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Journal of Materials Science

, Volume 45, Issue 1, pp 34–38 | Cite as

A novel chemical reduction route toward fabrication of Fe3O4 octahedrons and Fe tubes

  • DongEn ZhangEmail author
  • Wei Wu
  • ShanZhong Li
  • XiaoBo Zhang
  • GuiQuan Han
  • Ailing Ying
  • JunYan Gong
  • ZhiWei Tong
Article

Abstract

Novel Fe3O4 octahedrons and Fe microtubes were successfully prepared in different alkaline concentration solutions by the reduction of hematite (α-Fe2O3) with hydrazine hydrate. The as-prepared powders were characterized in detail by conventional techniques such as X-ray diffraction and field emission scanning electron microscopy. The role of alkaline concentration during the reaction process is discussed in detail. Compared to the reaction in a water system, the reaction in ethanol required less sodium hydroxide and smaller particles were obtained. In addition, the magnetic properties of the samples were characterized using a vibrating sample magnetometer.

Keywords

Magnetite Hematite Hydrazine Hydrate Shape Anisotropy Magnetic Refrigeration 

Notes

Acknowledgements

This work was supported by a Grant-in-aid for Scientific Research from the Japan Society for the Promotion of Science (JSPS), the CREST program of the Japan Science and Technology Agency (JST), the National Natural Science Foundation of China (No. 50873042), and the Scientific Research Program of the HuaiHai Institute of Technology (KQ08023, Z08018). We are grateful to the young and middle-aged academic leaders of the “Blue and Green Blue Project” of the universities and colleges in Jiangsu Province. We are also grateful to the University of Science & Technology of China for assistance in XRD and SEM measurements.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • DongEn Zhang
    • 1
    • 3
    Email author
  • Wei Wu
    • 2
  • ShanZhong Li
    • 1
  • XiaoBo Zhang
    • 1
  • GuiQuan Han
    • 1
  • Ailing Ying
    • 1
  • JunYan Gong
    • 1
  • ZhiWei Tong
    • 1
    • 3
  1. 1.Department of Chemical EngineeringHuaiHai Institute of TechnologyLianyungangPeople’s Republic of China
  2. 2.Department of Electronics EngineeringSoutheast UniversityNanjingPeople’s Republic of China
  3. 3.SORST, Japan Science and Technology Agency (JST)Machida, TokyoJapan

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