Strawberry-like carbonized cotton Cloth@Polyaniline nanocomposite for high-performance symmetric supercapacitors

Xiaodong Hong*, Jiawei Fu, Yue Liu, Shunli Li, Bing Liang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

In order to control the microstructure of polyaniline (PANI) and enhance the interfacial bonding between PANI and carbon substrate, a vacuum infiltration method is put forward to prepare functionalized carbonized cotton cloth (FCC)@PANI nanocomposite. In which, FCC is soaked in dilute PANI solution under vacuum to achieve the permeation adsorption of PANI. After the solvent evaporated, strawberry-like FCC@PANI nanocomposite is produced with PANI nanoparticles embedding on the fiber surface. This novel method effectively avoids the generation of PANI nanofibers and their agglomeration, even at a high PANI loading of 28.1 wt%. Serving as electrodes in symmetric supercapacitors, the optimum FCC@PANI composite exhibits the maximum capacitance of 350.8 F g−1 (1859.2 mF cm−2) at 1 A g−1, and a high capacitance retention of 90.8% for 10,000 cycles. The performance is much better than that of optimized FCC/PANI composite synthesized by in-situ polymerization, due to the low internal resistance, fast transfer of electrons/ions and a strong interfacial bonding interaction. In view of the easy operation and scalability, vacuum infiltration method has a promising prospect for preparing carbon fabrics/PANI composite electrodes in large scale.

Original languageEnglish
Article number123999
JournalMaterials Chemistry and Physics
Volume258
DOIs
Publication statusPublished - 15 Jan 2021
Externally publishedYes

Keywords

  • Functionalized carbon cloth
  • Polyaniline
  • Supercapacitor
  • Vacuum infiltration method

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