Abstract FeCoNi alloy embedded mesoporous carbon nanofiber (FeCoNi-CNF) has been prepared via electrospinning and subsequent carbonization. Benefiting from the unique FeCoNi alloy composition and porous 1D carbon structure, FeCoNi-CNF presented an overpotential of 220 mV at 10 mA cm−2 and a Tafel slope of 57 mV dec−1 as an OER catalyst. It also exhibited a low discharge–charge voltage gap (0.88 V, at 20 mA cm−2), higher power density (73 mW cm−2, at 80 mA cm−2) and long-term stability when testing for Zn-air battery.

中文翻译：

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FeCoNi三元合金嵌入介孔碳纳米纤维：可充电锌空气电池的高效析氧催化剂

摘要 通过静电纺丝和后续碳化制备了FeCoNi合金嵌入介孔碳纳米纤维（FeCoNi-CNF）。受益于独特的 FeCoNi 合金成分和多孔一维碳结构，FeCoNi-CNF 作为 OER 催化剂在 10 mA cm-2 下表现出 220 mV 的过电位和 57 mV dec-1 的 Tafel 斜率。它还表现出低放电-充电电压间隙（0.88 V，20 mA cm-2），更高的功率密度（73 mW cm-2，80 mA cm-2）和锌空气测试时的长期稳定性电池。