Electrochemical synthesis of MnO2 porous nanowires for flexible all-solid-state supercapacitor

文献类型: 外文期刊

第一作者: Song, Juan

作者: Song, Juan;Li, Huihua;Li, Sizhe;Zhu, Hongli;Ge, You;Wang, Shu;Feng, Xiaomiao;Song, Juan;Li, Huihua;Li, Sizhe;Zhu, Hongli;Ge, You;Wang, Shu;Feng, Xiaomiao;Liu, Yuge

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期刊名称:NEW JOURNAL OF CHEMISTRY ( 影响因子:3.591; 五年影响因子:3.385 )

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收录情况: SCI

摘要: MnO2 porous nanowires were prepared with an Au-coated polycarbonate membrane as the template via a simple electrodeposition method. The obtained film could be used directly as a flexible all-solid-state supercapacitor electrode. The structures of the final product were characterized by various characterization techniques including scanning electron microscopy (SEM), X-ray diffraction (XRD), FT-IR spectra, and X-ray photoelectron spectroscopic (XPS). The electrochemical results showed that MnO2 porous nanowire-based electrode materials had high capacitive performances. The areal capacitance of the prepared supercapacitor with a MnO2 deposition time of 200 s was 44.6 mF cm(-2). Under different bending conditions, the areal capacitance of the supercapacitor still remained at 90.5%, indicating the highly flexible property. Furthermore, it nearly remained at 89.6% of its initial capacitive value after 2000 cycles at a current density of 0.4 mA cm(-1), showing its excellent cycle stability. However, the prepared supercapacitor can power a light-emitting-diode (LED) to meet practical applications for micro-power supplies.

分类号: O6

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