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Flexible all-solid-state supercapacitors based on PPy/rGO nanocomposite on cotton fabric

机译:基于PPY / RGO纳米复合材料在棉织物上的柔性全固态超级电容器

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摘要

Polypyrrole (PPy) has high electrochemical activity and low cost, so it has great application prospects in wearable supercapacitors. Herein, we have successfully prepared polypyrrole/reduced graphene oxide (PPy/rGO) nanocomposite cotton fabric (NCF) by chemical polymerization, which exhibits splendid electrochemical performance compared with the individual. The addition of rGO can block the deformation of PPy caused by the expansion and contraction. The as-prepared PPy-0.5/rGO NCF electrode exhibits the brilliant specific capacitance (9300 mF cm(-2) at 1 mA cm(-2)) and the capacitance retention with 94.47% after 10 000 cycles. At the same time, the superior capacitance stability under different bending conditions and reuse capability have been achieved. All-solid-state supercapacitor has high energy density of 167 mu Wh cm(-2) with a power density of 1.20 mW cm(-2). Therefore, the PPy-0.5/rGO NCF electrode has a broad application prospect in high-performance flexible supercapacitor fabric electrode.
机译:聚吡咯(PPy)具有较高的电化学活性和较低的成本,在可穿戴超级电容器中具有广阔的应用前景。在此,我们通过化学聚合成功地制备了聚吡咯/还原氧化石墨烯(PPy/rGO)纳米复合棉织物(NCF),与单独制备的织物相比,该织物具有优异的电化学性能。rGO的加入可以阻止PPy因膨胀和收缩而产生的变形。制备的PPy-0.5/rGO-NCF电极在1ma-cm(-2)下表现出出色的比电容(9300mf-cm(-2)),10000次循环后电容保持率为94.47%。同时,在不同弯曲条件下获得了优异的电容稳定性和重复使用能力。全固态超级电容器具有167μWh-cm(-2)的高能量密度和1.20 mW-cm(-2)的功率密度。因此,PPy-0.5/rGO-NCF电极在高性能柔性超级电容器织物电极中具有广阔的应用前景。

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