Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications

Hydrogel electrolytes for energy storage devices have made great progress, yet they present a major challenge in the assembly of flexible supercapacitors with high ionic conductivity and self-healing properties. Herein, a smart self-healing hydrogel electrolyte based on alginate/poly (3,4-ethylenedi...

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Main Authors: Nujud M. Badawi, Mamta Bhatia, S. Ramesh, K. Ramesh, Mufsir Kuniyil, Mohammed Rafi Shaik, Mujeeb Khan, Baji Shaik, Syed F. Adil
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/15/3/571
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author Nujud M. Badawi
Mamta Bhatia
S. Ramesh
K. Ramesh
Mufsir Kuniyil
Mohammed Rafi Shaik
Mujeeb Khan
Baji Shaik
Syed F. Adil
author_facet Nujud M. Badawi
Mamta Bhatia
S. Ramesh
K. Ramesh
Mufsir Kuniyil
Mohammed Rafi Shaik
Mujeeb Khan
Baji Shaik
Syed F. Adil
author_sort Nujud M. Badawi
collection DOAJ
description Hydrogel electrolytes for energy storage devices have made great progress, yet they present a major challenge in the assembly of flexible supercapacitors with high ionic conductivity and self-healing properties. Herein, a smart self-healing hydrogel electrolyte based on alginate/poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (alginate/PEDOT:PSS)(A/P:P) was prepared, wherein H<sub>2</sub>SO<sub>4</sub> was employed as a polymeric initiator, as well as a source of ions. PEDOT:PSS is a semi-interpenetrating network (IPN) that has been used in recent studies to exhibit quick self-healing properties with the H₂SO₃ additive, which further improves its mechanical strength and self-healing performance. A moderate amount of PEDOT:PSS in the hydrogel (5 mL) was found to significantly improve the ionic conductivity compared to the pure hydrogel of alginate. Interestingly, the alginate/PEDOT:PSS composite hydrogel exhibited an excellent ability to self-heal and repair its original composition within 10 min of cutting. Furthermore, the graphite conductive substrate-based supercapacitor with the alginate/PEDOT:PSS hydrogel electrolyte provided a high specific capacitance of 356 F g<sup>−1</sup> at 100 mV/s g<sup>−1</sup>. The results demonstrate that the A/P:P ratio with 5 mL PEDOT:PSS had a base sheet resistance of 0.9 Ω/square. This work provides a new strategy for designing flexible self-healing hydrogels for application in smart wearable electronics.
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spelling doaj.art-87af7cc5d83843bdba8b00dc7c63d60d2023-11-16T17:47:28ZengMDPI AGPolymers2073-43602023-01-0115357110.3390/polym15030571Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor ApplicationsNujud M. Badawi0Mamta Bhatia1S. Ramesh2K. Ramesh3Mufsir Kuniyil4Mohammed Rafi Shaik5Mujeeb Khan6Baji Shaik7Syed F. Adil8Centre for Ionics, Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Physics, Acharya Narendra Dev College, University of Delhi, Delhi 110019, IndiaCentre for Ionics, Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, MalaysiaCentre for Ionics, Department of Physics, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaDepartment of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaSchool of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of KoreaDepartment of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi ArabiaHydrogel electrolytes for energy storage devices have made great progress, yet they present a major challenge in the assembly of flexible supercapacitors with high ionic conductivity and self-healing properties. Herein, a smart self-healing hydrogel electrolyte based on alginate/poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (alginate/PEDOT:PSS)(A/P:P) was prepared, wherein H<sub>2</sub>SO<sub>4</sub> was employed as a polymeric initiator, as well as a source of ions. PEDOT:PSS is a semi-interpenetrating network (IPN) that has been used in recent studies to exhibit quick self-healing properties with the H₂SO₃ additive, which further improves its mechanical strength and self-healing performance. A moderate amount of PEDOT:PSS in the hydrogel (5 mL) was found to significantly improve the ionic conductivity compared to the pure hydrogel of alginate. Interestingly, the alginate/PEDOT:PSS composite hydrogel exhibited an excellent ability to self-heal and repair its original composition within 10 min of cutting. Furthermore, the graphite conductive substrate-based supercapacitor with the alginate/PEDOT:PSS hydrogel electrolyte provided a high specific capacitance of 356 F g<sup>−1</sup> at 100 mV/s g<sup>−1</sup>. The results demonstrate that the A/P:P ratio with 5 mL PEDOT:PSS had a base sheet resistance of 0.9 Ω/square. This work provides a new strategy for designing flexible self-healing hydrogels for application in smart wearable electronics.https://www.mdpi.com/2073-4360/15/3/571flexibleself healingsmart hydrogelelectrolytesupercapacitor
spellingShingle Nujud M. Badawi
Mamta Bhatia
S. Ramesh
K. Ramesh
Mufsir Kuniyil
Mohammed Rafi Shaik
Mujeeb Khan
Baji Shaik
Syed F. Adil
Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications
Polymers
flexible
self healing
smart hydrogel
electrolyte
supercapacitor
title Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications
title_full Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications
title_fullStr Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications
title_full_unstemmed Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications
title_short Self-Healing, Flexible and Smart 3D Hydrogel Electrolytes Based on Alginate/PEDOT:PSS for Supercapacitor Applications
title_sort self healing flexible and smart 3d hydrogel electrolytes based on alginate pedot pss for supercapacitor applications
topic flexible
self healing
smart hydrogel
electrolyte
supercapacitor
url https://www.mdpi.com/2073-4360/15/3/571
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