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Original Articles

Synthesis of α‐Fe2O3 Nanocubes

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Pages 425-429 | Received 02 May 2007, Accepted 04 Mar 2007, Published online: 06 Aug 2007
 

Nanocubes of α‐Fe2O3 were successfully synthesized by aqueous polymer thermolysis method in air. The synthesis of hematite nanoparticles has been carried out using a habit modifier polyvinyl alcohol of different molecular weights. The influence of annealing temperature from 300 to 500°C on structural and thermal properties of α‐Fe2O3 nanoparticles was investigated systematically using X‐ray diffraction and thermogravimetric analysis. The smallest grain size of 12 nm after calcinations was found in presence of PVA of 1,25,000 molecular weight. The binding and microstructural features of polycrystalline samples of iron oxide were studied by FTIR, SEM and TEM. Infrared spectra reveal the formation of α‐Fe2O3 and the removal of organic matter at higher temperatures.

Prajakta R. Patil thanks the funding agency ISRO for the financial support.

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