Iron-nitrogen (Fe-N) co-doped carbon nanomaterials are promising catalysts for oxygen reduction reaction (ORR) with outstanding catalytic activity at low cost. Here, we demonstrate a facile bottom-up strategy to fabricate Fe, N, B co-doped bamboo-like carbon nanotubes using ionic liquid as dopant source. We show that the synergistic effect of Fe, N, B in the mesoporous carbon structure can derive excellent ORR activity, for which the FeNB/C-800 catalyst delivers an onset potential of 0.97 V (vs. reversible hydrogen electrode, RHE), a half-wave potential of 0.81 V (vs. RHE) and a high limiting current density (5.59 mA cm⁻²), comparable to a commercial Pt/C. The catalyst also shows good methanol tolerance as compared to Pt/C catalyst. This work highlights a bottom-up strategy for creating ternary Fe, N, B sites on carbon nanotubes using boron-containing ionic liquid precursor.

铁-氮（Fe-N）共掺杂碳纳米材料是低成本的氧还原反应（ORR）催化剂，具有出色的催化活性。在这里，我们展示了一种简便的自下而上的策略，以使用离子液体作为掺杂剂源来制造Fe，N，B共掺杂的竹状碳纳米管。我们表明，Fe，N，B在介孔碳结构中的协同作用可产生出色的ORR活性，为此，FeNB / C-800催化剂提供的起始电势为0.97 V（相对于可逆氢电极，RHE），半波电势为0.81 V（vs . RHE）和高极限电流密度（5.59 mA cm ^-2），可与商用Pt / C相媲美。与Pt / C催化剂相比，该催化剂还显示出良好的甲醇耐受性。这项工作强调了使用含硼离子液体前体在碳纳米管上创建三元Fe，N，B位的自下而上策略。