The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance
Plasticized magnesium ion conducting polymer blend electrolytes based on chitosan (CS): polyvinyl alcohol (PVA) was synthesized with a casting technique. The source of ions is magnesium triflate Mg(CF<sub>3</sub>SO<sub>3</sub>)<sub>2</sub>, and glycerol was used a...
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doaj-57654e51267f460ab543e4228cb0723f2020-11-25T01:46:33ZengMDPI AGMolecules1420-30492020-10-01254503450310.3390/molecules25194503The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC PerformanceShujahadeen B. Aziz0Mohamad A. Brza1Elham M. A. Dannoun Muhamad H. Hamsan2Jihad M. Hadi3Mohd F. Z. Kadir4Rebar T. Abdulwahid5Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Kurdistan Regional Government-Iraq, Sulaimani 46001, IraqDepartment of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, MalaysiaAssociate Director of General Science Department, Woman Campus, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi ArabiaCollege of Engineering, Tishk International University, Kurdistan Regional Government-Sulaimani, Erbil 46001, IraqCentre for Foundation Studies in Science, University of Malaya, Kuala Lumpur 50603, MalaysiaDepartment of Physics, College of Education, University of Sulaimani, Old Campus, Kurdistan Regional Government-Iraq, Sulaimani, Erbil 46001, IraqPlasticized magnesium ion conducting polymer blend electrolytes based on chitosan (CS): polyvinyl alcohol (PVA) was synthesized with a casting technique. The source of ions is magnesium triflate Mg(CF<sub>3</sub>SO<sub>3</sub>)<sub>2</sub>, and glycerol was used as a plasticizer. The electrical and electrochemical characteristics were examined. The outcome from X-ray diffraction (XRD) examination illustrates that the electrolyte with highest conductivity exhibits the minimum degree of crystallinity. The study of the dielectric relaxation has shown that the peak appearance obeys the non-Debye type of relaxation process. An enhancement in conductivity of ions of the electrolyte system was achieved by insertion of glycerol. The total conductivity is essentially ascribed to ions instead of electrons. The maximum DC ionic conductivity was measured to be 1.016 × 10<sup>−5 </sup>S cm<sup>−1</sup> when 42 wt.% of plasticizer was added. Potential stability of the highest conducting electrolyte was found to be 2.4 V. The cyclic voltammetry (CV) response shows the behavior of the capacitor is non-Faradaic where no redox peaks appear. The shape of the CV response and EDLC specific capacitance are influenced by the scan rate. The specific capacitance values were 7.41 F/g and 32.69 F/g at 100 mV/s and 10 mV/s, respectively. Finally, the electrolyte with maximum conductivity value is obtained and used as electrodes separator in the electrochemical double-layer capacitor (EDLC) applications. The role of lattice energy of magnesium salts in energy storage performance is discussed in detail.https://www.mdpi.com/1420-3049/25/19/4503polymer blendsmagnesium saltimpedancedielectric propertiesLSV and TNMCV study |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shujahadeen B. Aziz Mohamad A. Brza Elham M. A. Dannoun Muhamad H. Hamsan Jihad M. Hadi Mohd F. Z. Kadir Rebar T. Abdulwahid |
spellingShingle |
Shujahadeen B. Aziz Mohamad A. Brza Elham M. A. Dannoun Muhamad H. Hamsan Jihad M. Hadi Mohd F. Z. Kadir Rebar T. Abdulwahid The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance Molecules polymer blends magnesium salt impedance dielectric properties LSV and TNM CV study |
author_facet |
Shujahadeen B. Aziz Mohamad A. Brza Elham M. A. Dannoun Muhamad H. Hamsan Jihad M. Hadi Mohd F. Z. Kadir Rebar T. Abdulwahid |
author_sort |
Shujahadeen B. Aziz |
title |
The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance |
title_short |
The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance |
title_full |
The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance |
title_fullStr |
The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance |
title_full_unstemmed |
The Study of Electrical and Electrochemical Properties of Magnesium Ion Conducting CS: PVA Based Polymer Blend Electrolytes: Role of Lattice Energy of Magnesium Salts on EDLC Performance |
title_sort |
study of electrical and electrochemical properties of magnesium ion conducting cs: pva based polymer blend electrolytes: role of lattice energy of magnesium salts on edlc performance |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2020-10-01 |
description |
Plasticized magnesium ion conducting polymer blend electrolytes based on chitosan (CS): polyvinyl alcohol (PVA) was synthesized with a casting technique. The source of ions is magnesium triflate Mg(CF<sub>3</sub>SO<sub>3</sub>)<sub>2</sub>, and glycerol was used as a plasticizer. The electrical and electrochemical characteristics were examined. The outcome from X-ray diffraction (XRD) examination illustrates that the electrolyte with highest conductivity exhibits the minimum degree of crystallinity. The study of the dielectric relaxation has shown that the peak appearance obeys the non-Debye type of relaxation process. An enhancement in conductivity of ions of the electrolyte system was achieved by insertion of glycerol. The total conductivity is essentially ascribed to ions instead of electrons. The maximum DC ionic conductivity was measured to be 1.016 × 10<sup>−5 </sup>S cm<sup>−1</sup> when 42 wt.% of plasticizer was added. Potential stability of the highest conducting electrolyte was found to be 2.4 V. The cyclic voltammetry (CV) response shows the behavior of the capacitor is non-Faradaic where no redox peaks appear. The shape of the CV response and EDLC specific capacitance are influenced by the scan rate. The specific capacitance values were 7.41 F/g and 32.69 F/g at 100 mV/s and 10 mV/s, respectively. Finally, the electrolyte with maximum conductivity value is obtained and used as electrodes separator in the electrochemical double-layer capacitor (EDLC) applications. The role of lattice energy of magnesium salts in energy storage performance is discussed in detail. |
topic |
polymer blends magnesium salt impedance dielectric properties LSV and TNM CV study |
url |
https://www.mdpi.com/1420-3049/25/19/4503 |
work_keys_str_mv |
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