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Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties

Midhun Harilal, Syam G. Krishnan, Bincy Lathakumary Vijayan, M. Venkatashamy Reddy, Stefan Adams, Andrew Barron Orcid Logo, Mashitah M. Yusoff, Rajan Jose

Materials & Design, Volume: 122, Pages: 376 - 384

Swansea University Author: Andrew Barron Orcid Logo

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DOI (Published version): 10.1016/j.matdes.2017.03.024

Abstract

This paper reports the synthesis of continuous nanobelts, whose thickness is less than half of its pore diameter, of a material hybrid composing of nanograins of nickel oxide and cobalt oxide by electrospinning technique and their capacitive charge storage properties. While the constituent binary me...

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Published in: Materials & Design
ISSN: 0264-1275
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa32325
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spelling 2017-04-04T09:28:05.1571154 v2 32325 2017-03-08 Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2017-03-08 CHEG This paper reports the synthesis of continuous nanobelts, whose thickness is less than half of its pore diameter, of a material hybrid composing of nanograins of nickel oxide and cobalt oxide by electrospinning technique and their capacitive charge storage properties. While the constituent binary metal oxides (NiO and Co3O4) formed solid cylindrical nanofibers the hybrid and a stoichiometric compound in the Ni-Co-O system, i.e., spinel-type NiCo2O4, formed as thin nanobelts due to the magnetic interaction between nickel and cobalt ions. The nanobelts showed six-fold larger surface area, wider pores, and impressive charge storage capabilities compared to the cylindrical fibres. The hybrid nanobelts showed high specific capacitance (CS ~ 1250 F g− 1 at 10 A g− 1 in 6 M KOH) with high capacity retention, which is appreciably larger than found for the stoichiometric compound (~ 970 F g− 1 at 10 A g− 1). It is shown that the hybrid nanobelts have lower internal resistance (1.3 Ω), higher diffusion coefficient (4.6 × 10− 13 cm2 s− 1) and smaller relaxation time (0.03 s) than the benchmark materials studied here. Journal Article Materials & Design 122 376 384 0264-1275 Nanocomposites, Hybrid metal oxides, Energy storage devices, Renewable energy, Electrochemical charge storage 15 5 2017 2017-05-15 10.1016/j.matdes.2017.03.024 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2017-04-04T09:28:05.1571154 2017-03-08T09:25:34.2601130 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Midhun Harilal 1 Syam G. Krishnan 2 Bincy Lathakumary Vijayan 3 M. Venkatashamy Reddy 4 Stefan Adams 5 Andrew Barron 0000-0002-2018-8288 6 Mashitah M. Yusoff 7 Rajan Jose 8 0032325-08032017092730.pdf Harilal2017.pdf 2017-03-08T09:27:30.0470000 Output 2436424 application/pdf Accepted Manuscript true 2018-03-08T00:00:00.0000000 true eng
title Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
spellingShingle Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
Andrew Barron
title_short Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
title_full Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
title_fullStr Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
title_full_unstemmed Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
title_sort Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties
author_id_str_mv 92e452f20936d688d36f91c78574241d
author_id_fullname_str_mv 92e452f20936d688d36f91c78574241d_***_Andrew Barron
author Andrew Barron
author2 Midhun Harilal
Syam G. Krishnan
Bincy Lathakumary Vijayan
M. Venkatashamy Reddy
Stefan Adams
Andrew Barron
Mashitah M. Yusoff
Rajan Jose
format Journal article
container_title Materials & Design
container_volume 122
container_start_page 376
publishDate 2017
institution Swansea University
issn 0264-1275
doi_str_mv 10.1016/j.matdes.2017.03.024
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description This paper reports the synthesis of continuous nanobelts, whose thickness is less than half of its pore diameter, of a material hybrid composing of nanograins of nickel oxide and cobalt oxide by electrospinning technique and their capacitive charge storage properties. While the constituent binary metal oxides (NiO and Co3O4) formed solid cylindrical nanofibers the hybrid and a stoichiometric compound in the Ni-Co-O system, i.e., spinel-type NiCo2O4, formed as thin nanobelts due to the magnetic interaction between nickel and cobalt ions. The nanobelts showed six-fold larger surface area, wider pores, and impressive charge storage capabilities compared to the cylindrical fibres. The hybrid nanobelts showed high specific capacitance (CS ~ 1250 F g− 1 at 10 A g− 1 in 6 M KOH) with high capacity retention, which is appreciably larger than found for the stoichiometric compound (~ 970 F g− 1 at 10 A g− 1). It is shown that the hybrid nanobelts have lower internal resistance (1.3 Ω), higher diffusion coefficient (4.6 × 10− 13 cm2 s− 1) and smaller relaxation time (0.03 s) than the benchmark materials studied here.
published_date 2017-05-15T03:39:36Z
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score 10.998116

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