Lee Wonkyun, Suzuki Shinya, Miyayama Masaru
School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
CREST, Japan Science and Technology Agency, 4-8-1 Honcho, Kawaguchi, Saitama 332-0012, Japan.
Nanomaterials (Basel). 2014 Jul 30;4(3):599-611. doi: 10.3390/nano4030599.
Poly(anthraquinonyl sulfide) (PAQS)/graphene sheets (GSs) composite was synthesized through 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 ( Ag/AgCl). The specific capacitance of PAQS/GSs was 349 F·g (86 mAh·g) at a current density of 500 mA·g, and a capacitance of 305 F·g was maintained even at a high current density of 5000 mA·g. The polymerization of PAQS with GSs facilitated their interaction and enabled faster charge transfer and redox reaction, resulting in enhanced electrode properties.
通过聚合反应合成了聚(蒽醌基硫醚)(PAQS)/石墨烯片(GSs)复合材料,以评估其作为电化学电容器电极材料的性能。在GSs存在下成功合成了分布均匀的PAQS。PAQS/GSs在0 V(Ag/AgCl)左右显示出一对可逆的氧化还原峰。在500 mA·g的电流密度下,PAQS/GSs的比电容为349 F·g(86 mAh·g),即使在5000 mA·g的高电流密度下仍保持305 F·g的电容。PAQS与GSs的聚合促进了它们之间的相互作用,实现了更快的电荷转移和氧化还原反应,从而增强了电极性能。