聚(3,4-乙烯二氧噻吩)/MXene复合材料的制备及电容性能研究  

Synthesis ofpoly(3, 4-ethylenedioxythiophene)/MXene compositematerial and its capacitance properties research

作　　者：刘娟娟 轩晓蝶 杜子富 刘潞潞 高楼军[1] 高晓明[1] 简选 LIU Juanjuan;XUAN Xiaodie;DU Zifu;LIU Lulu;GAO Loujun;GAO Xiaoming;JIAN Xuan(Shaanxi Provincial Key Laboratory of Chemical Reaction Engineering,College ofChemistry and Chemical Engineering,Yan an University,Yan an 716000,China)

机构地区：[1]延安大学化学与化工学院,陕西省化学反应工程重点实验室,陕西延安716000

出　　处：《功能材料》2024年第3期3213-3221,共9页Journal of Functional Materials

基　　金：延安大学2023年研究生教育创新计划项目(YCX2023092);延安市科技计划项目(2023-CYL-132)。

摘　　要：MXene材料具有组分灵活可调、电容量较高等优势在超级电容器储能领域备受关注。采用电化学法制得聚3, 4-乙烯二氧噻吩/Nb_(2)CT_(x) MXene (PEDOT/MXene)复合电极材料。结果表明,在扫描速率为30 mV·s^(-1)时,PEDOT/MXene的面积比电容可达250.21 mF·cm^(-2),当电流密度从0.1 mA·cm^(-2)增加到5 mA·cm^(-2)时,PEDOT/MXene的面积比电容保持率为83.5%,远优于PEDOT的64.1%,并且在100 mV·s^(-1)的扫描速率下循环测试1 000次后初始电容保持率可达84%,表现出良好的倍率性能和稳定性。工作为基于MXene基材料构筑高性能电化学储能界面提供了一定的借鉴。MXene material has the advantages of flexible composition and high capacitance,which has attracted much attention in the field of supercapacitor energy storage.In this work,the poly(3,4-ethylenedioxythiophene)/MXene(PEDOT/MXene)composite electrode material were synthesized via electrochemical method.Experimental results indicate that the specific capacitance of PEDOT/MXene reaches 250.21 mF/cm^(2) at a scan rate of 30 mV/s.With the current density increasing from 0.1 mA/cm^(2) to 5 mA/cm^(2),the specific capacitance retention of PEDOT/MXene achieves 83.5%,was much better than PEDOT(64.1%).Additionally,the initial specific capacitance of PEDOT/MXene still remains 84%over 1000 cycles at a scan rate of 100 mV/s by CV method,exhibiting good rate performance and cycle stability.This work provides a new approach to construct high-performance energy storage interface with MXene-based materials.

关 键 词：MXene 聚3 4-乙烯二氧噻吩 电化学法 复合电极材料 电容性能 

分 类 号：O646[理学—物理化学]