静电纺PPy/PAN纳米纤维包芯纱超级电容器电极的制备

Preparation of electrospun PPy/PAN nano fiber core-spun yarn supercapacitor electrode

利用静电纺丝技术制备了以镀镍棉纱为芯纱的聚丙烯腈(PAN)纳米纤维包芯纱,然后接枝聚吡咯(PPy),设计出一种新型的纱线型超级电容器电极,解决了传统电容器能量密度低、柔性差的问题,并对其形貌结构和电化学性能进行了表征。结果显示,所制备的PPy/PAN纳米纤维包芯纱中,镍材料能均匀涂覆在棉纤维的表面,PPy能够均匀致密地接枝在PAN纳米纤维表面,质量比容量高达31.25 F/g,显示出了很好的电化学性能。这种超级电容器电极材料可应用于柔性的可穿戴功能性纺织品上,具有很好的应用前景。

Polyacrylonitrile(PAN)nanofibers core yarns with nickel-coated cotton yarns as core yarns are prepared by electrospinning technology,and a novel yarn-type supercapacitor electrode is designed by grafting polypyrrole(PPy)to solve the problem of low energy density and poor flexibility of traditional capacitors.And/its morphological structure and electrochemical properties are characterized.The PAN nanofiber cored yarn could be evenly coated on the surface of the cotton f/i ber,shows a good electrochemical performance.This kind of supercapacitor electrode material has a good application prospect on flexible wearable functional textiles.