Synthesis and Characterization of Magnetite/Carbon Nanocomposite Thin Films for Electrochemical Applications

J Mater Sci Technol ›› 2011, Vol. 27 ›› Issue (10): 873-878.

• Thin Film and Coatings • Previous Articles Next Articles

Synthesis and Characterization of Magnetite/Carbon Nanocomposite Thin Films for Electrochemical Applications

Suh Cem Pang, Wai Hwa Khoh, Suk Fun Chin

Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia

Received:2011-01-18 Revised:2011-07-12 Online:2011-10-31 Published:2011-10-24
Supported by:
Universiti Malaysia Sarawak (UNIMAS) through the award of a special fundamental research grant 01(K03)/557/2005(56)

Abstract

Abstract: Stable colloidal suspension of magnetite/starch nanocomposite was prepared by a facile and aqueous-based chemical precipitation method. Magnetite/carbon nanocomposite thin films were subsequently formed upon carbonization of the starch component by heat treatment under controlled conditions. The initial content of native sago starch as the carbon source was found to affect the microstructure and electrochemical properties
of the resulted magnetite/carbon nanocomposite thin films. A specific capacitance of 124 F/g was achieved for the magnetite/carbon nanocomposite thin films as compared to that of 82 F/g for pure magnetite thin films in Na₂SO₄ aqueous electrolyte.

Key words: Magnetite, Magnetite/carbon nanocomposite, Native sago starch, Specific capacitance

Suh Cem Pang, Wai Hwa Khoh, Suk Fun Chin. Synthesis and Characterization of Magnetite/Carbon Nanocomposite Thin Films for Electrochemical Applications[J]. J Mater Sci Technol, 2011, 27(10): 873-878.

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Synthesis and Characterization of Magnetite/Carbon Nanocomposite Thin Films for Electrochemical Applications

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