Govender, MShikwambana, LMwakikunga, Bonex WSideras-Haddad, EErasmus, RMForbes, A2011-03-162011-03-162010-06Govender, M, Shikwambana, L, Mwakikunga, BW et al. 2011. Formation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheres. Nanoscale Research Letters, Vol. 6(166), pp 1-81931-7573http://www.nanoscalereslett.com/content/pdf/1556-276X-6-166.pdfhttp://hdl.handle.net/10204/4913doi: 10.1186/1556-276X-6-166Copyright: 2010 Springer. This is a pre print version of the work. The definitive version is published in Nanoscale Research Letters, Vol. 6 (166). (Ttile of pre print differs from final published version )This report focuses on the production of multi-phase WO3 and WO3-x (where x could vary between 0.2 and 0.33) nanostructures synthesized by CO2-laser pyrolysis technique at varying laser wavelengths (9.22-10.82 mm) and power densities (17-110 W/cm2). The average spherical particle sizes for the wavelength variation samples ranged between 113-560 nm and the average spherical particle sizes for the power density variation samples ranged between 108-205 nm. Synthesis of W3O8 (= WO2.67) stars by this method is reported for the first time at a power density and wavelength of 2.2 kW/cm2 and 10.6 mm, respectively. It was found that more concentrated starting precursors result in the growth of hierarchical structures such as stars, whereas dilute starting precursors result in the growth of simpler structures such as wires.enLaser pyrolysisHierarchical nanostructuresTungsten trioxideCO2-laser pyrolysis techniqueNanostructuresFibresLasersFormation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheresArticleGovender, M., Shikwambana, L., Mwakikunga, B. W., Sideras-Haddad, E., Erasmus, R., & Forbes, A. (2010). Formation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheres. http://hdl.handle.net/10204/4913Govender, M, L Shikwambana, Bonex W Mwakikunga, E Sideras-Haddad, RM Erasmus, and A Forbes "Formation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheres." (2010) http://hdl.handle.net/10204/4913Govender M, Shikwambana L, Mwakikunga BW, Sideras-Haddad E, Erasmus R, Forbes A. Formation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheres. 2010; http://hdl.handle.net/10204/4913.TY - Article AU - Govender, M AU - Shikwambana, L AU - Mwakikunga, Bonex W AU - Sideras-Haddad, E AU - Erasmus, RM AU - Forbes, A AB - This report focuses on the production of multi-phase WO3 and WO3-x (where x could vary between 0.2 and 0.33) nanostructures synthesized by CO2-laser pyrolysis technique at varying laser wavelengths (9.22-10.82 mm) and power densities (17-110 W/cm2). The average spherical particle sizes for the wavelength variation samples ranged between 113-560 nm and the average spherical particle sizes for the power density variation samples ranged between 108-205 nm. Synthesis of W3O8 (= WO2.67) stars by this method is reported for the first time at a power density and wavelength of 2.2 kW/cm2 and 10.6 mm, respectively. It was found that more concentrated starting precursors result in the growth of hierarchical structures such as stars, whereas dilute starting precursors result in the growth of simpler structures such as wires. DA - 2010-06 DB - ResearchSpace DP - CSIR KW - Laser pyrolysis KW - Hierarchical nanostructures KW - Tungsten trioxide KW - CO2-laser pyrolysis technique KW - Nanostructures KW - Fibres KW - Lasers LK - https://researchspace.csir.co.za PY - 2010 SM - 1931-7573 T1 - Formation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheres TI - Formation of tungsten oxide nanostructures by laser pyrolysis: stars, fibres and spheres UR - http://hdl.handle.net/10204/4913 ER -