崔砚伟， 郭 琳， 夏雨灿， 杨树华， 曹丙强

（济南大学 材料科学与工程学院， 山东 济南 250022）

DOI:10.13732/j.issn.1008-5548.2023.01.015

收稿日期： 2022-10-31，修回日期：2022-11-20，在线出版时间：2022-12-02 17:51。

基金项目：国家自然科学基金项目，编号：51702123；山东省自然科学基金项目，编号：ZR2022ME181。

第一作者简介：崔砚伟(1997—)，男，硕士研究生，研究方向为新能源材料与器件。E-mail： CYW15621696948@163.com。

通信作者简介：杨树华(1986—)，男，副教授，博士，硕士生导师，研究方向为新能源材料与器件。E-mail： yangshuhua78@163.com。

摘要：采用静电纺丝技术制备ZIF-8-PAN复合纳米纤维，经预氧化和高温碳化制得ZIF-8-PAN衍生多孔碳纳米纤维(ZIF-8-PANC);利用扫描电镜、比表面及孔径分析技术对ZIF-8-PANC的形貌和微结构进行表征，测试作为锌离子混合电容器(ZHS)电极材料的电化学性能。结果表明：ZIF-8-PANC结合碳纳米纤维的高导电性和ZIF-8衍生碳的丰富多孔结构，不仅导电性能良好，同时增大比表面积，得到分级多孔结构，ZIF-8-PANC可有效实现电子、离子的快速传输和锌离子的高容量储存；当电流密度为0.5 A·g^-1时，ZIF-8-PANC电极的比容量达到240 mAh·g^-1,循环稳定性优异。

关键词：静电纺丝技术；沸石咪唑酯骨架结构；多孔碳纳米纤维；锌离子混合电容器

Abstract：ZIF-8-PAN composite nanofibers were prepared by electrospinning, and then ZIF-8-PAN derived porous carbon nanofibers(ZIF-8-PANC) were prepared by pre-oxidation and high-temperature carbonization. The morphology and microstructure were characterized by scanning electron microscopy and the specific surface area, pore size distribution analysis, and their electrochemical properties for zinc ion hybrid supercapacitor(ZHS) were tested. The results show that ZIF-8-PANC combines the high conductivity of carbon nanofibers and the rich porous structure of ZIF-8 derived carbon, which not only provides good conductivity, but also realizes high specific surface area and hierarchical porous structure. Therefore, ZIF-8-PANC can effectively realize the rapid transfer of electrons, ions and the high-capacity storage of zinc ions. When the current density is 0.5 A·g^-1, the specific capacity of the ZIF-8-PANC electrode reaches 240 mAh·g^-1 and exhibits excellent cycle stability.

Keywords：electrospinning technology; framework structure of zeolite imidazole esters; porous carbon nanofiber; zinc ion hybrid supercapacitor

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