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Issue 10, 2010
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Controlled Gd2O3 nanorods and nanotubes by the annealing of Gd(OH)3 nanorod and nanotube precursors and self-templates produced by a microwave-assisted hydrothermal process

Titipun Thongtem,*a  Anukorn Phuruangrat,bc  Dong Jin Ham,c  Jae Sung Lee*c  and  Somchai Thongtemb 
Author affiliations

* Corresponding authors

a Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
E-mail: ttpthongtem@yahoo.com
Fax: +66-53-892-277
Tel: +66-53-943-341

b Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand

c Eco-friendly Catalysis and Energy Laboratory (NRL), Department of Chemical Engineering, School of Environmental Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang, Republic of Korea
E-mail: jlee@postech.ac.kr
Fax: +82-54-279-5528
Tel: +82-54-279-2266

Abstract

One dimensional Gd(OH)3 nanorods and nanotubes were successfully produced through a microwave-assisted hydrothermal process of Gd(NO3)3 solutions at pH 10, adjusted using 3 M NaOH and NH4OH as buffer solutions. Subsequently, the Gd(OH)3 nanorods and nanotubes, functioned as both the precursors and self-templates, were annealed at 450 °C for 2 h to form the respective Gd2O3 nanorods and nanotubes whilst retaining their shapes. X-Ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED) were used to characterize these Gd(OH)3 and Gd2O3 nanorods and nanotubes, of which the formation mechanisms were also proposed.

Graphical abstract: Controlled Gd2O3 nanorods and nanotubes by the annealing of Gd(OH)3 nanorod and nanotube precursors and self-templates produced by a microwave-assisted hydrothermal process

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Publication details

The article was received on 30 Nov 2009, accepted on 06 Apr 2010 and first published on 29 May 2010


Article type: Paper
DOI: 10.1039/B925097B
Citation: CrystEngComm, 2010,12, 2962-2966
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    Controlled Gd2O3 nanorods and nanotubes by the annealing of Gd(OH)3 nanorod and nanotube precursors and self-templates produced by a microwave-assisted hydrothermal process

    T. Thongtem, A. Phuruangrat, D. J. Ham, J. S. Lee and S. Thongtem, CrystEngComm, 2010, 12, 2962
    DOI: 10.1039/B925097B

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