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Synthesis and characterization of Gallium oxide nanostructures via a soft-chemistry route

Frost, Ray L., Zhao, Yanyan, & Martens, Wayde N. (2007) Synthesis and characterization of Gallium oxide nanostructures via a soft-chemistry route. Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, 111(44), pp. 16290-16299.

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Abstract

Nano to micro sized gallium oxide was prepared with and without surfactant via a hydrothermal route at low temperature through different synthesis procedures. Rod-like GaOOH crystals with average length of ~2.5 μm and width of 1.5 μm were prepared when the initial molar ratio of Ga to OH was 1:3. β-Ga2O3 were derived from GaOOH by calcination at 900 degrees Celsius and the initial morphology retained. γ-Ga2O3 nanotubes up to 65 nm in length, with internal and external diameter of around 0.8 and 3 nm were achieved directly in solution with and without surfactant under hydrothermal treatment condition at 100 degrees Celsius when the initial molar ratio of Ga to OH was 1:5. The combination of X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption, Small Area Electron Diffraction (SAED) and Energy Dispersive X-ray analysis (EDX) were employed to characterize the resulting nano to micro sized structures. Cationic and nonionic surfactants were used in this study. Detailed results are presented.

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ID Code: 10664
Item Type: Journal Article
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.
Keywords: gallium oxide, gallium oxyhydroxide, nanotube, X, ray diffraction, Transmission electron microscopy, surface area
DOI: 10.1021/jp075575y
ISSN: 1932-7455
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Research Centres > Science Research Centre
Copyright Owner: Copyright 2007 American Chemical Society
Deposited On: 12 Nov 2007
Last Modified: 29 Feb 2012 23:36

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