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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Synthesis of tungsten oxide nanostructures by laser pyrolysis
International Journal of Nanoparticles, Volume 1, No. 3, Year 2008
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Description
Since the proposal to synthesise materials by laser assisted pyrolysis in the 1970s, and its practical realisation in 1982, a number of researchers have used this method in obtaining nano-powders from liquid droplets. This study revisits this technique by introducing a new aspect in that it considers obtaining thin films rather than powders. A full experimental arrangement, including laser optimisation, optical layout and materials processing procedures is described. Synthesis of WO3 nanostructures by this method is reported for the first time, with the mean diameter and length determined to be 51 nm and 6.8 μm, respectively. A possible mechanism for production of such nanostructures is proposed owing to the selective dissociation of the O-C bonds in the tungsten ethoxide precursor liquid which resonate with the 10.6 μm emission wavelength of the CO2 laser employed. © 2008 Inderscience Enterprises Ltd.
Authors & Co-Authors
Mwakikunga, Bonex Wakufwa
South Africa, Johannesburg
University of the Witwatersrand
South Africa, Pretoria
The Council for Scientific and Industrial Research
Malawi, Zomba
University of Malawi
Forbes, Andrew B.
South Africa, Pretoria
The Council for Scientific and Industrial Research
South Africa, Durban
University of Kwazulu-natal
Sideras-Haddad, Elias
South Africa, Johannesburg
University of the Witwatersrand
Erasmus, Rudolph M.
South Africa, Johannesburg
University of the Witwatersrand
Katumba, Gift
Zimbabwe, Harare
University of Zimbabwe
South Africa, Pretoria
The Council for Scientific and Industrial Research
Masina, Bathusile Nelisiwe
South Africa, Pretoria
The Council for Scientific and Industrial Research
South Africa, Ulundi
University of Zululand
Statistics
Citations: 15
Authors: 6
Affiliations: 6
Identifiers
Doi:
10.1504/IJNP.2008.020895
ISSN:
17532507
e-ISSN:
17532515
Research Areas
Environmental