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One-step potentiostatic electrodeposition of polypyrrole/graphene oxide/ multi-walled carbon nanotubes ternary nanocomposite for supercapacitor


Citation

Mohd Abdah, Muhammad Amirul Aizat and Mohd Razali, Nurnaili Syahirah and Lim, Pei Teng and Kulandaivalu, Shalini and Sulaiman, Yusran (2018) One-step potentiostatic electrodeposition of polypyrrole/graphene oxide/ multi-walled carbon nanotubes ternary nanocomposite for supercapacitor. Materials Chemistry and Physics, 219. pp. 120-128. ISSN 0254-0584; ESSN: 1879-3312

Abstract

A ternary nanocomposite consisting of polypyrrole (PPy), graphene oxide (GO) and multi-walled carbon nanotube (MWCNT) for supercapacitor was prepared via facile one step potentiostatic technique. Field emission scanning electron microscopy (FESEM) images displayed a randomly entangled nanostructure of MWCNT with rough wrinkle surface of GO incorporating with PPy granular structure represent the morphology of PPy/GO/MWCNT nanocomposite. The ternary nanocomposite was further justified its chemical composition by using Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. PPy/GO/MWCNT exhibited a high specific capacitance of 358.69 F g−1 at a scan rate of 100 mV s−1 in 1 M Na2SO4, which is comparatively higher than both binary nanocomposites, PPy/MWCNT (207.52 F g−1) and PPy/GO (139.03 F g−1). The PPy/GO/MWCNT nanocomposite also possessed much longer charge-discharge time and excellent cycling stability (88.69%) with the specific energy of 40.45 Wh/kg and specific power of 441.24 W/kg. Therefore, PPy/GO/MWCNT nanocomposite is a potential electrode material for high-performance supercapacitor.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.matchemphys.2018.08.018
Publisher: Elsevier
Keywords: Ternary nanocomposite; Supercapacitor; Polypyrrole; Graphene oxide; Carbon nanotube
Depositing User: Mr. Sazali Mohamad
Date Deposited: 05 Dec 2019 02:44
Last Modified: 05 Dec 2019 02:44
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.matchemphys.2018.08.018
URI: http://psasir.upm.edu.my/id/eprint/75135
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