Developing of high-performance and low-cost electrocatalysts is of great significance to reduce the overpotential and accelerated the reaction rate of oxygen evolution in water splitting and related energy conversion applications. Herein, Fe, O-dual doped Ni₂P (Fe, ONi₂P) nanoarray is successfully synthesized on carbon cloth demonstrating enhanced electrocatalytic activity and stability for oxygen evolution reaction (OER) under alkaline media. The as-synthesized Fe, ONi₂P nanoarray exhibits obviously improved OER performance with a low overpotential of 210 mV at 10 mA cm⁻² current density and a Tafel slope of 48 mV dec⁻¹, as well as long-term durability. The strong coupling interaction induced changes in electronic structure lead to relatively higher oxidation state and stronger oxidation ability of the Fe, ONi₂P nanoarray, together with the high electrochemical surface area and good conductivity contribute to the superior OER performance. This work highlights the anion-cation dual doping strategy may be an effective method for fabrication of catalysts relating to energy conversion applications.

开发高性能和低成本的电催化剂对于减少水分解和相关能量转换应用中的过电位并加快氧气释放的反应速率具有重要意义。本文成功地在碳布上合成了Fe，O-双掺杂的Ni ₂ P（Fe，O Ni ₂ P）纳米阵列，证明了在碱性介质下增强的电催化活性和对氧释放反应（OER）的稳定性。合成后的Fe，O Ni ₂ P纳米阵列具有明显改善的OER性能，在10 mA cm ^-2的电流密度下低过电势为210 mV，Tafel斜率为dec m ^-1（48 mV），以及长期的耐用性。强耦合反应引起的电子结构变化导致Fe，O Ni ₂ P纳米阵列的相对较高的氧化态和较强的氧化能力，以及较高的电化学表面积和良好的电导率有助于获得优异的OER性能。这项工作强调了阴离子阳离子双重掺杂策略可能是制造与能量转换应用相关的催化剂的有效方法。