Paper Based, Expanded Graphite/Polypyrrole Nanocomposite Supercapacitors Free from Binders and Current Collectors

Date

2018-01-01

Author

YÜKSEL, Recep
UYSAL, Nilperi
Aydınlı, Alptekin
Ünalan, Hüsnü Emrah

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Expanded graphite (EG) - polypyrrole (PPy) hybrid nanocomposites are used for the fabrication of paper-based highly flexible supercapacitor devices. Brush-painted EG electrodes are utilized as electrodes for the electrodeposition of PPy, resulting in the formation of nanocomposite electrodes with the desired material loading. Fabricated paper-based electrodes are free from heavy current collectors, binders, and conductive additives. Within nanocomposite electrodes, expanded graphite layer on paper facilitates the charge transfer and conformal PPy layer atop improves capacitance through pseudocapacitance. Fabricated nanocomposite electrodes are highly flexible, thanks to excellent mechanical integrity among paper, EG and PPy components. A specific capacitance of 177.8 F g(-1), in conjunction with a capacity retention of more than 94.9% is obtained following 5000 cycles. With the simple fabrication and promising electrochemical performance obtained herein, fabricated paper-based nanocomposite supercapacitors are envisaged for utilization as power sources in paper electronics. (C) 2018 The Electrochemical Society.

Subject Keywords

High-Performance, Wearable electronics, Conducting polymer, Graphene, Polypyrrole, Carbon nanotube, Composite, Capacitance, Reduction, Pyrrol

URI

https://hdl.handle.net/11511/31666

Journal

JOURNAL OF THE ELECTROCHEMICAL SOCIETY

DOI

https://doi.org/10.1149/2.1051802jes

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

R. YÜKSEL, N. UYSAL, A. Aydınlı, and H. E. Ünalan, “Paper Based, Expanded Graphite/Polypyrrole Nanocomposite Supercapacitors Free from Binders and Current Collectors,” JOURNAL OF THE ELECTROCHEMICAL SOCIETY, pp. 0–0, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31666.