Polyaniline-corn husk fiber composite based flexible self-standing electrode: Preparation and electrochemical properties

WEI Huige; LI Guixing; LEI Xiangnan; PENG Zifang; KONG Deshuo; WAN Tong

doi:10.13801/j.cnki.fhclxb.20210906.006

Volume 39 Issue 7

Jul. 2022

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WEI Huige, LI Guixing, LEI Xiangnan, et al. Polyaniline-corn husk fiber composite based flexible self-standing electrode: Preparation and electrochemical properties[J]. Acta Materiae Compositae Sinica, 2022, 39(7): 3462-3468. doi: 10.13801/j.cnki.fhclxb.20210906.006

Citation:

WEI Huige, LI Guixing, LEI Xiangnan, et al. Polyaniline-corn husk fiber composite based flexible self-standing electrode: Preparation and electrochemical properties[J]. Acta Materiae Compositae Sinica, 2022, 39(7): 3462-3468. doi: 10.13801/j.cnki.fhclxb.20210906.006

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Polyaniline-corn husk fiber composite based flexible self-standing electrode: Preparation and electrochemical properties

doi: 10.13801/j.cnki.fhclxb.20210906.006

Green Energy Laboratory, Department of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin 300457, China

Received Date: 2021-06-18
Accepted Date: 2021-08-21
Rev Recd Date: 2021-08-07

Available Online: 2021-09-07

Publish Date: 2022-07-30

Abstract

Abstract

In order to meet the increasing requirements of wearable electronic devices, low-cost, high-performance flexible supercapacitors have become a research hotspot. In this work, flexible, self-standing PANI-CHF-GEL electrode was obtained by growing polyaniline (PANI) on the surface of corn husk fiber (CHF) and mixed with polyvinyl alcohol/sulfuric acid (PVA/H₂SO₄) gel, followed by a facile frozen-thawing method. PANI-CHF-GEL exhibits excellent mechanical properties (a fracture strength of 259 kPa at a fracture strain of 121%) and good toughness (a fracture energy of 0.167 MJ·cm⁻³). Employing PVA/H₂SO₄ as the gel electrolyte, the symmetric PANI-CHF-GEL//PANI-CHF-GEL solid supercapacitor delivers an areal capacitance of 1789.74 mF·cm⁻², a power density of 0.34 mW·cm⁻², and a corresponding energy density of 3.51 mW·h·cm⁻² (@3.00 mA·cm⁻²). Moreover, the device retains its original properties even bent 90°, indicating its promise potentials for wearable electronics.
- corn husk fiber,
- polyaniline,
- composites,
- flexibility,
- self-standing,
- solid supercapacitor,
- electrochemical
Long Abstrsct
Innovation Points

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References(23)

References

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