Electrochemically synthesized Sn2+ doped poly(3-methylthiophene) and poly(3,4-ethylenedioxythiophene) for supercapacitors

ÇAĞLAR M., Arslan A., Kilic R., HÜR E.

SYNTHETIC METALS, vol.206, pp.8-14, 2015 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 206
  • Publication Date: 2015
  • Doi Number: 10.1016/j.synthmet.2015.04.006
  • Title of Journal : SYNTHETIC METALS
  • Page Numbers: pp.8-14


Electrochemically synthesized tin ion (Sn2+) doped poly(3-methylthiophene) (P3MeT:Sn) and poly(3,4-ethylenedioxythiophene) (PEDOT:Sn) on pencil graphite electrode (PGE) were prepared to utilize as the electrode materials for supercapacitor applications. Cyclic voltammetry (CV) method was employed for the preparation of the electrodes (PGE/P3MeT:Sn and PGE/PEDOT:Sn). The morphologies of the electrodes were analyzed by scanning electron microscopy (SEM). Electrochemical properties of the electrodes were examined by CV, electrochemical impedance spectroscopy (EIS), galvanostatic charge/discharge (GCD) and repeating chronopotentiometry (RCP) in acetonitrile (ACN) solution containing 0.10 M lithium perchlorate (LiClO4). PGE/P3MeT:Sn has better electrochemical performance than PGE/PEDOT:Sn. Maximum capacitances of PGE/P3MeT:Sn and PGE/PEDOT:Sn are 181.41 and 137.89 F g(-1) at a scan rate of 10 m V s(-1), respectively. Additionally, PGE/P3MeT:Sn and PGE/PEDOT:Sn show good charge/discharge stability with the retention of 92 and 83% in electrochemical performance, respectively. (C) 2015 Elsevier B.V. All rights reserved.