基于静电纺丝法,以碱木质素和聚丙烯腈(PAN)为溶质,二甲基亚砜(DMSO)为溶剂制备碳纳米纤维。通过扫描电镜(SEM)、X射线粉末衍射仪(XRD)、共聚焦显微拉曼光谱仪和X射线光电子能谱(XPS)等手段分析了木质素在木质素/PAN中的质量占比对碳纳米纤维形貌及结构的影响。结果表明:随着木质素含量的逐步增加,对碳纳米纤维的表面形貌和微观结构影响并不显著,说明木质素可以代替部分含量的PAN,为基于木质素/PAN碳纳米纤维制备高性能超级电容器电极材料提供参考。
Carbon nanofibers were prepared by electrospinning using alkali lignin and polyacrylonitrile (PAN) as solute and dimethyl sulfoxide (DMSO) as solvent.The effects of mass ratio of lignin on the morphology and structure of carbon nanofibers were analyzed by scanning electron microscopy (SEM),X-ray powder diffraction (XRD),confocal Raman microscopy and X-ray photoelectron spectroscopy (XPS).The results showed that with the gradual increase of lignin content,the surface morphology and microstructure of carbon nanofibers were not significantly affected,indicating that lignin could replace part content of PAN,which provided reference for the preparation of high-performance supercapacitor electrode materials based on lignin/PAN carbon nanofibers.
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基金资助
2021年第一批自治区创新环境(人才、基地)建设专项-自然科学计划(自然科学基金)联合基金项目(2021D01C101)
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