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EFFECT OF PRE-ANNEALING TEMPERATURE ON THE GROWTH OF ALIGNED α-Fe2O3 NANOWIRES VIA A TWO-STEP THERMAL OXIDATION

Author

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  • NORHANA MOHAMED RASHID

    (Department of Frontier Materials, Nagoya Institute of Technology, Nagoya 466-8555, Japan†Department of Renewable Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru, Johor 81310, Malaysia)

  • NAOKI KISHI

    (Department of Frontier Materials, Nagoya Institute of Technology, Nagoya 466-8555, Japan)

  • TETSUO SOGA

    (Department of Frontier Materials, Nagoya Institute of Technology, Nagoya 466-8555, Japan)

Abstract

Pre-annealing as part of a two-step thermal oxidation process has a significant effect on the growth of hematite (α-Fe2O3) nanowires on Fe foil. High-density aligned nanowires were obtained on iron foils pre-annealed at 300∘C under a dry air flow for 30min. The X-ray diffraction (XRD) patterns indicate that the nanowires are transformed from the small α-Fe2O3 grains and uniquely grow in the (110) direction. The formation of a high-density of small grains by pre-annealing improved the alignment and density of the α-Fe2O3 nanowires.

Suggested Citation

  • Norhana Mohamed Rashid & Naoki Kishi & Tetsuo Soga, 2016. "EFFECT OF PRE-ANNEALING TEMPERATURE ON THE GROWTH OF ALIGNED α-Fe2O3 NANOWIRES VIA A TWO-STEP THERMAL OXIDATION," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 23(04), pages 1-6, August.
    • Handle: RePEc:wsi:srlxxx:v:23:y:2016:i:04:n:s0218625x1650027x
    DOI: 10.1142/S0218625X1650027X
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