Substituent effect on supercapacitive performances of conducting polymer-based redox electrodes: Poly(3′,4′-bis(alkyloxy) 2,2′:5′,2″-terthiophene) derivatives
作者:Deniz Yiğit、Melis Aykan、Mustafa Güllü
DOI:10.1002/pola.28927
日期:2018.3.1
over the surface morphologies and charge storage properties of polymer electrodes. PTTOBu, PTTOHex, and PTTOOct‐based electrodes have reached up to specific capacitances of 94.3, 227.3, and 443 F g−1 at 2.5 mA cm−2 constant current density, respectively, in a three‐electrode configuration. Besides, these redox‐active electrodes have delivered satisfactory energy densities of 13.5, 29.3, and 60.7 W h kg−1
这项工作报告了新型聚(3',4'-双(烷氧基)对噻吩)衍生物(PTTOBu,PTTOHex和PTTOOct)的合成及其作为氧化还原活性电极的超级电容器应用。基于对噻吩的导电聚合物已被不同的烷基侧基(丁基,己基和辛基)衍生化,以研究烷基链长对表面形态和假电容性质的影响。电化学性能测试表明,烷基取代基的长度对聚合物电极的表面形态和电荷存储性能产生了显着影响。基于PTTOBu,PTTOHex和PTTOOct的电极在2.5 mA cm -2时的比电容达到94.3、227.3和443 F g -1在三电极配置中分别保持恒定的电流密度。此外,这些氧化还原活性电极在对称的10,000次充电/放电循环后,具有令人满意的13.5、29.3和60.7 W h kg -1的能量密度以及0.98、1和1.1 kW kg -1的功率密度,并具有良好的电容保持率固态微型超级电容器设备。©2017 Wiley Periodicals,Inc