通过原位溶剂热反应将锆-金属有机框架(UIO-66)沉积在棉布上,并采用冷冻界面聚合法聚合聚吡咯(PPy)从而获得PPy@UIO-66@棉复合织物电极材料。通过扫描电镜、红外光谱、循环伏安、恒电流充放电、交流阻抗等手段对该复合织物电极的形貌结构和性能进行了表征。结果表明:利用该织物电极组装的超级电容器在电流密度为1.6mA/cm2条件下面积比电容为3888mF/cm2(相应的质量比容量为410.4F/g),经过1000个充放电循环后比电容保持率为73%。
In this work,zirconium-based metal organic framework (UIO-66) was deposited on the cotton fabric by in-situ solvothermal reaction,and then polypyrrole (PPy) was coated by freezing interfacial polymerization to prepare the PPy@UIO-66 composite fabric electrode material.The morphology structure and electrochemical properties of the composite fabric electrodes were characterized by scanning electron microscopy,infrared spectroscopy,cyclic voltammetry,constant current charge/discharge,and AC impedance.The results showed that an areal specific capacitance of 3888mF/cm2 (corresponding to a mass specific capacitance of 410.4F/g) was obtained for the supercapacitor assembled with the fabric electrodes at a current density of 1.6mA/cm2.The specific capacitance retention was about 73% after 1000 charge-discharge cycles.
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