By a News Reporter-Staff News Editor at Life Science Weekly -- Research findings on Chalcogens are discussed in a new report. According to news reporting originating in Saarbrucken, Germany, by NewsRx journalists, research stated, "In this paper, we report the synthesis of one-dimensional zinc oxide (ZnO) nanostructures and the impact of their morphology on oxygen gas sensing properties. The nanostructures were synthesised via chemical vapour deposition using direct oxidation in an electrical furnace."
The news reporters obtained a quote from the research from INM-Leibniz Institute for New Materials, "Structural characterisation of the samples was performed with a field emission scanning electron microscope (SEM) and X-ray diffraction (XRD) methods. The SEM images revealed the formation of different sized nanowires, nanorods and nanoflower structures, and the XRD pattern showed hexagonal structures, without any impurities. The gas sensing properties of samples grown on silicon and alumina substrates were measured in different conditions. The samples grown on the alumina substrate showed better gas sensing properties than those grown on the silicon. To determine the optimal sensitivity, the oxygen gas sensing properties of the ZnO nanostructures were measured at different temperatures and gas flows. These nanostructural gas sensors showed high sensitivity at temperatures close to ambient. The effect of the morphology of ZnO nanostructures on their oxygen sensing properties was compared."
According to the news reporters, the research concluded: "Between the different synthesised nanostructures, ZnO nanowires exhibited the highest gas sensitivity."
For more information on this research see: Oxygen sensing properties of zinc oxide nanowires, nanorods, and nanoflowers: The effect of morphology and temperature. Thin Solid Films, 2013;545():8-12. Thin Solid Films can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Thin Solid Films - www.elsevier.com/wps/product/cws_home/504106)
Our news correspondents report that additional information may be obtained by contacting H. Minaee, INM Leibniz Inst New Mat, D-66123 Saarbrucken, Germany. Additional authors for this research include S.H. Mousavi, H. Haratizadeh and P.W. de Oliveira (see also Chalcogens).
Keywords for this news article include: Europe, Germany, Chemicals, Chemistry, Chalcogens, Zinc Oxide, Saarbrucken, Zinc Compounds
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