Developing affordable and high-efficient bifunctional electrocatalysts for the promotion of clean energy conversion systems (like rechargeable zinc-air batteries (ZABs)) is of great significance. Herein, a hybrid material consisting of CoS₂ strongly coupled to the iron-nitrogen-doped carbon (FeNC) (FeNC-CoS₂) is developed as a formidable bifunctional oxygen mA cm2 = 1.608 V). Further, assembled rechargeable zinc-air battery displays remarkable discharge peak power density ~ 117.6 mW cm2 and a high capacity of 581.3 mAh gZn1, as well as excellent reversibility and stability. This study provides a good guidance and reference for the design and preparation of affordable excellent-performance bifunctional catalysts in the future."?>toxy electrocatalysts. The FeNC-CoS₂ catalyst displays good electron and mass transfer capabilities, exposing a great deal of ORR/OER active sites. Hence, it exhibits superior catalytic activity and durability (E_1/2 = 0.848 V) and OER (E_{j = 10 mA cm}⁻² = 1.608 V). Further, assembled rechargeable zinc-air battery displays remarkable discharge peak power density ~ 117.6 mW cm⁻² and a high capacity of 581.3 mAh g_Zn⁻¹, as well as excellent reversibility and stability. This study provides a good guidance and reference for the design and preparation of affordable excellent-performance bifunctional catalysts in the future.

开发负担得起的高效双功能电催化剂以促进清洁能源转换系统（如可充电锌空气电池（ZABs））具有重要意义。在本文中，由强耦合到铁氮掺杂碳（FeNC）的CoS ₂组成的杂化材料（FeNC-CoS ₂）被开发为强大的双功能氧mA cm2 = 1.608V。此外，组装好的可充电锌空气电池显示出卓越的放电峰值功率密度〜117.6 mW cm2和581.3 mAh gZn1的高容量，以及出色的可逆性和稳定性。这项研究提供了在未来的设计和制备实惠优良性能的双功能催化剂的一个很好的指导和借鉴。“？> toxy电催化剂。该FENC CoS的₂催化剂显示出良好的电子和传质能力，暴露出大量的ORR / OER活性位。因此，它表现出优异的催化活性和耐久性（E _1/2  = 0.848 V）和OER（E _{j = 10 mA cm} ^-2  = 1.608 V）。此外，组装好的可再充电锌-空气电池显示出显着的放电峰值功率密度〜117.6 mW cm ^-2和581.3 mAh g _Zn ^-1的高容量，以及出色的可逆性和稳定性。这项研究为将来设计和制备负担得起的高性能双功能催化剂提供了很好的指导和参考。