Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes

Copper oxide (CuO) nanowires of diameter [similar]30–50 nm were developed by an aqueous polymeric solution based electrospinning process and their structural, morphological, and electrochemical properties were studied with the aim to fabricate high performance supercapacitor devices. The wires consi...

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Main Authors:	Rajan, Jose, Vidyadharan, Baiju, Radhiyah, Abd Aziz, Izan Izwan, Misnon, Nurul Khairiyyah, Mohd Zain, M. M., Yusoff, Padmasree, K. P.
Format:	Article
Language:	English
Published:	Royal Society of Chemistry 2014
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/6247/ http://umpir.ump.edu.my/id/eprint/6247/ http://umpir.ump.edu.my/id/eprint/6247/ http://umpir.ump.edu.my/id/eprint/6247/2/J_Mater_Chem_A.pdf

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spelling	ump-62472018-07-27T08:21:25Z http://umpir.ump.edu.my/id/eprint/6247/ Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes Rajan, Jose Vidyadharan, Baiju Radhiyah, Abd Aziz Izan Izwan, Misnon Nurul Khairiyyah, Mohd Zain M. M., Yusoff Padmasree, K. P. TK Electrical engineering. Electronics Nuclear engineering Copper oxide (CuO) nanowires of diameter [similar]30–50 nm were developed by an aqueous polymeric solution based electrospinning process and their structural, morphological, and electrochemical properties were studied with the aim to fabricate high performance supercapacitor devices. The wires consist of densely packed cuboidal particles of size [similar]10 nm characterized by a low degree of crystal defects. Supercapacitor electrodes were fabricated on nickel foam substrates using 75 wt% CuO in 15 wt% conducting carbon and 10 wt% polyvinylidene fluoride. The supercapacitive properties of the electrodes were evaluated in a three-electrode configuration in aqueous electrolytes, viz. KOH and LiOH, employing cyclic voltammetry (CV), charge–discharge cycling (CDC) and electrochemical impedance spectroscopy (EIS). A record specific capacitance (CS) is observed for the present electrospun CuO nanowires: CS [similar] 620 F g−1 in KOH and 581 F g−1 in LiOH at a current density of 2 A g−1 with a Coulombic efficiency of [similar]100%. Compared with the previous results on the electrochemical stability of CuO nanostructures, the material electrospun using an aqueous polymeric solution showed a much higher operational stability (98% at the end of 1000 cycles and 92% at the end of 2000 cycles) owing to its superior crystallinity. The electrochemical properties of the electrodes were determined using EIS to validate the CV and CDC results. Royal Society of Chemistry 2014-02 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6247/2/J_Mater_Chem_A.pdf Rajan, Jose and Vidyadharan, Baiju and Radhiyah, Abd Aziz and Izan Izwan, Misnon and Nurul Khairiyyah, Mohd Zain and M. M., Yusoff and Padmasree, K. P. (2014) Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes. Journal of Materials Chemistry A, 2. pp. 6578-6588. ISSN 2050-7488 (print); 2050-7496 (online) http://pubs.rsc.org/EN/content/articlelanding/2014/ta/c3ta15304e#!divAbstract DOI: 10.1039/C3TA15304E
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Rajan, Jose Vidyadharan, Baiju Radhiyah, Abd Aziz Izan Izwan, Misnon Nurul Khairiyyah, Mohd Zain M. M., Yusoff Padmasree, K. P. Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes
description	Copper oxide (CuO) nanowires of diameter [similar]30–50 nm were developed by an aqueous polymeric solution based electrospinning process and their structural, morphological, and electrochemical properties were studied with the aim to fabricate high performance supercapacitor devices. The wires consist of densely packed cuboidal particles of size [similar]10 nm characterized by a low degree of crystal defects. Supercapacitor electrodes were fabricated on nickel foam substrates using 75 wt% CuO in 15 wt% conducting carbon and 10 wt% polyvinylidene fluoride. The supercapacitive properties of the electrodes were evaluated in a three-electrode configuration in aqueous electrolytes, viz. KOH and LiOH, employing cyclic voltammetry (CV), charge–discharge cycling (CDC) and electrochemical impedance spectroscopy (EIS). A record specific capacitance (CS) is observed for the present electrospun CuO nanowires: CS [similar] 620 F g−1 in KOH and 581 F g−1 in LiOH at a current density of 2 A g−1 with a Coulombic efficiency of [similar]100%. Compared with the previous results on the electrochemical stability of CuO nanostructures, the material electrospun using an aqueous polymeric solution showed a much higher operational stability (98% at the end of 1000 cycles and 92% at the end of 2000 cycles) owing to its superior crystallinity. The electrochemical properties of the electrodes were determined using EIS to validate the CV and CDC results.
format	Article
author	Rajan, Jose Vidyadharan, Baiju Radhiyah, Abd Aziz Izan Izwan, Misnon Nurul Khairiyyah, Mohd Zain M. M., Yusoff Padmasree, K. P.
author_facet	Rajan, Jose Vidyadharan, Baiju Radhiyah, Abd Aziz Izan Izwan, Misnon Nurul Khairiyyah, Mohd Zain M. M., Yusoff Padmasree, K. P.
author_sort	Rajan, Jose
title	Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes
title_short	Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes
title_full	Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes
title_fullStr	Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes
title_full_unstemmed	Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes
title_sort	superior supercapacitive performance in electrospun copper oxide nanowire electrodes
publisher	Royal Society of Chemistry
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/6247/ http://umpir.ump.edu.my/id/eprint/6247/ http://umpir.ump.edu.my/id/eprint/6247/ http://umpir.ump.edu.my/id/eprint/6247/2/J_Mater_Chem_A.pdf
first_indexed	2023-09-18T22:01:50Z
last_indexed	2023-09-18T22:01:50Z
_version_	1777414450151686144

Superior Supercapacitive Performance in Electrospun Copper Oxide Nanowire Electrodes

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