Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte
Solid biopolymer electrolyte (SBPE) systems based on alginate–polyvinyl alcohol (Al–PVA) doped with varying contents of potassium carbonate (K2CO3) were successfully developed using a solution casting technique. Structural analysis via FTIR and XPS confirmed strong interactions between K+ ions and t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2025
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| Online Access: | https://umpir.ump.edu.my/id/eprint/45212/ |
| _version_ | 1848827355250819072 |
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| author | Nurul Aqilah, Wahab Saadiah, M. A. Nur Aziliana, Muhd Ghazali Aoki, K. Nagao, Yuki N.F., Mazuki Ahmad Salihin, Samsudin |
| author_facet | Nurul Aqilah, Wahab Saadiah, M. A. Nur Aziliana, Muhd Ghazali Aoki, K. Nagao, Yuki N.F., Mazuki Ahmad Salihin, Samsudin |
| author_sort | Nurul Aqilah, Wahab |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Solid biopolymer electrolyte (SBPE) systems based on alginate–polyvinyl alcohol (Al–PVA) doped with varying contents of potassium carbonate (K2CO3) were successfully developed using a solution casting technique. Structural analysis via FTIR and XPS confirmed strong interactions between K+ ions and the functional groups of the biopolymer blend. XRD results revealed reduced crystallinity with salt incorporation, indicating enhanced amorphousness favorable for ion transport. Thermal analysis using TGA and DSC showed improved thermal stability and segmental mobility with increasing K2CO3 content. Impedance spectroscopy indicated a notable drop in bulk resistance with optimal conductivity of 1.31 × 10−5 S cm−1 achieved at 12 wt% K2CO3. Temperature-dependent conductivity obeyed Arrhenius behavior, confirming thermally activated ion conduction. Transport parameters derived using the Arof–Noor model (number of charge carriers, mobility, and diffusion coefficient) exhibited trends consistent with conductivity results. These findings demonstrate the Al–PVA–K2CO3 SBPE system’s potential for energy-related applications requiring sustainable and thermally stable electrolytes. |
| first_indexed | 2025-11-15T03:59:24Z |
| format | Article |
| id | ump-45212 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:59:24Z |
| publishDate | 2025 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-452122025-08-04T01:03:39Z https://umpir.ump.edu.my/id/eprint/45212/ Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte Nurul Aqilah, Wahab Saadiah, M. A. Nur Aziliana, Muhd Ghazali Aoki, K. Nagao, Yuki N.F., Mazuki Ahmad Salihin, Samsudin Q Science (General) QD Chemistry TP Chemical technology Solid biopolymer electrolyte (SBPE) systems based on alginate–polyvinyl alcohol (Al–PVA) doped with varying contents of potassium carbonate (K2CO3) were successfully developed using a solution casting technique. Structural analysis via FTIR and XPS confirmed strong interactions between K+ ions and the functional groups of the biopolymer blend. XRD results revealed reduced crystallinity with salt incorporation, indicating enhanced amorphousness favorable for ion transport. Thermal analysis using TGA and DSC showed improved thermal stability and segmental mobility with increasing K2CO3 content. Impedance spectroscopy indicated a notable drop in bulk resistance with optimal conductivity of 1.31 × 10−5 S cm−1 achieved at 12 wt% K2CO3. Temperature-dependent conductivity obeyed Arrhenius behavior, confirming thermally activated ion conduction. Transport parameters derived using the Arof–Noor model (number of charge carriers, mobility, and diffusion coefficient) exhibited trends consistent with conductivity results. These findings demonstrate the Al–PVA–K2CO3 SBPE system’s potential for energy-related applications requiring sustainable and thermally stable electrolytes. Elsevier 2025 Article PeerReviewed pdf en https://umpir.ump.edu.my/id/eprint/45212/1/1-s2.0-S0921510725006683-main.pdf Nurul Aqilah, Wahab and Saadiah, M. A. and Nur Aziliana, Muhd Ghazali and Aoki, K. and Nagao, Yuki and N.F., Mazuki and Ahmad Salihin, Samsudin (2025) Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte. Materials Science & Engineering: B, 322 (118644). pp. 1-14. ISSN 0921-5107. (Published) https://doi.org/10.1016/j.mseb.2025.118644 https://doi.org/10.1016/j.mseb.2025.118644 https://doi.org/10.1016/j.mseb.2025.118644 |
| spellingShingle | Q Science (General) QD Chemistry TP Chemical technology Nurul Aqilah, Wahab Saadiah, M. A. Nur Aziliana, Muhd Ghazali Aoki, K. Nagao, Yuki N.F., Mazuki Ahmad Salihin, Samsudin Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte |
| title | Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte |
| title_full | Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte |
| title_fullStr | Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte |
| title_full_unstemmed | Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte |
| title_short | Potassium ion coordination and ionic transport in Alginate–PVA polymer electrolyte |
| title_sort | potassium ion coordination and ionic transport in alginate–pva polymer electrolyte |
| topic | Q Science (General) QD Chemistry TP Chemical technology |
| url | https://umpir.ump.edu.my/id/eprint/45212/ https://umpir.ump.edu.my/id/eprint/45212/ https://umpir.ump.edu.my/id/eprint/45212/ |