AVS 50th International Symposium
    Nanometer Structures Tuesday Sessions
       Session NS-TuP

Paper NS-TuP8
Solvothermal Synthesis of Nanocrystalline @gamma@-Fe@sub 2@O@sub 3@ in Toluene

Tuesday, November 4, 2003, 5:30 pm, Room Hall A-C

Session: Poster Session
Presenter: C.-S. Kim, Pukyong National University, Korea
Authors: C.-S. Kim, Pukyong National University, Korea
J.-H. Park, Pukyong National University, Korea
B.K. Moon, Pukyong National University, Korea
H.J. Seo, Pukyong National University, Korea
B.-C. Choi, Pukyong National University, Korea
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The synthesis of @gamma@-Fe@sub 2@O@sub 3@ nanoparticles has been performed in solvothermal route. The nanocrystalline particles were obtained after synthesis using two different temperatures of 130°C and 180°C for 10 hrs in an autoclave, where iron pentacarbonyl is thermally decomposed in toluene solutions in the presence of trimethylamine N-oxide as an oxidant. X-ray diffraction and transmission electron microscopy shows that the product has uniform maghemite structure with average particle size below 30nm. The specific surface area of the @gamma@-Fe@sub 2@O@sub 3@ nanocrystalline powder was investigated using BET surface area analyzer. Influence of synthesis conditions such as synthesis temperature and molar ratio of precursor to solution on the size and size distribution of the product was also discussed.