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Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique

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)

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: Sol-Gel, Cobalt Oxide/Silica, Nanocomposites, Electrical Conductivity
Subjects: Q Science > QD Chemistry
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 25 Aug 2016 04:18
Last Modified: 25 Aug 2016 04:18
URI: http://umpir.ump.edu.my/id/eprint/14170
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