Electrospinning of Fe₃O₄/Fe₃C/N-doped lignin-derived carbon nanofibers with Fesingle bondN structures for low-energy-consumption lithium extraction
Electrospinning of Fe₃O₄/Fe₃C/N-doped lignin-derived carbon nanofibers with Fesingle bondN structures for low-energy-consumption lithium extraction
研究概述
以木质素和聚丙烯腈制备含Fe3O4/Fe3C及Fe–N结构的三维氮掺杂碳纳米纤维，用于电容去离子提锂。优化电极在1.2 V下锂吸附量4.66 mg/g，10次循环后保持78.7%；高镁锂比条件下分离因子最高8.47。
谱图与表征信息
Fig. 4. Physicochemical Properties of Materials. (a) TGA curves of carbon nanofibers. (b) Nitrogen adsorption-desorption isotherms of carbon nanofibers. (c) Pore size distribution curves of carbon nanofibers. (d) XRD patterns of PAN, CNF, and Fe CNF-2.5. (e) Graphite phase XRD patterns of PAN, CNF, and Fe CNF-2.5. (f) Raman spectra of PAN, CNF, and Fe CNF-2.5. (g) Water contact angles of PAN, CNF, and Fe CNF-2.5. (h) XANES spectra of Fe CNF-2.5 and Fe foil. (i) R-space fitting results for Fe-N4 in Fe CNF-2.5 and Fe foil.