Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte
Chitosan-NH4I and chitosan-NH4I-EC films have been prepared by solution cast technique. The sample containing 45 wt% ammonium iodide (NH4I) exhibited the highest room temperature conductivity of 3.7.10(-7) S cm(-1). The conductivity of the sample increased to 7.6 x 10(-6) S cm(-1) when 40wt% ethylen...
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| 格式: | 文件 |
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Elsevier
2009
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| _version_ | 1825719401681256448 |
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| author | Majid, Siti Rohana Arof, Abdul Kariem Buraidah, M.H. Teo, L.P. |
| author_facet | Majid, Siti Rohana Arof, Abdul Kariem Buraidah, M.H. Teo, L.P. |
| author_sort | Majid, Siti Rohana |
| collection | UM |
| description | Chitosan-NH4I and chitosan-NH4I-EC films have been prepared by solution cast technique. The sample containing 45 wt% ammonium iodide (NH4I) exhibited the highest room temperature conductivity of 3.7.10(-7) S cm(-1). The conductivity of the sample increased to 7.6 x 10(-6) S cm(-1) when 40wt% ethylene carbonate (EC) was added to the 55 wt% chitosan-45 wt% NH4I sample. The conductivity-temperature relationship is Arrhenian. From dielectric loss variation with frequency, the power law exponent was obtained. The temperature dependence of the power law exponent for chitosan-NH4I system follows the correlated barrier hopping (CBH) model while conduction mechanism of the plasticized system can be represented by the small polaron hopping (SPH) model. (C) 2009 Elsevier B.V. All rights reserved. |
| first_indexed | 2024-03-06T05:19:10Z |
| format | Article |
| id | um.eprints-7634 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:19:10Z |
| publishDate | 2009 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-76342019-08-27T01:23:41Z http://eprints.um.edu.my/7634/ Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte Majid, Siti Rohana Arof, Abdul Kariem Buraidah, M.H. Teo, L.P. QC Physics Chitosan-NH4I and chitosan-NH4I-EC films have been prepared by solution cast technique. The sample containing 45 wt% ammonium iodide (NH4I) exhibited the highest room temperature conductivity of 3.7.10(-7) S cm(-1). The conductivity of the sample increased to 7.6 x 10(-6) S cm(-1) when 40wt% ethylene carbonate (EC) was added to the 55 wt% chitosan-45 wt% NH4I sample. The conductivity-temperature relationship is Arrhenian. From dielectric loss variation with frequency, the power law exponent was obtained. The temperature dependence of the power law exponent for chitosan-NH4I system follows the correlated barrier hopping (CBH) model while conduction mechanism of the plasticized system can be represented by the small polaron hopping (SPH) model. (C) 2009 Elsevier B.V. All rights reserved. Elsevier 2009 Article PeerReviewed Majid, Siti Rohana and Arof, Abdul Kariem and Buraidah, M.H. and Teo, L.P. (2009) Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte. Physica B: Condensed Matter, 404 (8-11). pp. 1373-1379. ISSN 0921-4526, DOI https://doi.org/10.1016/j.physb.2008.12.027 <https://doi.org/10.1016/j.physb.2008.12.027>. https://doi.org/10.1016/j.physb.2008.12.027 doi:10.1016/j.physb.2008.12.027 |
| spellingShingle | QC Physics Majid, Siti Rohana Arof, Abdul Kariem Buraidah, M.H. Teo, L.P. Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte |
| title | Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte |
| title_full | Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte |
| title_fullStr | Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte |
| title_full_unstemmed | Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte |
| title_short | Ionic conductivity by correlated barrier hopping in NH4I doped chitosan solid electrolyte |
| title_sort | ionic conductivity by correlated barrier hopping in nh4i doped chitosan solid electrolyte |
| topic | QC Physics |
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