Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt
This work presents the fabrication of polymer electrolyte membranes (PEMs) that are made of polyvinyl alcohol-methylcellulose (PVA-MC) doped with various amounts of ammonium iodide (NH<sub>4</sub>I). The structural and electrical properties of the polymer blend electrolyte were performed...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/12/3/284 |
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| author | Muaffaq M. Nofal Shujahadeen B. Aziz Mohamad A. Brza Sozan N. Abdullah Elham M. A. Dannoun Jihad M. Hadi Ary R. Murad Sameerah I. Al-Saeedi Mohd F. Z. Kadir |
| author_facet | Muaffaq M. Nofal Shujahadeen B. Aziz Mohamad A. Brza Sozan N. Abdullah Elham M. A. Dannoun Jihad M. Hadi Ary R. Murad Sameerah I. Al-Saeedi Mohd F. Z. Kadir |
| author_sort | Muaffaq M. Nofal |
| collection | DOAJ |
| description | This work presents the fabrication of polymer electrolyte membranes (PEMs) that are made of polyvinyl alcohol-methylcellulose (PVA-MC) doped with various amounts of ammonium iodide (NH<sub>4</sub>I). The structural and electrical properties of the polymer blend electrolyte were performed via the acquisition of Fourier Transform Infrared (FTIR) and electrical impedance spectroscopy (EIS), respectively. The interaction among the components of the electrolyte was confirmed via the FTIR approach. Electrical impedance spectroscopy (EIS) showed that the whole conductivity of complexes of PVA-MC was increased beyond the addition of NH<sub>4</sub>I. The application of EEC modeling on experimental data of EIS was helpful to calculate the ion transport parameters and detect the circuit elements of the films. The sample containing 40 wt.% of NH<sub>4</sub>I salt exhibited maximum ionic conductivity (7.01 × 10<sup>−8</sup>) S cm<sup>−1</sup> at room temperature. The conductivity behaviors were further emphasized from the dielectric study. The dielectric constant, ε’ and loss, ε’’ values were recorded at high values within the low-frequency region. The peak appearance of the dielectric relaxation analysis verified the non-Debye type of relaxation mechanism was clarified via the peak appearance of the dielectric relaxation. For further confirmation, the transference number measurement (TNM) of the PVA-MC-NH<sub>4</sub>I electrolyte was analyzed in which ions were primarily entities for the charge transfer process. The linear sweep voltammetry (LSV) shows a relatively electrochemically stable electrolyte where the voltage was swept linearly up to 1.6 V. Finally, the sample with maximum conductivity, ion dominance of <i>t<sub>ion</sub></i> and relatively wide breakdown voltage were found to be 0.88 and 1.6 V, respectively. As the ions are the majority charge carrier, this polymer electrolyte could be considered as a promising candidate to be used in electrochemical energy storage devices for example electrochemical double-layer capacitor (EDLC) device. |
| first_indexed | 2024-03-09T13:22:33Z |
| format | Article |
| id | doaj.art-92168b3c418740fd844f1c03f1b1afcb |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-09T13:22:33Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-92168b3c418740fd844f1c03f1b1afcb2023-11-30T21:28:15ZengMDPI AGMembranes2077-03752022-02-0112328410.3390/membranes12030284Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I SaltMuaffaq M. Nofal0Shujahadeen B. Aziz1Mohamad A. Brza2Sozan N. Abdullah3Elham M. A. Dannoun4Jihad M. Hadi5Ary R. Murad6Sameerah I. Al-Saeedi7Mohd F. Z. Kadir8Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi ArabiaHameed Majid Advanced Polymeric Materials Research Lab., Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, IraqMedical Physics Department, College of Medicals & Applied Science, Charmo University, Sulaimani 46023, IraqDepartment of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, IraqGeneral Science Department, Woman Campus, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi ArabiaDepartment of Medical Laboratory of Science, College of Health Sciences, University of Human Development, Sulaimani 46001, IraqDepartment of Pharmaceutical Chemistry, College of Medical and Applied Sciences, Charmo University, Sulaimani 46023, IraqDepartment of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi ArabiaCentre for Foundation Studies in Science, University of Malaya, Kuala Lumpur 50603, MalaysiaThis work presents the fabrication of polymer electrolyte membranes (PEMs) that are made of polyvinyl alcohol-methylcellulose (PVA-MC) doped with various amounts of ammonium iodide (NH<sub>4</sub>I). The structural and electrical properties of the polymer blend electrolyte were performed via the acquisition of Fourier Transform Infrared (FTIR) and electrical impedance spectroscopy (EIS), respectively. The interaction among the components of the electrolyte was confirmed via the FTIR approach. Electrical impedance spectroscopy (EIS) showed that the whole conductivity of complexes of PVA-MC was increased beyond the addition of NH<sub>4</sub>I. The application of EEC modeling on experimental data of EIS was helpful to calculate the ion transport parameters and detect the circuit elements of the films. The sample containing 40 wt.% of NH<sub>4</sub>I salt exhibited maximum ionic conductivity (7.01 × 10<sup>−8</sup>) S cm<sup>−1</sup> at room temperature. The conductivity behaviors were further emphasized from the dielectric study. The dielectric constant, ε’ and loss, ε’’ values were recorded at high values within the low-frequency region. The peak appearance of the dielectric relaxation analysis verified the non-Debye type of relaxation mechanism was clarified via the peak appearance of the dielectric relaxation. For further confirmation, the transference number measurement (TNM) of the PVA-MC-NH<sub>4</sub>I electrolyte was analyzed in which ions were primarily entities for the charge transfer process. The linear sweep voltammetry (LSV) shows a relatively electrochemically stable electrolyte where the voltage was swept linearly up to 1.6 V. Finally, the sample with maximum conductivity, ion dominance of <i>t<sub>ion</sub></i> and relatively wide breakdown voltage were found to be 0.88 and 1.6 V, respectively. As the ions are the majority charge carrier, this polymer electrolyte could be considered as a promising candidate to be used in electrochemical energy storage devices for example electrochemical double-layer capacitor (EDLC) device.https://www.mdpi.com/2077-0375/12/3/284polymer electrolyteFTIRcircuit modelingTNM and LSVimpedancedielectric properties |
| spellingShingle | Muaffaq M. Nofal Shujahadeen B. Aziz Mohamad A. Brza Sozan N. Abdullah Elham M. A. Dannoun Jihad M. Hadi Ary R. Murad Sameerah I. Al-Saeedi Mohd F. Z. Kadir Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt Membranes polymer electrolyte FTIR circuit modeling TNM and LSV impedance dielectric properties |
| title | Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt |
| title_full | Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt |
| title_fullStr | Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt |
| title_full_unstemmed | Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt |
| title_short | Studies of Circuit Design, Structural, Relaxation and Potential Stability of Polymer Blend Electrolyte Membranes Based on PVA:MC Impregnated with NH<sub>4</sub>I Salt |
| title_sort | studies of circuit design structural relaxation and potential stability of polymer blend electrolyte membranes based on pva mc impregnated with nh sub 4 sub i salt |
| topic | polymer electrolyte FTIR circuit modeling TNM and LSV impedance dielectric properties |
| url | https://www.mdpi.com/2077-0375/12/3/284 |
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