Electrochemical Properties of Poly(Anthraquinonyl Sulfide)/Graphene Sheets Composites as Electrode Materials for Electrochemical Capacitors

Nanomaterials

Wonkyun Lee¹  Shinya Suzuki¹ 

[1] School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan; E-Mails:

关键词: Poly(anthraquinonyl sulfide);    graphene;    composite;    electrochemical capacitors;   

DOI  :  10.3390/nano4030599

来源: mdpi

【 摘 要 】

Poly(anthraquinonyl sulfide) (PAQS)/graphene sheets (GSs) composite was synthesized through in situ polymerization to evaluate its performance as an electrode material for electrochemical capacitors. PAQS was successfully synthesized in the presence of GSs with uniform distribution. PAQS/GSs showed a pair of reversible redox peaks at around 0 V (vs. Ag/AgCl). The specific capacitance of PAQS/GSs was 349 F·g⁻¹ (86 mAh·g⁻¹) at a current density of 500 mA·g⁻¹, and a capacitance of 305 F·g⁻¹ was maintained even at a high current density of 5000 mA·g⁻¹. The in situ polymerization of PAQS with GSs facilitated their interaction and enabled faster charge transfer and redox reaction, resulting in enhanced electrode properties.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.