School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 210093, P. R. China.
ACS Appl Mater Interfaces. 2014 Oct 22;6(20):17937-43. doi: 10.1021/am5059603. Epub 2014 Oct 6.
Highly dispersed polypyrrole nanowires are decorated on reduced graphene oxide sheets using a facile in situ synthesis route. The prepared composites exhibit high dispersibility, large effective surface area, and high electric conductivity. All-solid-state flexible supercapacitors are assembled based on the prepared composites, which show excellent electrochemical performances with a specific capacitance of 434.7 F g(-1) at a current density of 1 A g(-1). The as-fabricated supercapacitor also exhibits excellent cycling stability (88.1% capacitance retention after 5000 cycles) and exceptional mechanical flexibility. In addition, outstanding power and energy densities were obtained, demonstrating the significant potential of prepared material for flexible and portable energy storage devices.
采用简便的原位合成路线,将高度分散的聚吡咯纳米线修饰在还原氧化石墨烯片上。所制备的复合材料具有高分散性、大有效表面积和高电导率。基于所制备的复合材料组装了全固态柔性超级电容器,其在 1 A g(-1) 的电流密度下具有 434.7 F g(-1) 的比电容,表现出优异的电化学性能。所制备的超级电容器还表现出优异的循环稳定性(5000 次循环后电容保持率为 88.1%)和出色的机械柔韧性。此外,还获得了出色的功率和能量密度,表明所制备材料在用于柔性和便携式储能装置方面具有巨大的潜力。