It is still a lack of bifunctional catalysts for ammonia oxidation reaction (AOR) and hydrogen evolution reaction (HER) due to their different reaction mechanisms. In this work, P is doped into PtZn alloy by calcination with NaH₂PO₂ as P source to induce the lattice tensile strain of Pt and the electronic interaction between P and Zn, which optimizes the AOR and HER activity simultaneously. The sample with the optimal P content can drive the AOR peak current density of 293.6 mA·mg_Pt⁻¹, which is almost 2.7 times of Pt. For HER, the overpotential at −10 mA·cm⁻² is only 23 mV with Tafel slope of 34.1 mV·dec⁻¹. Furthermore, only 0.59 V is needed to obtain 50 mA·mg_Pt⁻¹ for ammonia electrolysis under a two-electrode system. Therefore, this work shows an ingenious method to design bifunctional catalysts for ammonia electrolysis.

由于氨氧化反应（AOR）和析氢反应（HER）反应机理不同，目前仍缺乏双功能催化剂。_{本工作以NaH 2} PO ₂作为P源，通过煅烧将P掺杂到PtZn合金中，诱导Pt的晶格拉伸应变以及P和Zn之间的电子相互作用，从而同时优化AOR和HER活性。具有最佳P含量的样品可以驱动AOR峰值电流密度为293.6 mA·mg _Pt ^-1，几乎是Pt的2.7倍。对于HER，-10 mA·cm ^-2时的过电势仅为23 mV，塔菲尔斜率为34.1 mV·dec ^-1。此外，仅需0.59 V即可获得50 mA·mg _Pt ^-1用于双电极系统下的氨电解。因此，这项工作展示了一种设计用于氨电解的双功能催化剂的巧妙方法。