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HomeKey Engineering MaterialsKey Engineering Materials Vol. 751r-GO/MWCNTs Nanocomposite Film as Electrode...

r-GO/MWCNTs Nanocomposite Film as Electrode Material for Supercapacitor

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Abstract:

We synthesized a reduced graphene oxide (r-GO) multi-walled carbon nanotube (MWCNTs) nanocomposite film via layer by layer (LBL) assembly. This structure was prepared by vacuum filtration and heat-treated at a low temperature of 500°C. The morphology of the sample was determined by field emission electron spectroscopy (FE-SEM). The structural detail and the chemical analysis were characterized by using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. The cyclic voltammetry (CV) curve of r-GO/MWCNTs nanocomposite appeared nearly rectangular in shape. The current density (A/g) was gradually increased by increasing the scan rate of the voltage, as high as a scan rate of 500 mVs^-1. At a current density of 10 mAg^-1, the specific capacitance of the nanocomposite, estimated by galvanostatic (GA) charge/discharge measurement, is 150 Fg^-1. These nanocomposites can be developed for supercapacitor electrodes.

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Materials Science and Technology IX

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Periodical:

Key Engineering Materials (Volume 751)

Pages:

425-430

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.751.425

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Online since:

August 2017

Authors:

Suttinart Noothongkaew*, Orathai Thumthan, Pattanasuk Chamninok, Ki Seok An

Keywords:

Graphene Oxide, Reduced Graphene Oxide (RGO), Supercapacitor, Thermal Annealing

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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