Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes

In this paper, graphene oxide (GO) was prepared by the Hummers' method and reduced using hydrazine to produce graphene nanosheets (GNS). Physicochemical characterizations of the prepared materials were performed using XRD, FTIR, TGA, DTA, BET, UV-vis, Raman, and FESEM techniques. The results el...

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Main Authors:	Ali, Gomaa A. M., Makhlouf, Salah A., Chong, Kwok Feng, M. M., Yusoff
Format:	Article
Language:	English
Published:	Advanced Study Center Co. Ltd. 2015
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/12557/ http://umpir.ump.edu.my/id/eprint/12557/ http://umpir.ump.edu.my/id/eprint/12557/1/fist-2015-gomaa-Structural%20and%20Electrochemical.pdf

id	ump-12557
recordtype	eprints
spelling	ump-125572018-07-26T03:34:57Z http://umpir.ump.edu.my/id/eprint/12557/ Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes Ali, Gomaa A. M. Makhlouf, Salah A. Chong, Kwok Feng M. M., Yusoff QD Chemistry In this paper, graphene oxide (GO) was prepared by the Hummers' method and reduced using hydrazine to produce graphene nanosheets (GNS). Physicochemical characterizations of the prepared materials were performed using XRD, FTIR, TGA, DTA, BET, UV-vis, Raman, and FESEM techniques. The results elucidate the structure, morphology, mesoporousity and thermal stability of the prepared samples. Detailed electrochemical studies have been conducted on GNS by CV, galvanostatic and complex impedance measurements indicating some interesting features. GNS shows a specific capacitance of 140 F g-1 at 0.05 A g-1. GNS shows high cyclic stability of about 86% over 1100 cycles at a current density of 1 A g-1. The large electrochemical active surface area suggests that most of the nanosheets are accessible to ions adsorption in the electrolyte system. Impedance spectra show low resistance of GNS, supporting its suitability for supercapacitor electrode applications. Advanced Study Center Co. Ltd. 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12557/1/fist-2015-gomaa-Structural%20and%20Electrochemical.pdf Ali, Gomaa A. M. and Makhlouf, Salah A. and Chong, Kwok Feng and M. M., Yusoff (2015) Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes. Reviews on Advanced Materials Science, 41 (1). pp. 35-43. ISSN 1605-8127 http://www.ipme.ru/e-journals/RAMS/no_14115/04_14115_ali.pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry
spellingShingle	QD Chemistry Ali, Gomaa A. M. Makhlouf, Salah A. Chong, Kwok Feng M. M., Yusoff Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes
description	In this paper, graphene oxide (GO) was prepared by the Hummers' method and reduced using hydrazine to produce graphene nanosheets (GNS). Physicochemical characterizations of the prepared materials were performed using XRD, FTIR, TGA, DTA, BET, UV-vis, Raman, and FESEM techniques. The results elucidate the structure, morphology, mesoporousity and thermal stability of the prepared samples. Detailed electrochemical studies have been conducted on GNS by CV, galvanostatic and complex impedance measurements indicating some interesting features. GNS shows a specific capacitance of 140 F g-1 at 0.05 A g-1. GNS shows high cyclic stability of about 86% over 1100 cycles at a current density of 1 A g-1. The large electrochemical active surface area suggests that most of the nanosheets are accessible to ions adsorption in the electrolyte system. Impedance spectra show low resistance of GNS, supporting its suitability for supercapacitor electrode applications.
format	Article
author	Ali, Gomaa A. M. Makhlouf, Salah A. Chong, Kwok Feng M. M., Yusoff
author_facet	Ali, Gomaa A. M. Makhlouf, Salah A. Chong, Kwok Feng M. M., Yusoff
author_sort	Ali, Gomaa A. M.
title	Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes
title_short	Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes
title_full	Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes
title_fullStr	Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes
title_full_unstemmed	Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes
title_sort	structural and electrochemical characteristics of graphene nanosheets as supercapacitor electrodes
publisher	Advanced Study Center Co. Ltd.
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12557/ http://umpir.ump.edu.my/id/eprint/12557/ http://umpir.ump.edu.my/id/eprint/12557/1/fist-2015-gomaa-Structural%20and%20Electrochemical.pdf
first_indexed	2023-09-18T22:14:19Z
last_indexed	2023-09-18T22:14:19Z
_version_	1777415235630530560

Structural and Electrochemical Characteristics of Graphene Nanosheets as Supercapacitor Electrodes

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