Green polymer electrolyte and activated charcoal-based supercapacitor for energy harvesting application: Electrochemical characteristics

Aziz, Shujahadeen B. and Hamsan, Muhamad H. and Abdulwahid, Rebar T. and Halim, Norhana Abdul and Hassan, Jamal and Abdulrahman, Ahmed F. and Al-Saeedi, Sameerah I. and Hadi, Jihad M. and Kadir, Mohd F. Z. and Hamad, Samir M. and Saeed, Salah R. (2024) Green polymer electrolyte and activated charcoal-based supercapacitor for energy harvesting application: Electrochemical characteristics. Green Processing and Synthesis, 13 (1). ISSN 2191-9542, DOI https://doi.org/10.1515/gps-2023-0109.

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Abstract

The aim of this study is to address the growing concern about microplastics in the ocean and their potential harm to human health through ingestion. The MPs issue is largely a result of the increasing demand for electronic devices and their components. To tackle this challenge, the research aimed to develop a green polymer electrolyte that used glycerol as a plasticizing agent to improve ionic conductivity. The polymer host included chitosan and polyvinyl alcohol and was composed of sodium acetate. To evaluate the performance of the polymer electrolyte, various analytical techniques were used, including impedance and electrochemical studies. The ionic conductivity of 7.56 x 10(-5) S center dot cm(-1) was recorded. The dielectric property study confirmed the ionic conduction process in the system and revealed the existence of non-Debye type relaxation, as indicated by asymmetric peaks of tan delta spectra. The alternating conductivity exhibits three distinguished regions. The polymer electrolyte was discovered to be electrochemically stable up to 2.33 V and capable of storing energy as a non-Faradaic electrochemical double-layer capacitor (EDLC). The cyclic voltammetry pattern is a leaf like shape. The EDLC was able to be charged and discharged up to 1 V, and it showed cyclability and could be used in low-voltage applications.

Item Type: Article
Funders: Ministry of Higher Education and Scientific Research-Kurdish National Research Council (KNRC), Kurdistan Regional Government, University of Sulaimani, University of Human Development - Khalifa University fund [CIRA-2020-051], PNURSP2023R58
Uncontrolled Keywords: green electrolyte; non-toxic salt; impedance study; dielectric properties; CV and GCD study; EDLC
Subjects: Q Science > QC Physics
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 11 Jun 2024 08:02
Last Modified: 11 Jun 2024 08:02
URI: http://eprints.um.edu.my/id/eprint/44162

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