Porous WO3/graphene/polyester textile electrode materials with enhanced electrochemical performance for flexible solid-state supercapacitors

[Display omitted] In this work, a flexible and porous WO3/grapheme/polyester (WO3/G/PT) textile electrode was successfully prepared by in situ growing WO3 on the fiber surface inside G/PT composite fabrics. The unique electrode structure facilitates to enhance the energy storage performance because...

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Bibliographic Details
Published in:Journal of colloid and interface science 2018-01, Vol.510, p.1-11
Main Authors: Jin, Li-Na, Liu, Ping, Jin, Chun, Zhang, Jia-Nan, Bian, Shao-Wei
Format: Article
Language:English
Subjects:
Electrode materials
Flexible supercapacitors
Graphene
Textile
WO3
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Summary:[Display omitted] In this work, a flexible and porous WO3/grapheme/polyester (WO3/G/PT) textile electrode was successfully prepared by in situ growing WO3 on the fiber surface inside G/PT composite fabrics. The unique electrode structure facilitates to enhance the energy storage performance because the 3D conductive network constructed by the G/PT increase the electron transportation rate, nanotructured WO3 exposed enhanced electrochemically active surface area and the hierarchically porous structure improved the electrolyte ion diffusion rate. The optimized WO3/G/PT textile electrode exhibited good electrochemical performance with a high areal capacitance of 308.2mFcm−2 at a scan rate of 2mVs−1 and excellent cycling stability. A flexible asymmetric supercapacitor (ASC) device was further fabricated by using the WO3/G/PT electrode and G/PT electrode, which exhibited a good specific capacitance of 167.6mFcm−3 and high energy density of 60μWhcm−3 at the power density of 2320 μWcm−3.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2017.08.103