Heteroatom-doping introduces various defects in nanocarbons, herein; we reported salt-assisted synthetic strategy by establishing gas-liquid interface during pyrolysis and explored fluorine enrichment effect on mesoporous N-doped nanocarbons. The F, N co-doped carbon (FNC) performs similar to precious electrocatalysts in terms of onset (0.98 V) and half-wave (0.87 V) potentials under alkaline medium and half-wave potential of 0.78 V vs RHE was observed in acidic medium. F-doping also improves the ORR-pathway by yielding less peroxide production of 2% and also showed good stability of 8000 CV cycles than that of Pt/C. This study not only highlights the insights on the correlation of F, N dual doping and their intrinsic activity but also contributes a new strategy for highly efficient metal-free ORR electrocatalyst by in-situ fabrication of N, F co-doped carbon.

杂原子掺杂在纳米碳中引入了各种缺陷；我们通过在热解过程中建立气液界面报告了盐辅助合成策略，并探索了氟对介孔 N 掺杂纳米碳的富集效应。F、N 共掺杂碳 (FNC) 在碱性介质下的起始电位 (0.98 V) 和半波 (0.87 V) 表现与贵电催化剂相似，在酸性介质中观察到 0.78 V vs RHE 的半波电位中等的。F 掺杂还通过产生 2% 的过氧化物产量来改善 ORR 途径，并且与 Pt/C 相比，还表现出良好的 8000 CV 循环稳定性。这项研究不仅突出了对 F、N 双掺杂及其内在活性的相关性的见解，而且还通过原位制备 N 为高效无金属 ORR 电催化剂提供了一种新策略，