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Novel ZnO nanostructures: synthesis, growth mechanism, and applications
(University of the Free State (Qwaqwa Campus), 2014-12)
The ZnO nanostructures were successfully synthesized by chemical bath deposition method (CBD) to study the influence of parameters such as reaction temperature, time, precursor concentration and the annealing temperature ...
Synthesis and characterization of Ce³⁺ doped silica (SiO₂) ) nanophosphors co-doped with Al³⁺ or Mg²⁺ ions
(University of the Free State (Qwaqwa Campus), 2009-11)
In recent studies, amorphous silica (SiO2) has been used as a host matrix for rare-earth ions to prepare luminescent materials that can be used in various light emitting devices. Sol-gel glasses have the potential to hold ...
Synthesis of ZnO Nanoparticles using environmentally friendly Zinc-Air System
(University of the Free State, 2015-01)
Zinc-air batteries have high specific energy, environmental compatibility and
use low-cost materials. They have long been considered to be attractive as
potential power sources for electronic applications. In the operation ...
Luminescent properties of synthesized PbS nanoparticle phosphors
(University of the Free State, 2008-08)
Luminescent lead sulphide (PbS) nanoparticles embedded in an amorphous silica (SiO2)
matrix were synthesized at room temperature by a sol-gel process. The prepared
nanocomposite materials were crushed into powders and ...
Synthesis and characterization of down−conversion nanophosphors
(University of the Free State, 2014-10)
Luminescent zinc aluminate (ZnAl2O4) nanoparticles, crystalline–low quartz and amorphous silica powders were incorporated with Ce3+ and Tb3+ ions. These powders were successfully synthesized by the solution combustion and ...
Modification of nano-sized zinc zeolitic 2-methylimidazolate frameworks (zif-8) by solvent assisted ligand exchange and post-sythetic modification to enhance functionality towards catalysis, gas storage and drug delivery
(University of the Free State, 2017)
English: Zeolitic Imidazolate Framework-8 nanoparticles (nZIF-8) were successfully synthesized during
isothermal benchtop reactions, with different reagent concentrations in methanol. At an optimal
concentration, an ...
The synthesis and characterization of the ZnO nanoparticles
(University of the Free State (Qwaqwa Campus), 2011-11)
ZnO has been by far the most interesting semiconductor because of its properties. The ZnO nanostructures were synthesized by a sol-gel method and the samples were annealed in air at various temperatures capped with polymers ...
Material properties of semiconducting nanostructures synthesized using the chemical bath deposition method
(University of the Free State (QwaQwa Campus), 2013-11)
The recent global research interest in wide band gap semiconductors has been focused on zinc oxide (ZnO) due to its excellent and unique properties as a semiconductor material. The high electron mobility, high thermal ...
Nanoscale model catalysts supported by metal organic frameworks
(University of the Free State, 2009-11)
English: The aim of this study was to use square planar platinum(II) and palladium(II) complexes for the synthesis of bridged complexes and as building blocks for the subsequent construction of two dimensional metal organic ...
Synthesis and absorptive properties of metal-loaded nano-sized zinc zeolitic 2-methlimidazolate frameworks (ZIF-8) with applications in heterogeneous catalysis
(University of the Free State, 2014)
Zeolitic Imidazole Framework-8 nanoparticles, a subclass of Metal Organic Frameworks, were successfully synthesized with particle size control by temperature, using isothermal benchtop reactions in methanol. As the synthesis ...