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Effect of pre-annealing temperature on the growth of aligned a -Fe2O3 nanowires via a two-step thermal oxidation

Rashid, N. M. and Kishi, N. and Soga, T. (2016) Effect of pre-annealing temperature on the growth of aligned a -Fe2O3 nanowires via a two-step thermal oxidation. Surface Review and Letters, 23 (4). ISSN 0218-625X

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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.

Item Type:Article
Uncontrolled Keywords:Annealing, Iron oxides, Oxidation, X ray diffraction, Dry air flow, Iron foils, Preannealing, Small grains, Thermal oxidation, Thermal oxidation process, Nanowires
Subjects:T Technology > TP Chemical technology
Divisions:Petroleum and Renewable Energy Engineering
ID Code:72241
Deposited By: Fazli Masari
Deposited On:21 Nov 2017 03:28
Last Modified:21 Nov 2017 03:28

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