Zinc–air battery has drawn increasing attention, but however, suffers from low-power density. Here, we show an S-doped Fe–N–C catalyst with hierarchical porous architecture as an oxygen reduction reaction (ORR) catalyst for a high-power-density zinc–air battery. We demonstrate that the macropores and mesopores in the interconnected hierarchical morphology of Fe–N–C catalyst significantly increase the accessible active Fe–N₄ sites during ORR; the combination of microstructure and nanostructure in the Fe–N–C catalyst provides an ideal aerophilic/hydrophobic surface, promoting the O₂ transport during ORR; the heteroatom S-doping in the carbon skeleton boosts the intrinsic activity of the single Fe–N₄ moiety. Therefore, the zinc–air battery assembled with such Fe–N–C catalyst exhibits superior performance with a super high-power-density of 453 mW cm⁻².

锌空气电池引起了越来越多的关注，但是，其功率密度较低。在这里，我们展示了一种S掺杂的Fe–N–C催化剂，该催化剂具有分层的多孔结构，可作为高功率密度锌空气电池的氧还原反应（ORR）催化剂。我们证明了在Fe–N–C催化剂的相互关联的分层形态中的大孔和中孔显着增加了ORR期间可及的活性Fe–N ₄位点。Fe–N–C催化剂中微观结构和纳米结构的结合提供了理想的需氧/疏水表面，从而促进了ORR期间的O ₂传输；碳骨架中的杂原子S掺杂增强了单个Fe–N ₄的固有活性部分。因此，用这种Fe–N–C催化剂组装的锌空气电池以453 mW cm ^-2的超高功率密度表现出卓越的性能。