Synthesis of MXene-based nanocomposite electrode supported by PEDOT:PSS-modified cotton fabric for high-performance wearable supercapacitor

Xiaohong Liu; Yudong Chen; Huangqing Zhang; Leilin Zhuo; Qingwei Huang; Wengong Zhang; Hong Chen; Qidan Ling

doi:10.1016/j.jcis.2024.01.084

Synthesis of MXene-based nanocomposite electrode supported by PEDOT:PSS-modified cotton fabric for high-performance wearable supercapacitor

J Colloid Interface Sci. 2024 Apr 15:660:735-745. doi: 10.1016/j.jcis.2024.01.084. Epub 2024 Jan 18.

Authors

Xiaohong Liu¹, Yudong Chen¹, Huangqing Zhang¹, Leilin Zhuo¹, Qingwei Huang¹, Wengong Zhang¹, Hong Chen², Qidan Ling¹

Affiliations

¹ Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China.
² Fujian Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, PR China. Electronic address: chengh5678@126.com.

PMID: 38271809
DOI: 10.1016/j.jcis.2024.01.084

Abstract

The rapid development of wearable and portable electronic devices prompts the ever-growing demand for wearable, flexible, and light-weight power sources. In this work, a MXene/GNS/PPy@PEDOT/Cotton nanocomposite electrode with excellent electrochemical performances was fabricated using cotton fabric as a substrate. Poly (3,4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT:PSS) was coated on the cotton fabric to obtain a conductive substrate through a controllable dip-drying coating process, while a nanocomposite consisting of MXene, Graphene nanoscroll (GNS), and polypyrrole (PPy) was directly synthesized and deposited on the PEDOT:PSS-modified cotton fabric via a one-step in situ polymerization method. The resultant MXene/GNS/PPy@PEDOT/Cotton electrode delivers excellent electrochemical performances including an ultra-high areal capacitance of 4877.2 mF·cm^-2 and stable cycling stability with 90 % capacitance retention after 3000 cycles. Moreover, the flexible symmetrical supercapacitor (FSC) assembled with the MXene/GNS/PPy@PEDOT/Cotton electrodes demonstrates a prominent areal capacitance (2685.28 mF·cm^-2 at a current density of 1 mA·cm^-2) and a high energy density (322.15 μWh·cm^-2 at a power density of 0.46 mW·cm^-2). In addition, the application of the FSC for wearable electronic devices was demonstrated.

Keywords: Fabric-based supercapacitor; Graphene nanoscroll; MXene; PEDOT:PSS; PPy.