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Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes

Electrode material has been cited as one of the most important determining factors in classifying an energy storage system’s charge storage mechanism, i.e., as battery-type or supercapacitive-type. In this paper, we show that along with the electrode material, the electrolyte also plays a role in de...

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Main Authors: Kunwar, Ria, Krishnan, Syam G., Izan Izwan, Misnon, Zabihi, Fatemeh, Yang, Shengyuan, Yang, Chun-Chen, Rajan, Jose
Format: Article
Language:English
English
Published: Springer 2021
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://umpir.ump.edu.my/id/eprint/37936/1/Transformation%20of%20supercapacitive%20charge%20storage%20behaviour%20.pdf
http://umpir.ump.edu.my/id/eprint/37936/2/Transformation%20of%20supercapacitive%20charge%20storage%20behaviour_FULL.pdf
http://umpir.ump.edu.my/id/eprint/37936/
https://doi.org/10.1007/s42765-021-00083-x
https://doi.org/10.1007/s42765-021-00083-x
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spelling my.ump.umpir.379362023-07-05T04:17:24Z http://umpir.ump.edu.my/id/eprint/37936/ Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes Kunwar, Ria Krishnan, Syam G. Izan Izwan, Misnon Zabihi, Fatemeh Yang, Shengyuan Yang, Chun-Chen Rajan, Jose TK Electrical engineering. Electronics Nuclear engineering Electrode material has been cited as one of the most important determining factors in classifying an energy storage system’s charge storage mechanism, i.e., as battery-type or supercapacitive-type. In this paper, we show that along with the electrode material, the electrolyte also plays a role in determining the charge storage behaviour of the system. For the purpose of our research, we chose multi-elemental spinal type CuMn2O4 metal oxide nanofibers to prove the hypothesis. The material is synthesized as nanofibers of diameter ~ 120 to 150 nm in large scales by a pilot scale electrospinning set up. It was then tested in three different electrolytes (1 M KOH, 1 M Na2SO4 and 1 M Li2SO4), two of which are neutral and the third is alkaline (KOH). The cyclic voltammograms and the galvanostatic charge–discharge of the electrode material in a three-electrode system measurement showed that it exhibit different charge storage mechanism in different electrolyte solutions. For the neutral electrolytes, a capacitive behaviour was observed whereas a battery-type behaviour was seen for the alkaline electrolyte. This leads us to conclude that the charge storage mechanism, along with the active material, also depends on the electrolyte used. Springer 2021-08 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/37936/1/Transformation%20of%20supercapacitive%20charge%20storage%20behaviour%20.pdf pdf en http://umpir.ump.edu.my/id/eprint/37936/2/Transformation%20of%20supercapacitive%20charge%20storage%20behaviour_FULL.pdf Kunwar, Ria and Krishnan, Syam G. and Izan Izwan, Misnon and Zabihi, Fatemeh and Yang, Shengyuan and Yang, Chun-Chen and Rajan, Jose (2021) Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes. Advanced Fiber Materials, 3 (4). 265 -274. ISSN 2524-7921. (Published) https://doi.org/10.1007/s42765-021-00083-x https://doi.org/10.1007/s42765-021-00083-x
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Kunwar, Ria
Krishnan, Syam G.
Izan Izwan, Misnon
Zabihi, Fatemeh
Yang, Shengyuan
Yang, Chun-Chen
Rajan, Jose
Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes
description Electrode material has been cited as one of the most important determining factors in classifying an energy storage system’s charge storage mechanism, i.e., as battery-type or supercapacitive-type. In this paper, we show that along with the electrode material, the electrolyte also plays a role in determining the charge storage behaviour of the system. For the purpose of our research, we chose multi-elemental spinal type CuMn2O4 metal oxide nanofibers to prove the hypothesis. The material is synthesized as nanofibers of diameter ~ 120 to 150 nm in large scales by a pilot scale electrospinning set up. It was then tested in three different electrolytes (1 M KOH, 1 M Na2SO4 and 1 M Li2SO4), two of which are neutral and the third is alkaline (KOH). The cyclic voltammograms and the galvanostatic charge–discharge of the electrode material in a three-electrode system measurement showed that it exhibit different charge storage mechanism in different electrolyte solutions. For the neutral electrolytes, a capacitive behaviour was observed whereas a battery-type behaviour was seen for the alkaline electrolyte. This leads us to conclude that the charge storage mechanism, along with the active material, also depends on the electrolyte used.
format Article
author Kunwar, Ria
Krishnan, Syam G.
Izan Izwan, Misnon
Zabihi, Fatemeh
Yang, Shengyuan
Yang, Chun-Chen
Rajan, Jose
author_facet Kunwar, Ria
Krishnan, Syam G.
Izan Izwan, Misnon
Zabihi, Fatemeh
Yang, Shengyuan
Yang, Chun-Chen
Rajan, Jose
author_sort Kunwar, Ria
title Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes
title_short Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes
title_full Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes
title_fullStr Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes
title_full_unstemmed Transformation of supercapacitive charge storage behaviour in a multi elemental spinel CuMn2O4 nanofibers with alkaline and neutral electrolytes
title_sort transformation of supercapacitive charge storage behaviour in a multi elemental spinel cumn2o4 nanofibers with alkaline and neutral electrolytes
publisher Springer
publishDate 2021
url http://umpir.ump.edu.my/id/eprint/37936/1/Transformation%20of%20supercapacitive%20charge%20storage%20behaviour%20.pdf
http://umpir.ump.edu.my/id/eprint/37936/2/Transformation%20of%20supercapacitive%20charge%20storage%20behaviour_FULL.pdf
http://umpir.ump.edu.my/id/eprint/37936/
https://doi.org/10.1007/s42765-021-00083-x
https://doi.org/10.1007/s42765-021-00083-x
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score 13.251813

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