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Infrared and infrared emission spectroscopy of gallium oxide α-GaO(OH) nanostructures

Yang, Jing, Zhao, Yanyan, & Frost, Ray L. (2009) Infrared and infrared emission spectroscopy of gallium oxide α-GaO(OH) nanostructures. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 74(2), pp. 398-403.

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Abstract

Infrared spectroscopy has been used to study nano to micro sized gallium oxyhydroxide α-GaO(OH), prepared using a low temperature hydrothermal route. Rod-like α-GaO(OH) 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 nano and micro-rods were prepared through the calcination of α-GaO(OH) The initial morphology of α-GaO(OH) is retained in the β-Ga2O3 nanorods. The combination of infrared and infrared emission spectroscopy complimented with dynamic thermal analysis were used to characterise the α-GaO(OH) nanotubes and the formation of β-Ga2O3 nanorods. Bands at around 2903 and 2836 cm-1 are assigned to the -OH stretching vibration of α-GaO(OH) nanorods. Infrared bands at around 952 and 1026 cm-1 are assigned to the Ga-OH deformation modes of α-GaO(OH). A significant number of bands are observed in the 620 to 725 cm-1 region and are assigned to GaO stretching vibrations.

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ID Code: 27199
Item Type: Journal Article
Additional URLs:
Keywords: infrared, infrared emission, nanofibres, nanorods, nanomaterials, gallium oxyhydroxide, gallium oxide
DOI: 10.1016/j.saa.2009.06.032
ISSN: 1386-1425
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Colloid and Surface Chemistry (030603)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > School of Physical & Chemical Sciences
Copyright Owner: Copyright 2009 Elsevier
Deposited On: 04 Sep 2009 07:35
Last Modified: 01 Mar 2012 00:07

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