrO ₂ @MoS ₂纳米复合材料，只需控制反应时间即可有效地制备其形貌和相。优化的双卵黄壳结构可实现1T-和2H-MoS ₂的稳定杂交，从而表现出更高的HER活性（在10 mA / cm ^2时过电势为55 mV对于Tafel斜率而言为58 mV / dec）和相当长的耐久性。ZrO ₂ -MoS ₂异质界面诱导的活性位点的协同作用和MoS _2的高能有利相混合被认为是我们复合材料足够的电催化能力的原因。我们的工作可能会为进一步提高基于MoS ₂的纳米杂化物的HER性能的经济有效方法提供新的科学见解。