Fabrication of flexible micro-supercapacitors based on low-oxidized graphene/polyaniline/porous carbon ternary composites with high area capacitance

Miniaturization of supercapacitors offers an attractive route to the fabrication of portable and wearable electronic devices, but still suffers from limited areal capacity. Herein, we utilize a facile stamping approach to fabricate flexible paper-based micro-supercapacitors that are based on the ter...

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Bibliographic Details
Published in:Journal of science. Advanced materials and devices 2023-12, Vol.8 (4), p.100643, Article 100643
Main Authors: Xu, Chuanfeng, Wang, Xia, Liu, Ke, Yu, Jie, Zhang, Jianming, Jiang, Min
Format: Article
Language:English
Subjects:
Area capacitance
Flexibility
Metal-organic frameworks
Micro-supercapacitors
Polyaniline
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Summary:Miniaturization of supercapacitors offers an attractive route to the fabrication of portable and wearable electronic devices, but still suffers from limited areal capacity. Herein, we utilize a facile stamping approach to fabricate flexible paper-based micro-supercapacitors that are based on the ternary composite containing polyaniline (PANI) as patterned interdigital electrode materials. The ternary composites are composed of PANI, metal-organic frameworks derived from porous carbon (C800) and low-oxidized graphene (LGE). Benefiting from the synergy of C800 and LGE, the electrical conductivity and capacitance retention of PANI composites were enhanced, obviously. The resultant composites displayed high areal capacitance of 162 mF cm−2, remarkable energy density of 24.9 μWh·cm−2, 90 % capacitance over thousands of charge-discharge cycles and excellent stability against bending even at large angles.
ISSN:2468-2179
2468-2179
DOI:10.1016/j.jsamd.2023.100643