Nanoparticulate magnetite thin films as electrode materials for the fabrication of electrochemical capacitors

Pang, S.C. and Khoh, Wai Hwa and Chin, S.F. (2010) Nanoparticulate magnetite thin films as electrode materials for the fabrication of electrochemical capacitors. Journal of Materials Science, 45 (20). pp. 5598-5604. ISSN 1573-4803

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Abstract

Magnetite nanoparticles in stable colloidal suspension were prepared by the co-precipitation method. Nanoparticulate magnetite thin films on supporting stainless steel plates were prepared by drop-coating followed by heat treatment under controlled conditions. The effects of calcination temperature and atmosphere on the microstructure and electrochemical properties of nanoparticulate magnetite thin films were investigated. Nanoparticulate magnetite thin films prepared under optimized conditions exhibited a specific capacitance value of 82 F/g in mild aqueous 1.0 M Na2SO4 solution. Due to their high charge capacity, good cycling reversibility, and stability in a mild aqueous electrolyte, nanoparticulate magnetite thin films appear to be promising electrode materials for the fabrication of electrochemical capacitors.

Item Type: Article
Uncontrolled Keywords: Nanoparticulate magnetite, electrochemical capacitors, Magnetite nanoparticles, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, research, Universiti Malaysia Sarawak
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 03 Dec 2015 06:54
Last Modified: 03 Dec 2015 06:54
URI: http://ir.unimas.my/id/eprint/9890

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