Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique
This work is an extension of our previous studies on cobalt oxide nanoparticles impeded in a silica matrix. Here we study the preparation and characterization of high cobalt content materials (60-90 wt%). In addition, the DC electrical conductivity of the prepared materials in a wide temperature ran...
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| Language: | English |
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Science Publications
2016
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| Online Access: | http://umpir.ump.edu.my/id/eprint/14170/ http://umpir.ump.edu.my/id/eprint/14170/1/16-Electrical%20Properties%20of%20Cobalt%20Oxide-Silica%20Nanocomposites%20%20Obtained%20by%20Sol-Gel%20Technique.pdf |
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| author | Ali, Gomaa A. M. Fouad, Osama A. Makhlouf, Salah A. |
| author_facet | Ali, Gomaa A. M. Fouad, Osama A. Makhlouf, Salah A. |
| author_sort | Ali, Gomaa A. M. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This work is an extension of our previous studies on cobalt oxide nanoparticles impeded in a silica matrix. Here we study the preparation and characterization of high cobalt content materials (60-90 wt%). In addition, the DC electrical conductivity of the prepared materials in a wide temperature range (350-673 K) was measured and discussed. The activation energy has been obtained according to Mott’s Small-Polaron Hopping (SPH) and Mott’s and Greaves Variable Range Hopping (VRH) models. |
| first_indexed | 2025-11-15T01:57:01Z |
| format | Article |
| id | ump-14170 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:57:01Z |
| publishDate | 2016 |
| publisher | Science Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-141702016-08-25T04:18:56Z http://umpir.ump.edu.my/id/eprint/14170/ Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique Ali, Gomaa A. M. Fouad, Osama A. Makhlouf, Salah A. QD Chemistry This work is an extension of our previous studies on cobalt oxide nanoparticles impeded in a silica matrix. Here we study the preparation and characterization of high cobalt content materials (60-90 wt%). In addition, the DC electrical conductivity of the prepared materials in a wide temperature range (350-673 K) was measured and discussed. The activation energy has been obtained according to Mott’s Small-Polaron Hopping (SPH) and Mott’s and Greaves Variable Range Hopping (VRH) models. Science Publications 2016 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/14170/1/16-Electrical%20Properties%20of%20Cobalt%20Oxide-Silica%20Nanocomposites%20%20Obtained%20by%20Sol-Gel%20Technique.pdf Ali, Gomaa A. M. and Fouad, Osama A. and Makhlouf, Salah A. (2016) Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique. American Journal of Engineering and Applied Sciences, 9 (1). pp. 12-16. ISSN 1941-7020 (Print); 1941-7039 (Online). (Published) http://dx.doi.org/10.3844/ajeassp.2016.12.16 DOI: 10.3844/ajeassp.2016.12.16 |
| spellingShingle | QD Chemistry Ali, Gomaa A. M. Fouad, Osama A. Makhlouf, Salah A. Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique |
| title | Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique |
| title_full | Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique |
| title_fullStr | Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique |
| title_full_unstemmed | Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique |
| title_short | Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique |
| title_sort | electrical properties of cobalt oxide/silica nanocomposites obtained by sol-gel technique |
| topic | QD Chemistry |
| url | http://umpir.ump.edu.my/id/eprint/14170/ http://umpir.ump.edu.my/id/eprint/14170/ http://umpir.ump.edu.my/id/eprint/14170/ http://umpir.ump.edu.my/id/eprint/14170/1/16-Electrical%20Properties%20of%20Cobalt%20Oxide-Silica%20Nanocomposites%20%20Obtained%20by%20Sol-Gel%20Technique.pdf |