Transition metal phosphides have been explored as promising active materials for sodium-ion batteries (SIBs) and hydrogen evolution reaction (HER) applications owing to their unique physical and chemical characteristics. However, they suffer from the drawbacks such as severe agglomeration, and sluggish reaction kinetics. Herein, bimetallic phosphides (Ni₂P/ZnP₄) embedded in P-doped carbon hierarchical microspheres are demonstrated with robust structural integrity, fast charge transfer, and abundant active sites. As expected, the optimally structured Ni₂P/ZnP₄ composite exhibits good electrochemical performance as an anode material in SIBs, including high specific capacity, good cycling stability and rate capability. Meanwhile, the Ni₂P/ZnP₄ composite also exhibits excellent electrocatalytic performance for HER with a small overpotential of 62 mV, a Tafel slope of 53 mV dec⁻¹, as well as excellent stability.

过渡金属磷化物因其独特的物理和化学特性，已被开发为钠离子电池（SIB）和氢释放反应（HER）应用的有前途的活性材料。然而，它们遭受诸如严重团聚和反应动力学缓慢的缺点。本文中，嵌入P掺杂的碳分级微球中的双金属磷化物（Ni ₂ P / ZnP ₄）具有强大的结构完整性，快速的电荷转移和丰富的活性位点。不出所料，最佳结构化的Ni ₂ P / ZnP ₄复合材料具有良好的电化学性能，可作为SIB中的阳极材料，包括高比容量，良好的循环稳定性和倍率性能。同时，镍₂ P / ZnP ₄复合材料还表现出优异的HER电催化性能，具有62 mV的小过电位，53 mV dec ^-1的Tafel斜率以及出色的稳定性。