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Synthesis of antimony oxide nano-particles by vapor transport and condensation

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Abstract

This paper reports the synthesis of Sb2O3 nano-particles by vapor transport and condensation of metallic antimony in oxidizing environment. Granular antimony inside an alumina crucible is placed in the middle of a tube furnace at 550 °C with air flow rate of 400 mL/min. Al foil, glass and Si-wafer, which are used as substrates, are placed downstream of the gas flow at a temperature of about 250 °C for the deposition of antimony oxide. The deposited antimony oxides on the substrates and the oxidized granular antimony in the alumina crucible are examined with field emission scanning electron microscopy, X-ray diffractometer and transmission electron microscopy (TEM). The deposited antimony oxide consists of Sb2O3 nano-particles, while the oxidized granular antimony in the crucible consists of SbO2. The mechanism of the formation of Sb2O3 nano-particles is analyzed based on oxidation reaction thermodynamics and kinetics.

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Acknowledgements

This work was funded by Research Grant Council of Hong Kong (B-Q747, A-PG59), Research grant from PolyU G-U344, PolyU 5312/03E and PolyU 5236/03E.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

    C. H. Xu & S. Q. Shi

  2. Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

    C. Surya & C. H. Woo

Authors
  1. C. H. Xu
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  2. S. Q. Shi
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  3. C. Surya
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  4. C. H. Woo
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Correspondence to C. H. Xu.

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Xu, C.H., Shi, S.Q., Surya, C. et al. Synthesis of antimony oxide nano-particles by vapor transport and condensation. J Mater Sci 42, 9855–9858 (2007). https://doi.org/10.1007/s10853-007-1799-z

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  • DOI: https://doi.org/10.1007/s10853-007-1799-z

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