Nano Research

, Volume 2, Issue 5, pp 373–379

Simple and rapid synthesis of α-Fe2O3 nanowires under ambient conditions

Authors

    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
  • Simas Rackauskas
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
  • Hua Jiang
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
  • Ying Tian
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
  • Prasantha Reddy Mudimela
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
  • Sergey D. Shandakov
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
    • Laboratory of Carbon NanoMaterials, Department of PhysicsKemerovo State University
  • Larisa I. Nasibulina
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
  • Sainio Jani
    • Laboratory of PhysicsHelsinki University of Technology
    • NanoMaterials Group, Department of Applied Physics and Center for New MaterialsHelsinki University of Technology
    • VTT Biotechnology
Open AccessResearch Article

DOI: 10.1007/s12274-009-9036-5

Cite this article as:
Nasibulin, A.G., Rackauskas, S., Jiang, H. et al. Nano Res. (2009) 2: 373. doi:10.1007/s12274-009-9036-5

Abstract

We propose a simple method for the efficient and rapid synthesis of one-dimensional hematite (α-Fe2O3) nanostructures based on electrical resistive heating of iron wire under ambient conditions. Typically, 1–5 μm long α-Fe2O3 nanowires were synthesized on a time scale of seconds at temperatures of around 700 ° ⊂. The morphology, structure, and mechanism of formation of the nanowires were studied by scanning and transmission electron microscopies, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and Raman techniques. A nanowire growth mechanism based on diffusion of iron ions to the surface through grain boundaries and to the growing wire tip through stacking fault defects and due to surface diffusion is proposed.

https://static-content.springer.com/image/art%3A10.1007%2Fs12274-009-9036-5/MediaObjects/12274_2009_9036_Fig1_HTML.jpg

Keywords

Fe2O3hematitemechanismnanowiresynthesis Address
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Supplementary material

12274_2009_9036_MOESM1_ESM.pdf (870 kb)
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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2009