Highly active and low-cost catalytic electrodes for oxygen evolution reaction (OER) are always crucial for obtaining clean hydrogen energy via large-scale electrolytic water splitting. Herein, endowing the nickel-iron phosphide (NiFeP) nanoprisms with the tunable electronic structures have been carried out by tailoring the energy level of d-band in our study. The bimetallic synergistic effect efficiently accelerates the formation and cleavage rates of MO bonding, enabling the greatly improved OER catalytic performance after doping Fe into Ni₂P. The large surface area benefiting from the porous architecture also facilitates more contact between electrocatalyst and alkaline electrolytes, resulting in an advanced OER activity. Therefore, NiFeP can drive the OER process with a low potential of 258 mV at a current density of 10 mA cm⁻² and a Tafel slope of 46 mV dec⁻¹ in 1.0 M KOH solution. The present work provides the bimetallic phosphide nanoprism electrocatalyst with the tailored electronic structure for further application relevant to renewable energy exploration.

用于氧气析出反应（OER）的高活性和低成本催化电极对于通过大规模电解水分解获得干净的氢能始终至关重要。在本文中，通过调整我们研究中的d波段能级，使镍铁磷化物（NiFeP）纳米棱镜具有可调电子结构。双金属协同作用有效地加速了M O键的形成和裂解速率，从而使Fe掺入Ni _2中后大大提高了OER催化性能。P.得益于多孔结构的大表面积也促进了电催化剂与碱性电解质之间的更多接触，从而提高了OER活性。因此，NiFeP可以在1.0 M KOH溶液中以10 mA cm ^-2的电流密度和46 mV dec ^-1的Tafel斜率以258 mV的低电位驱动OER工艺。本工作为双金属磷化物纳米棱镜电催化剂提供了量身定制的电子结构，可用于与可再生能源勘探有关的进一步应用。