• 文献标题:   Tailoring the synergy between polyaniline and reduced graphene oxide using organic acid dopant, pTSA for enhanced performance as electrode material for supercapacitor applications
  • 文献类型:   Article
  • 作  者:   MAHALAKSHMI S, SRIDEVI V
  • 作者关键词:   polyaniline, reduced graphene oxide, ptoluene sulphonic acid, spacer, supercapacitor
  • 出版物名称:   JOURNAL OF PHYSICS CHEMISTRY OF SOLIDS
  • ISSN:   0022-3697 EI 1879-2553
  • 通讯作者地址:  
  • 被引频次:   2
  • DOI:   10.1016/j.jpcs.2022.110673 EA MAR 2022
  • 出版年:   2022

▎ 摘  要

Optimal reduction of graphene oxide (GO) to reduced graphene oxide (rGO) through strategically planned chemical synthesis with suitable reducing agents and combining materials, prevents restacking and enhances the conductivity of the rGO sheets. The present work demonstrates such a tailoring approach towards the synthesis of rGO using aniline as a mild reducing agent. The obtained rGO with residual oxygen bearing functional groups provides adequate sites that facilitates synergistic interaction with p-toluene sulphonic acid (pTSA) doped polyaniline (PANI) chains. The resultant PANI-rGO nanocomposite exhibits a well-ordered and expanded morphology due to the organic acid dopant, pTSA that separates the interlayers of rGO sheets and the PANI chains leading to enhanced thermal stability and electrical conductivity. Modified nanocomposite electrode shows a higher specific capacitance value (450 F/g) compared to plain rGO (132.5 F/g) and pTSA doped PANI (300 F/g) at a current density of 0.8 A/g with enhanced cycling stability up to 5000 cycles. The results reveal the suitability of the nanocomposite as a potential electrode material for supercapacitor applications.