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    An electron microscopy study of b-FeOOH (akaganeite) nanorods and nanotubes

    20008_downloaded_stream_526.pdf (529.9Kb)
    Access Status
    Open access
    Authors
    Richmond, William
    Cowley, J.
    Parkinson, Gordon
    Saunders, M.
    Date
    2006
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Richmond, William and Cowley, John and Parkinson, Gordon and Saunders, Martin. 2006. An electron microscopy study of b-FeOOH (akaganeite) nanorods and nanotubes. CrystEngComm 8 (1): 36-40.
    Source Title
    CrystEngComm
    DOI
    10.1039/b513423d
    Faculty
    Department of Applied Chemistry
    Division of Engineering, Science and Computing
    Faculty of Science
    Remarks

    This article originally published in the journal:

    CrystEngComm

    URI
    http://hdl.handle.net/20.500.11937/28183
    Collection
    • Curtin Research Publications
    Abstract

    High-resolution TEM images reveal that samples of b-FeOOH (akaganeite) prepared by quenching of a condensed ferrihydrite gel contain a mixture of rod-like particles and tubes. The tubular particles are usually about 10-15 nm in diameter with a central void that is typically 1/3 of the particle diameter. Dark-field STEM images show that the tubular particles are made up of single crystals that extend across the whole tube diameter, but only rarely extend along the whole length of the tube. Both the solid rods and the tubes appear to be based on subunits of approximately 3-4 nm in diameter, and it is proposed that formation of the akaganeite particles, both tubes and rods, results from secondary nucleation of these subunits at sites on particle edges, followed by rapid linear growth along the c-direction of the akaganeite structure.

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