Electrochemical Properties of Poly(Anthraquinonyl Sulfide)/Graphene Sheets Composites as Electrode Materials for Electrochemical Capacitors.
Poly(anthraquinonyl sulfide) (PAQS)/graphene sheets (GSs) composite was synthesized throughin situpolymerization 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-1was maintained even at a high current density of 5000 mA·g-1. Thein situpolymerization of PAQS with GSs facilitated their interaction and enabled faster charge transfer and redox reaction, resulting in enhanced electrode properties.
School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. wklee@fmat.t.u-tokyo.ac.jp.
Wonkyun
W
Lee
School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. sin@fmat.t.u-tokyo.ac.jp.
Shinya
S
Suzuki
School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. miyayama@fmat.t.u-tokyo.ac.jp.|CREST, Japan Science and Technology Agency, 4-8-1 Honcho, Kawaguchi, Saitama 332-0012, Japan. miyayama@fmat.t.u-tokyo.ac.jp.
Masaru
M
Miyayama
Poly(anthraquinonyl sulfide); composite; electrochemical capacitors; graphene