• Development of a waste management process for naturally occurring radioactive material in the South African mining industry 

  Van der Westhuizen, Abraham Jozua (University of Pretoria, 2022)

  The South African Naturally Occurring Radioactive Material (NORM) regulatory framework provides guidance on most matters associated with radiation protection within the mining and minerals processing sphere, but definitive ...
• First-principles study of the enhancement of electrochemical performance of a SnS2 monolayer for lithium/sodium-ion batteries via vacancy defects 

  Bekeur, Craig Arthur (University of Pretoria, 2023)

  Various transition metal dichalcogenides materials have been investigated from bulk to monolayer phases for different advanced technological applications. Tin disulfide monolayer offers advantages as an anode material for ...
• The effect of implantation and heat treatment on the structural evolution and migration behaviour of Selenium in glassy carbon 

  Adeojo, Samuel Adedigba (University of Pretoria, 2023)

  The storage and management of nuclear waste is perhaps the most controversial aspect of nuclear power production, as there is no permanent solution to this problem that has existed for centuries. In the last decade, our ...
• Enhancement of the electrochemical capacitors of porous carbon from cross-linked polymers through heteroatoms and cobalt incorporation 

  Bakhoum, Daba T. (University of Pretoria, 2023)

  This Ph.D. work is based on the synthesis and characterization of activated carbon from cross-linked polymers and the enhancement of its electrochemical performance through heteroatoms and cobalt incorporation. These ...
• Electrical characterization of Al-doped GaN thin films deposited by electrodeposition 

  Ali, Abdulraoof Idriss Ahmed (University of Pretoria, 2022)

  The objective of this work was to prepare and study the electrical properties of gallium nitride and Al-doped gallium nitride thin films grown by electrodeposition on different substrates for use in optoelectronic ...
• Computational insights of hydrogen vacancies mediating interaction of lithium and sodium adatoms with an electrode graphane monolayer 

  Kgalema, Sentserere Phodisho (University of Pretoria, 2023)

  Density functional theory calculations were performed to enhance interaction of Li/Na atoms with a graphane monolayer for LIBs and NIBs. The energetic stability, electronic and electrochemical properties of Li/Na atoms on ...
• Investigating the effect of substrate thickness on the integrity of plasma sprayed hydroxyapatite coatings 

  Dockrat, Unaisa (University of Pretoria, 2022)

  The demand for biomedical implants is on the rise for the maintenance and improvement of human health. These biomedical implants reinstate the function of living tissue and/or organs in the human body. Accidents, sports ...
• Training neural networks for informal road extraction 

  Wannenburg, Abraham Johannes (University of Pretoria, 2022-11)

  Roads found in informal settlements arise out of convenience are often not recorded or maintained by authorities. This may cause issues with service delivery, sustainable development and crisis mitigation, including ...
• Growth and characterization of highly stable and layered 2D/3D perovskites for solar cells 

  Thubane, Sandile Job (University of Pretoria, 2022)

  Perovskites of cesium lead halide (CsPbX3, X = Cl, Br, I) have received a lot of attention due to their relative stability in comparison to their organic-inorganic counterparts. This study synthesized a thin film of ...
• Goal-oriented stacking in radio interferometric maps 

  Smulders, Jacques Christian (University of Pretoria, 2022)

  Many astrophysical questions are addressed by large area surveys, where sensitivity limits the distance and luminosity of directly detected objects. One way to gain further effective sensitivity is to forego knowledge of ...
• Characterization and performance evaluation of electrodeposition synthesized cobalt-nickel layered double hydroxide and composites for high-efficiency hybrid capacitor applications 

  Rutavi, Gift (University of Pretoria, 2022)

  In this thesis, “Characterization and performance evaluation of electrodeposition synthesized cobalt-nickel layered double hydroxide and composites for high-efficiency hybrid capacitor applications”, an efficient binder-free ...
• Neutral hydrogen in the archetype post-merger : dual active galactic nucleus system NGC 6240 

  Santana, Karina Caitlin (University of Pretoria, 2022)

  NGC 6240 is a prototypical merger system in the nearby universe hosting a dual active galactic nucleus. It is a well studied object and has been observed across the electromagnetic spectrum using most major ground- and ...
• The large-scale radio continuum environment of the prototypical binary active galactic nucleus system, NGC 6240 

  Magolego, Isaac Selaelo (University of Pretoria, 2022)

  Diffuse radio sources are best studied at low radio frequencies (<~ 1 GHz) as they typically have steep radio spectra, resulting in higher flux densities at lower frequencies. However, this requires high surface brightness ...
• Prospecting for enigmatic radio sources with autoencoders : a novel approach 

  Ventura, Fernando Louis (University of Pretoria, 2022)

  Modern and future radio surveys performed with increasingly powerful instruments, such as the 64-antenna MeerKAT interfereometer and eventually the Square Kilometre Array (SKA), will catalogue upwards of hundreds of thousands ...
• Improving the stability of copper oxide nanoparticles in photoelectrochemical water splitting 

  Mosalakgotla, Nteseng Dorah Mano (University of Pretoria, 2022)

  In this work, the processing parameters of preparing dip coated CuO films which includes the withdrawal rate, film thickness and annealing temperature were optimized for photoelectrochemical (PEC) water splitting. The CuO ...
• Synthesis and characterization of caesium lead tri-iodide for solar cells 

  Sibiya, Sizwe Bhekithemba (University of Pretoria, 2022-03)

  In this study, we report on the synthesis and characterization of titanium dioxide thin film prepared via the spray pyrolysis technique. X-ray diffractograms confirmed a tetragonal crystal structure with an average crystallite ...
• Optimization of processing parameters in the preparation of hematite thin films for photoelectrochemical water splitting 

  Holtzhausen, Adiel (University of Pretoria, 2022-12)

  In this study, the influence of coating techniques and layering of hematite (α-Fe2O3) thin films were studied. Two colloidal-based coating techniques namely dip coating and thermal spray pyrolysis were used to synthesize ...
• A MeerKAT morphological and spectral index study of M87 

  Mtshweni, Leon (University of Pretoria, 2022-03-29)

  Messier 87 (M87) is a spectacular radio galaxy located in our cosmic backyard. Its proximity has allowed astronomers to study it in detail across the electromagnetic spectrum. M87 shows a complex structure in the radio ...
• Thermally reduced graphene oxide using atmospheric pressure tube furnace for microsupercapacitor applications 

  Maphiri, Vusani Muswa (University of Pretoria, 2022-04)

  This work is divided into two parts, namely supercapacitor (SC) and microsupercapacitor (µ-SC). In general, the electrochemical properties of thermally reduced graphene oxide (TRGO) were investigated for both SC and µ-SC ...
• Plasmonic effects of gold nanostructures in organic solar cells 

  Ngunyulu, Tlangelani Shalot (University of Pretoria, 2022)

  Gold (Au) nanospheres, nanorods and nanoprisms were synthesized using the seed-mediated growth method. The structural, optical, and morphological properties of Au nanostructures were explored. Transmission electron microscope ...

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