Polypyrrole-coated cotton fabrics for flexible supercapacitor electrodes prepared using CuO nanoparticles as template
作者：Jie Xu*, Daxiang Wang, Ye Yuan, Wei Wei, Shaojin Gu, Ruina Liu, Xiaojun Wang, Li Liu, Weilin Xu
關鍵字：Polypyrrole，Flexible supercapacitor
論文來源：期刊
具體來源：Cellulose
發表時間：2015年
Monodispersed
inorganic oxide nanoparticles are one kind of the most commonly used templates for
efficient and controllable preparation of conducting polymer nanostructures. In
this article, we report the fabrication and characterization of PPy-coated cotton
fabrics through in situ chemical
polymerization by using CuO nanoparticles as template. The electrical
conductivity of the coated samples increases dramatically to 10.0 S cm-1 with the introduction of CuO. The electrochemical properties of the obtained
fabrics are examined by cyclic voltammetry and charge/discharge analysis. The
increase of scan rate in the range of 5-50 mV s-1 has a small effect
on the specific capacitance for the fabric electrode, pointing out the improved
ion transportation in this electrode. The charge/discharge test further reveals
that the fabric device shows high specific capacitance (225 F g-1 at
a current density of 0.6 mA cm-2) and good cycling performance
(about 92% capacitance retention after 200 cycles) in aqueous electrolyte. These
PPy-coated fabrics have potential to be used as electrode materials for wearable
supercapacitors.