Preparation of monodisperse iron oxide nanoparticles via the synthesis and decomposition of iron fatty acid complexes

Chih Jung Chen, Hsin Yi Lai, Chee Cheng Lin, Jiun Shen Wang, Ray Kuang Chiang

研究成果: Article同行評審

63 引文 斯高帕斯(Scopus)

摘要

Iron fatty acid complexes (IFACs) are prepared via the dissolution of porous hematite powder in hot unsaturated fatty acid. The IFACs are then decomposed in five different organic solvents under reflux conditions in the presence of the respective fatty acid. The XRD analysis results indicate that the resulting NPs comprise a mixture of wustite, magnetite, and maghemite phases. The solvents with a higher boiling point prompt the formation of larger NPs containing wustite as the major component, while those with a lower boiling point produce smaller NPs with maghemite as the major component. In addition, it is shown that unstable NPs with a mixed wustite-magnetite composition can be oxidized to pure maghemite by extending the reaction time or using an oxidizing agent.

原文English
頁(從 - 到)1343-1350
頁數8
期刊Nanoscale Research Letters
4
發行號11
DOIs
出版狀態Published - 2009 十月

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學

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