MXene/PPy@TOCNF复合薄膜的制备及其电化学性能

Preparation of MXene/PPy@TOCNF Hybird Film and Its Electrochemical Performance

利用聚吡咯(PPy)在纤维素纳米纤维(TOCNFs)表面原位聚合并结合MXene在真空过滤下制备MXene/PPy@TOCNF(MPT)混合膜。通过透射电子显微镜(TEM)、扫描电子显微镜(SEM)、X射线粉末衍射仪(XRD)等分析了(MPT)混合膜的结构与形貌,利用电化学工作站等探究了聚吡咯@纤维素纳米纤维(PPy@TOCNF)的含量对于MXene薄膜的电化学性能的影响。结果表明:PPy@TOCNF的加入会提高混合膜的电化学性能,在1 A·g^(-1)的电流密度下,MPT-20%薄膜比电容为415.6 F·g^(-1),远高于MXene(284.5 F·g^(-1))。

MXene/PPy@TOCNF(MPT)hybrid film was prepared by in-situ polymerization of PPy on the surface of TOCNFs(cellulose nanofibers)combined with MXene under vacuum filtration.The structure and morphology of the(MPT)mixed film were analyzed by TEM,SEM,XRD,FT-IR.The electrochemical workstation was used to investigate the effect of the content of polypyrrole@cellulose nanofibers on the electrochemical performance of the MXene film.The results showed that the addition of PPy@TOCNF improved the electrochemical performance of the hybrid film.At a current density of 1 A·g^(-1),the specific capacitance of MPT-20%film was 415.6 F·g^(-1),which was much higher than that of MXene(284.5 F·g^(-1)).