Among transition metal phosphides, CoNiP was considered to be the most promising electrocatalyst for hydrogen evolution reaction (HER) to replace the precious metal platinum for its excellent catalytic performance and durability. In this work, an approach combining impregnation with calcination and phosphorization was used to prepare highly dispersed CoNiP nanoparticles on nitrogen-doped carbon nanotubes (NCNTs). The CoNiP/NCNTs catalysts exhibited the advantages of low overpotential and high durability. The content of sodium hypophosphite as phosphorization agent was a crucial factor to affect the performance of the catalysts. The optimized CoNiP/NCNTs with an appropriate content of sodium hypophosphite exhibited best performance with an onset-overpotential of 44 mV and a overpotential of 75 mV at a current density of 10 mA cm⁻² in 0.5M H₂SO₄. After the chronopotentiometry measurement for 24h, the overpotential presented a decrease of only 6 mV, indicating its excellent durability.

在过渡金属磷化物中，CoNiP因其出色的催化性能和耐用性而被认为是最有希望的氢发生反应（HER）取代贵金属铂的电催化剂。在这项工作中，将浸渍，煅烧和磷化相结合的方法用于在氮掺杂碳纳米管（NCNT）上制备高度分散的CoNiP纳米颗粒。CoNiP / NCNTs催化剂具有低过电位和高耐久性的优点。次磷酸钠作为磷化剂的含量是影响催化剂性能的关键因素。具有适当含量的次磷酸钠的优化CoNiP / NCNT表现出最佳性能，在10 mA cm的电流密度下，其起始过电势为44 mV，过电势为75 mV。在0.5MH ₂ SO _4中为^-2。计时电位法测量24小时后，过电势仅下降了6 mV，表明其出色的耐久性。