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Hydrothermal synthesis and characterisation of single crystal α-Fe2O3 nanorods

  • T. Almeida
  • Y. Q. Zhu
  • P. D. Brown

Abstract

One-dimensional (1D) nanostructures have attracted extensive attention due to their novel magnetic properties which are greatly dependent on nanorod size and shape [1]. If the particle size decreases toward a critical value it can consist of a single magnetic domain. Further, a 1D magnetic nanostructure can exhibit much higher coercivity than its isotropic counterpart because of the effect of shape anisotropy. Ferromagnetic hematite (α-Fe2O3) is of particular interest because of its low cost, high resistance to corrosion and environmentally friendly properties. Hydrothermal synthesis (HS) is a comparatively simple process for the preparation of 1D iron oxide nanostructures. However, the mechanism of nanorod formation is not clearly understood, thereby preventing the effective control of α-Fe2O3 nanorod size, shape and growth. α-Fe2O3 nanorods offer many opportunities with applications in fields such as drug delivery, gas sensors and magnetic data storage.

Keywords

hydrothermal synthesis α-Fe2O3 β-FeOOH nanorod 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • T. Almeida
    • 1
  • Y. Q. Zhu
    • 1
  • P. D. Brown
    • 1
  1. 1.School of Mechanical, Materials and Manufacturing EngineeringThe University of NottinghamUniversity Park, NottinghamUK

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