Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration

A fast and facile approach based on potentiostatic electrochemical polymerization was used to prepare a polypyrrole/graphene oxide/zinc oxide (PPy/GO/ZnO) nanocomposite deposited on a ﬂexible nickel foam. Fourier transform infrared spectroscopy and energy dispersive X-ray spectroscopy revealed the p...

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Main Authors:	W. K., Chee, H. N., Lim, I., Harrison, K. F., Chong, Z., Zainal, C. H., Ng, N. M., Huang
Format:	Article
Language:	English
Published:	Elsevier 2015
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/12552/ http://umpir.ump.edu.my/id/eprint/12552/ http://umpir.ump.edu.my/id/eprint/12552/ http://umpir.ump.edu.my/id/eprint/12552/7/fist-2015-chong-%20Performance%20of%20Flexible%20and%20Binderless%20Polypyrrole.pdf

id	ump-12552
recordtype	eprints
spelling	ump-125522016-09-05T02:41:06Z http://umpir.ump.edu.my/id/eprint/12552/ Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration W. K., Chee H. N., Lim I., Harrison K. F., Chong Z., Zainal C. H., Ng N. M., Huang QD Chemistry A fast and facile approach based on potentiostatic electrochemical polymerization was used to prepare a polypyrrole/graphene oxide/zinc oxide (PPy/GO/ZnO) nanocomposite deposited on a ﬂexible nickel foam. Fourier transform infrared spectroscopy and energy dispersive X-ray spectroscopy revealed the presence of zinc oxide on the PPy/GO/ZnO nanocomposite. A supercapacitor was fabricated by sandwiching a ﬁlter paper immersed in a sodium sulfate solution between two nickel foam electrodes coated with the PPy/GO/ZnO nanocomposite. The electrochemical performance of the supercapacitor was characterized using a two-electrode conﬁguration, and the cyclic voltammetry curve recorded at a fast scan rate of 100 mV/s was pseudo-rectangular. A speciﬁc capacitance of 94.6 F/g at a current density of 1 A/g was obtained from constant current charge/discharge measurements. The utilization of the pseudo-capacitive behavior of the polypyrrole and zinc oxide, and the electrical double layer capacitance of the graphene oxide, gave rise to a high energy and power density of 10.65 Wh/kg and 258.26 W/kg at 1 A/g, respectively. The capacitance of the supercapacitor after 1000 galvanostatic charge/discharge cycles was 74% of its original value. The potential application of the as-fabricated supercapacitor in realistic energy delivery systems was demonstrated by its ability to light up a light emitting diode for about 2 minutes after being charged for approximately 30 seconds. Keywords: Supercapacitor electrode; Zinc oxide; Graphene oxide; Polypyrrole; Binderless http://dx.doi.org/10.1016/j.electacta.2015.01.080 Elsevier 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12552/7/fist-2015-chong-%20Performance%20of%20Flexible%20and%20Binderless%20Polypyrrole.pdf W. K., Chee and H. N., Lim and I., Harrison and K. F., Chong and Z., Zainal and C. H., Ng and N. M., Huang (2015) Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration. Electrochimica Acta, 157. pp. 88-94. ISSN 0013-4686 http://dx.doi.org/10.1016/j.electacta.2015.01.080 doi:10.1016/j.electacta.2015.01.080
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 W. K., Chee H. N., Lim I., Harrison K. F., Chong Z., Zainal C. H., Ng N. M., Huang Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
description	A fast and facile approach based on potentiostatic electrochemical polymerization was used to prepare a polypyrrole/graphene oxide/zinc oxide (PPy/GO/ZnO) nanocomposite deposited on a ﬂexible nickel foam. Fourier transform infrared spectroscopy and energy dispersive X-ray spectroscopy revealed the presence of zinc oxide on the PPy/GO/ZnO nanocomposite. A supercapacitor was fabricated by sandwiching a ﬁlter paper immersed in a sodium sulfate solution between two nickel foam electrodes coated with the PPy/GO/ZnO nanocomposite. The electrochemical performance of the supercapacitor was characterized using a two-electrode conﬁguration, and the cyclic voltammetry curve recorded at a fast scan rate of 100 mV/s was pseudo-rectangular. A speciﬁc capacitance of 94.6 F/g at a current density of 1 A/g was obtained from constant current charge/discharge measurements. The utilization of the pseudo-capacitive behavior of the polypyrrole and zinc oxide, and the electrical double layer capacitance of the graphene oxide, gave rise to a high energy and power density of 10.65 Wh/kg and 258.26 W/kg at 1 A/g, respectively. The capacitance of the supercapacitor after 1000 galvanostatic charge/discharge cycles was 74% of its original value. The potential application of the as-fabricated supercapacitor in realistic energy delivery systems was demonstrated by its ability to light up a light emitting diode for about 2 minutes after being charged for approximately 30 seconds. Keywords: Supercapacitor electrode; Zinc oxide; Graphene oxide; Polypyrrole; Binderless http://dx.doi.org/10.1016/j.electacta.2015.01.080
format	Article
author	W. K., Chee H. N., Lim I., Harrison K. F., Chong Z., Zainal C. H., Ng N. M., Huang
author_facet	W. K., Chee H. N., Lim I., Harrison K. F., Chong Z., Zainal C. H., Ng N. M., Huang
author_sort	W. K., Chee
title	Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
title_short	Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
title_full	Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
title_fullStr	Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
title_full_unstemmed	Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration
title_sort	performance of flexible and binderless polypyrrole/graphene oxide/zinc oxide supercapacitor electrode in a symmetrical two-electrode configuration
publisher	Elsevier
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12552/ http://umpir.ump.edu.my/id/eprint/12552/ http://umpir.ump.edu.my/id/eprint/12552/ http://umpir.ump.edu.my/id/eprint/12552/7/fist-2015-chong-%20Performance%20of%20Flexible%20and%20Binderless%20Polypyrrole.pdf
first_indexed	2023-09-18T22:14:19Z
last_indexed	2023-09-18T22:14:19Z
_version_	1777415235197468672

Performance of Flexible and Binderless Polypyrrole/Graphene Oxide/Zinc Oxide Supercapacitor Electrode in a Symmetrical Two-Electrode Configuration

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