Synthesis and characterization of nanostructured magnetite and magnetite/carbon nanocomposite thin films for electrochemical applications

Author

Pang, Suh Cern ; Khoh, Wai Hwa

Author_Institution

Dept. of Chem., Univ. Malaysia Sarawak, Kota Samarahan, Malaysia

fYear

2010

fDate

1-3 Dec. 2010

Firstpage

1

Lastpage

2

Abstract

Stable colloidal suspensions of magnetite and magnetite/starch nanocomposite prepared by the co-precipitation method, and a simple, facile and aqueous-based chemical precipitation method, respectively. 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. Magnetite/carbon nanocomposite thin films were formed from the magnetite/starch nanocomposites after the starch component was carbonized by heat treatment under controlled conditions. The initial content of native sago starch was found to affect the microstructure and electrochemical properties of the resulting magnetite/carbon nanocomposite thin films.

Keywords

calcination; carbon; colloids; electrochemistry; ferrites; iron compounds; magnetic thin films; nanocomposites; nanofabrication; nanoparticles; precipitation (physical chemistry); suspensions; aqueous-based chemical precipitation method; calcination; carbon; co-precipitation method; drop-coating; electrochemical properties; heat treatment; microstructure; nanocomposite; nanoparticulate magnetite thin films; nanostructured magnetite; native sago starch; stable colloidal suspensions;

fLanguage

English

Publisher

ieee

Conference_Titel

Enabling Science and Nanotechnology (ESciNano), 2010 International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-8853-7

Type

conf

DOI

10.1109/ESCINANO.2010.5700947

Filename

5700947