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Preparation of iron oxides using ammonium iron citrate precursor: Thin films and nanoparticles |
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| Authors: | Sangmoon Park |
| Affiliation: | aDepartment of Engineering in Energy and Applied Chemistry, Silla University, Busan 617-736, Republic of Korea1;bUSC NanoCenter, Department of Chemistry and Biochemistry, University of South Carolina, 1212 Greene Street, Columbia, SC 29208-0001, USA2;cCondense Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973-5000, USA2 |
| Abstract: | Ammonium iron citrate (C6H8O7·nFe·nH3N) was used as a precursor for preparing both iron-oxide thin films and nanoparticles. Thin films of iron oxides were fabricated on silicon (111) substrate using a successive-ionic-layer-adsorption-and-reaction (SILAR) method and subsequent hydrothermal or furnace annealing. Atomic force microscopy (AFM) images of the iron-oxide films obtained under various annealing conditions show the changes of the micro-scale surface structures and the magnetic properties. Homogenous Fe3O4 nanoparticles around 4 nm in diameter were synthesized by hydrothermal reduction method at low temperature and investigated using transmission electron microscopy (TEM). |
| Keywords: | Iron oxides Thin films Nanoparticles Transmission electron microscopy Magnetic measurements |
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