Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors

Gel polymer electrolytes (GPEs) are promising candidates for highly efficient flexible electrochemical energy storage devices as they reduce leakage and size of the device as well as improving versatility with varied choice of solvents, polymers, and ions. However, the electrochemical mechanisms gov...

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Main Authors:	Pal, Bhupender, Amina, Yasin, Ria, Kunwar, Yang, Shengyuan, M. M., Yusoff, Rajan, Jose
Format:	Article
Language:	English
Published:	American Chemical Society (ACS Publications) 2019
Subjects:	QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/24001/ http://umpir.ump.edu.my/id/eprint/24001/ http://umpir.ump.edu.my/id/eprint/24001/ http://umpir.ump.edu.my/id/eprint/24001/7/Polymer%20versus%20Cation%20of%20Gel%20Polymer%20Electrolytes%20in%20the%20Charge%20Storage%20of%20Asymmetric%20Supercapacitors.pdf

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spelling	ump-240012019-03-07T03:05:37Z http://umpir.ump.edu.my/id/eprint/24001/ Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors Pal, Bhupender Amina, Yasin Ria, Kunwar Yang, Shengyuan M. M., Yusoff Rajan, Jose QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering Gel polymer electrolytes (GPEs) are promising candidates for highly efficient flexible electrochemical energy storage devices as they reduce leakage and size of the device as well as improving versatility with varied choice of solvents, polymers, and ions. However, the electrochemical mechanisms governing supercapacitive charge storage using a varied choice of polymers and cations (PVA, PEG, PEO-based Na + and K + ) are not systematically evaluated. In this work, the role of GPEs on the charge storage mechanism of a flexible solid-state asymmetric supercapacitor fabricated using porous carbon as the cathode and SnO 2 -TiO 2 composite flower as the anode with various GPEs, viz., poly(vinyl alcohol), poly(ethylene oxide), poly(ethylene glycol)-NaOH, and KOH, is reported. The composite electrode greatly improves the ion transportation, and the GPEs provide interconnected ion transport channels. The as-fabricated porous carbon/GPE/composite electrode as a flexible asymmetric supercapacitor displays an increased specific capacitance (C S up to ∼42.3 F g -1 ) compared to aqueous electrolytes (up to ∼14.1 F g -1 ). Among the studied GPEs, the poly(ethylene oxide)-NaOH-based GPE showed higher C S than poly(vinyl alcohol)-NaOH and poly(ethylene glycol)-NaOH, as the former offered a high cation response under the charge/discharge process. American Chemical Society (ACS Publications) 2019-01-01 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/24001/7/Polymer%20versus%20Cation%20of%20Gel%20Polymer%20Electrolytes%20in%20the%20Charge%20Storage%20of%20Asymmetric%20Supercapacitors.pdf Pal, Bhupender and Amina, Yasin and Ria, Kunwar and Yang, Shengyuan and M. M., Yusoff and Rajan, Jose (2019) Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors. Industrial and Engineering Chemistry Research, 58 (2). pp. 654-664. ISSN 0888-5885 https://pubs.acs.org/doi/10.1021/acs.iecr.8b03902 http://pubs.acs.org/doi/abs/10.1021/acs.iecr.8b03902
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering Pal, Bhupender Amina, Yasin Ria, Kunwar Yang, Shengyuan M. M., Yusoff Rajan, Jose Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
description	Gel polymer electrolytes (GPEs) are promising candidates for highly efficient flexible electrochemical energy storage devices as they reduce leakage and size of the device as well as improving versatility with varied choice of solvents, polymers, and ions. However, the electrochemical mechanisms governing supercapacitive charge storage using a varied choice of polymers and cations (PVA, PEG, PEO-based Na + and K + ) are not systematically evaluated. In this work, the role of GPEs on the charge storage mechanism of a flexible solid-state asymmetric supercapacitor fabricated using porous carbon as the cathode and SnO 2 -TiO 2 composite flower as the anode with various GPEs, viz., poly(vinyl alcohol), poly(ethylene oxide), poly(ethylene glycol)-NaOH, and KOH, is reported. The composite electrode greatly improves the ion transportation, and the GPEs provide interconnected ion transport channels. The as-fabricated porous carbon/GPE/composite electrode as a flexible asymmetric supercapacitor displays an increased specific capacitance (C S up to ∼42.3 F g -1 ) compared to aqueous electrolytes (up to ∼14.1 F g -1 ). Among the studied GPEs, the poly(ethylene oxide)-NaOH-based GPE showed higher C S than poly(vinyl alcohol)-NaOH and poly(ethylene glycol)-NaOH, as the former offered a high cation response under the charge/discharge process.
format	Article
author	Pal, Bhupender Amina, Yasin Ria, Kunwar Yang, Shengyuan M. M., Yusoff Rajan, Jose
author_facet	Pal, Bhupender Amina, Yasin Ria, Kunwar Yang, Shengyuan M. M., Yusoff Rajan, Jose
author_sort	Pal, Bhupender
title	Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
title_short	Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
title_full	Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
title_fullStr	Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
title_full_unstemmed	Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
title_sort	polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors
publisher	American Chemical Society (ACS Publications)
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/24001/ http://umpir.ump.edu.my/id/eprint/24001/ http://umpir.ump.edu.my/id/eprint/24001/ http://umpir.ump.edu.my/id/eprint/24001/7/Polymer%20versus%20Cation%20of%20Gel%20Polymer%20Electrolytes%20in%20the%20Charge%20Storage%20of%20Asymmetric%20Supercapacitors.pdf
first_indexed	2023-09-18T22:36:09Z
last_indexed	2023-09-18T22:36:09Z
_version_	1777416608737656832

Polymer versus cation of gel polymer electrolytes in the charge storage of asymmetric supercapacitors

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