"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors

Storage of energy under the electrochemical double layer and fast reversible redox reaction mode, which devices are known as supercapacitors, with simultaneously high energy and power densities is an active area of research recently to develop deployable clean energy devices. The transition metal ox...

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Main Authors:	Vidhyadharan, Baiju, Izan Izwan, Misnon, Nurul Khayyriah, Mohd Zain, Radhiyah, Abd Aziz, M. M., Yusoff, Rajan, Jose
Format:	Conference or Workshop Item
Language:	English
Published:	2013
Subjects:	QC Physics
Online Access:	http://umpir.ump.edu.my/id/eprint/5775/ http://umpir.ump.edu.my/id/eprint/5775/1/SCI-007.pdf

id	ump-5775
recordtype	eprints
spelling	ump-57752018-01-22T01:00:28Z http://umpir.ump.edu.my/id/eprint/5775/ "Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors Vidhyadharan, Baiju Izan Izwan, Misnon Nurul Khayyriah, Mohd Zain Radhiyah, Abd Aziz M. M., Yusoff Rajan, Jose QC Physics Storage of energy under the electrochemical double layer and fast reversible redox reaction mode, which devices are known as supercapacitors, with simultaneously high energy and power densities is an active area of research recently to develop deployable clean energy devices. The transition metal oxide semiconductors such as CuO, RuO2, MnO2, etc. offers pseudo capacitance arise from an electrochemical reaction in addition to the conventional double layer capacitance; therefore, they are a preferred choice to build highly efficient supercapacitors. In this research, we have developed nanowires of a number of transition metal oxides including CuO, NiO and Co3O by a commercially viable nanofabrication technique, known as electrospinning, and studied their structural, morphological, and electrochemical properties. The nanowires of ~ 50 â�� 60 nm were obtained by annealing the electrospun polyvinyl alcohol fibrous mats containing a uniform dispersion of metal acetate. The supercapacitor devices were fabricated by dispersing the 70 wt.% active material in 15wt.% conducting carbon and 10 wt.% polyvinyl difluoride and pasted on a nickel foam substrate. KOH was used as the electrolyte. The specific capacitance and cycling stability of the devices were obtained from cyclic voltammetry and galvanostatic charge/discharge cycling, respectively. The devices exhibited a specific capacitance of ~620 F/g ,670 F/g and 1047 F/g for CuO, NiO and Co3O4, 4 respectively at a current density of 1 A/g in 6M KOH with a columbic efficiency of ~96%. The electrospun metal oxide nanowires could therefore be an acceptable choice for building highly efficient supercapacitor devices. 2013 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5775/1/SCI-007.pdf Vidhyadharan, Baiju and Izan Izwan, Misnon and Nurul Khayyriah, Mohd Zain and Radhiyah, Abd Aziz and M. M., Yusoff and Rajan, Jose (2013) "Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors. In: Proceedings of Malaysian Technical Universities Conference on Engineering & Technology (MUCET 2013), 3-4 December 2013 , Kuantan, Pahang. p. 1..
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QC Physics
spellingShingle	QC Physics Vidhyadharan, Baiju Izan Izwan, Misnon Nurul Khayyriah, Mohd Zain Radhiyah, Abd Aziz M. M., Yusoff Rajan, Jose "Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors
description	Storage of energy under the electrochemical double layer and fast reversible redox reaction mode, which devices are known as supercapacitors, with simultaneously high energy and power densities is an active area of research recently to develop deployable clean energy devices. The transition metal oxide semiconductors such as CuO, RuO2, MnO2, etc. offers pseudo capacitance arise from an electrochemical reaction in addition to the conventional double layer capacitance; therefore, they are a preferred choice to build highly efficient supercapacitors. In this research, we have developed nanowires of a number of transition metal oxides including CuO, NiO and Co3O by a commercially viable nanofabrication technique, known as electrospinning, and studied their structural, morphological, and electrochemical properties. The nanowires of ~ 50 â�� 60 nm were obtained by annealing the electrospun polyvinyl alcohol fibrous mats containing a uniform dispersion of metal acetate. The supercapacitor devices were fabricated by dispersing the 70 wt.% active material in 15wt.% conducting carbon and 10 wt.% polyvinyl difluoride and pasted on a nickel foam substrate. KOH was used as the electrolyte. The specific capacitance and cycling stability of the devices were obtained from cyclic voltammetry and galvanostatic charge/discharge cycling, respectively. The devices exhibited a specific capacitance of ~620 F/g ,670 F/g and 1047 F/g for CuO, NiO and Co3O4, 4 respectively at a current density of 1 A/g in 6M KOH with a columbic efficiency of ~96%. The electrospun metal oxide nanowires could therefore be an acceptable choice for building highly efficient supercapacitor devices.
format	Conference or Workshop Item
author	Vidhyadharan, Baiju Izan Izwan, Misnon Nurul Khayyriah, Mohd Zain Radhiyah, Abd Aziz M. M., Yusoff Rajan, Jose
author_facet	Vidhyadharan, Baiju Izan Izwan, Misnon Nurul Khayyriah, Mohd Zain Radhiyah, Abd Aziz M. M., Yusoff Rajan, Jose
author_sort	Vidhyadharan, Baiju
title	"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors
title_short	"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors
title_full	"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors
title_fullStr	"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors
title_full_unstemmed	"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors
title_sort	"green" -electrospun metal oxide nanowires for high performance supercapacitors
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/5775/ http://umpir.ump.edu.my/id/eprint/5775/1/SCI-007.pdf
first_indexed	2023-09-18T22:01:09Z
last_indexed	2023-09-18T22:01:09Z
_version_	1777414407325745152

"Green" -electrospun Metal Oxide Nanowires for High Performance Supercapacitors

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