The exploitation of efficient electrocatalysts with specific morphology toward oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for Li–O₂ batteries (LOBs). Perovskites are among the most promising electrocatalyst candidates mainly due to their tunable structure and facile preparation. In this study, porous double-doped La_0.6Ca_0.4Fe_0.8Ni_0.2O₃ (LCFN) nanotubes are prepared by a facile electrospinning method combined with subsequent calcination treatment. The leaf-like Li₂O₂ is loosely and uniformly packed on the surface of the LCFN nanotube, which provides the channels for electronic and ion transport for the decomposition of Li₂O₂ during the charge process of the LOBs. The LOB with LCFN catalyst exhibits a higher specific discharge capacity of 13019 mAh g⁻¹ than that with Super P carbon catalyst. And it can cycle stably up to 139 times at capacity limitation of 500 mAh g⁻¹. Therefore, the porous LCFN nanotubes electrocatalyst shows prospective application for LOBs.

对于Li–O ₂电池（LOB），开发具有特定形态的高效电催化剂对氧还原反应（ORR）和氧释放反应（OER）至关重要。钙钛矿是最有前途的电催化剂候选者，主要是因为它们具有可调节的结构和容易的制备方法。在这项研究中，多孔双掺杂La _0.6 Ca _0.4 Fe _0.8 Ni _0.2 O ₃（LCFN）纳米管是通过一种简便的电纺丝方法结合随后的煅烧处理制备的。叶状Li ₂ O ₂在LCFN纳米管的表面上松散且均匀地填充有LCFN纳米管，其为LOB的充电过程中的Li ₂ O ₂分解提供了用于电子和离子传输的通道。具有LCFN催化剂的LOB比具有Super P碳催化剂的LOB具有更高的比放电容量13019mAh g ^-1。在500 mAh g ^-1的容量限制下，它可以稳定地循环多达139次。因此，多孔LCFN纳米管电催化剂在LOBs中显示出前瞻性的应用。