新型炭材料（中英文）2025，Vol.40Issue(2)：333-345,13.DOI:10.1016/S1872-5805(25)60957-7
包埋Fe2N/Fe3C异质结构的Fe-N-C纳米纤维的静电纺丝制备及电催化还原O2和CO2的性能
The synthesis of electrospun N-doped carbon nanofibers with embedded Fe2N/Fe3C species for catalyzing the O2 and CO2 reduction reactions
摘要
Abstract
The need for bi-functional catalysts that facilit-ate both the oxygen reduction(ORR)and carbon dioxide re-duction(CO2RR)reactions arises from their potential to help solve the critical problems of carbon neutrality and renew-able energy conversion.However,there are few reports on the development of bi-functional catalysts for zinc-air bat-tery-driven CO2RR devices.We introduce a novel approach for synthesizing Fe2N/Fe3C species embedded in nitrogen-doped carbon nanofibers by electrospinning a solution of Hemin and polyacrylonitrile in N,N-dimethylformamide.The material has an exceptional catalytic performance,with a half-wave potential of 0.91 V versus RHE for the ORR and values of over 90%for both the selectivity and Faradaic efficiency for the CO2RR.The high catalytic performances are attrib-uted to the strong coupling between the Fe3C/Fe2N heterostructure and the Fe-N-C sites in the nitrogen-doped carbon nan-ofibers.Notably,both Fe3C and Fe2N play distinct roles in both the ORR and CO2RR.This investigation indicates a way for designing advanced carbon-based bi-functional catalysts for use in this field.关键词
电纺丝/碳纳米纤维/异质结构/ORR/CO2RRKey words
Electrospun/Carbon nanofiber/Heterostructure/ORR/CO2RR分类
化学化工引用本文复制引用
吕修振,许翔翔,于萌萌,卫奕晨,王俊英,王俊中..包埋Fe2N/Fe3C异质结构的Fe-N-C纳米纤维的静电纺丝制备及电催化还原O2和CO2的性能[J].新型炭材料（中英文）,2025,40(2):333-345,13.基金项目
This work is supported by the National Natural Science Foundation of China(22279001,22179138)and the Natural Science Foundation of Shanxi(2021030212300). 国家自然科学基金(22279001,22179138) （22279001,22179138）
山西省自然科学基金(2021030212300) （2021030212300）
安徽省科技重大专项(2022e03020007). （2022e03020007）
