Synthesis of Single Crystalline Hematite Polyhedral Nanorods Via a Facile Hydrothermal Process

Single‐crystalline α‐Fe2O3 nanorods with a polyhedral configuration have been successfully synthesized via a facile hydrothermal process at 180°C. X‐ray powder diffraction, transmission electron microscopy observations, field emission scanning electron microscopy, and selected area electron diffract...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2007-04, Vol.90 (4), p.1315-1318
Main Authors: Jia, Baoping, Gao, Lian, Sun, Jing
Format: Article
Language:English
Subjects:
Ceramics
Cross-disciplinary physics: materials science
rheology
Crystal structure
Diffraction
Exact sciences and technology
Hematite
Materials science
Morphology
Nanocrystalline materials
Nanorods
Nanoscale materials and structures: fabrication and characterization
Nanotechnology
Physics
Precursors
Scanning electron microscopy
Transmission electron microscopy
X-rays
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Summary:Single‐crystalline α‐Fe2O3 nanorods with a polyhedral configuration have been successfully synthesized via a facile hydrothermal process at 180°C. X‐ray powder diffraction, transmission electron microscopy observations, field emission scanning electron microscopy, and selected area electron diffraction patterns were used to characterize the as‐synthesized samples. The result reveals that goethite nanorods were first generated and then transformed into hematite via dehydration in the successive hydrothermal treatment, in which the α‐Fe2O3 inherited the rod‐like morphology of the goethite precursor. The effect of surfactant and treatment time on the phase and morphology of the final products has been studied, and a possible growth mechanism is proposed.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2007.01523.x