Magister Scientiae - MSc (Chemistry): Recent submissions
Now showing items 41-60 of 266
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Hydrogen generation by hydrolysis of magnesium and aluminium alloys and their hydrides
(University of the Western Cape, 2021)This study presents the successful characterization and hydrolysis of magnesium hydride (MgH2) for hydrogen generation. The as-received MgH2 served as a precursor in most of the hydrolysis experiments for H2 generation. ... -
Secondary metabolites of the uromycladium tepperianum macalpine epiphytic fungus
(University of the Western Cape, 2021)Research on natural products and medicinal plants has been conducted more with each passing year due to the great interest in isolating bioactive compounds and secondary metabolites from natural products such as plants, ... -
Polypyrrole supports for direct alcohol fuel cells.
(University of Western Cape, 2021)Anode catalysts are one of the key components of direct alcohol fuel cells (DAFCs). They play a huge role in the alcohol oxidation reaction (AOR) that occurs on the anode side. Palladium (Pd) supported on carbon material ... -
The role of surface modified TiO2 nanoparticles for application in 68Ge/68Ga generator systems and the use of molecular imprinted polymers for 68Ge breakthrough control
(University of Western Cape, 2021)Titanium dioxide (TiO2) has potential as an adsorbent within the 68Ge/68Ga generator context. To function effectively, three basic requirements are required: optimum 68Ga elution efficiency, stability and removal of the ... -
Isothermal and non-isothermal comparative study of Zn-sn system using real-time RBS
(2021)Solid-state reactions of bi-metallic systems can be driven or activated by various external stimuli like pressure, energetic photons, energetic charged particles or heat. For an example, high pressure torsion can be ... -
Active neutralisation and amelioration of acid mine drainage with fly ash
(University of the Western Cape, 2009)Due to the constraints being placed on water resources and a drive for major industries to recycle waste water, improved and cheaper water treatment technologies are being investigated. During mining, pyrite (FeS2), a ... -
Treatment of brines using commercial zeolites and zeolites synthesized from fly ash derivative
(University of the Western Cape, 2008)South Africa is one of the countries that have scarce natural resources that they have to preserve what is available at their disposal. South Africa is also fast becoming one of the countries with major industrial development. ... -
The Development of Appropriate Brine Electrolysers for Disinfection of Rural water supplies
(University of the Western Cape, 2005)A comparative study of electrolysers using different anodic materials for the electrolysis of brine (sodium chloride) for the production of sodium hypochlorite as a source of A comparative study of electrolysers using ... -
Characterization and Chemical Speciation Modelling of Saline Effluents at Sasol Synthetic Fuels Complex-Secunda and Tutuka Power Station
(University of the Western Cape, 2009)Chemical speciation and the evaluation of species distribution is the key to understanding the potential of brines to form scale or corrode the water circuit as well as the potential of mobility and release trends of the ... -
Microwave synthesis of the Schiff base metal-ligand complexes with Cu and Ni centres
(University of Western Cape, 2021)Nitric oxide (NO) plays a vital role as a biological messenger in biological systems. However, NO detection and quantification have always posed significant complications. There is, therefore, a need to develop new materials ... -
CO2 sequestration using brine impacted fly ash
(University of the Western Cape, 2009)Coal combustion accounts for over 40 % of the world's energy production and this figure is projected to increase with increasing human population and industrialization. The combustion of coal leads to the generation of ... -
Hydrogen selective properties of cesium-hydrogensulphate membranes
(University of the Western Cape, 2006)The production procedure of a CsHS04-Si02 composite membrane was optimized in order to obtain the highest possible H2:C02 and H2:C~ Idea selectivity permeance. The optimized membrane preparation procedure led to the ... -
Brine treatment using natural adsorbents
(University of the Western Cape, 2011)Studies involving the use of natural clays such as bentonite, montmorillonite and natural zeolite clinoptilolite in water treatment have been reported. Researchers suggested cost effective processes, such as ion-exchange ... -
Removal of sulphates from South African mine water using coal fly ash
(University of the Western Cape, 2009)South African power stations generate large amounts of highly alkaline fly ash (FA). This waste product has a serious impact on the environment. Acid mine drainage (AMD) is another environmental problem associated with ... -
Photovoltaics of selenide kesterite doped with nanoscopic iron and cerium oxyselenides
(University of Western Cape, 2021)As the demand for energy is constantly increasing, researchers are looking at various methods of energy production. Following the rise of solar energy becoming a major player, researchers are looking at kesterite materials, ... -
Chemical compositions and leaching behaviour of some South African fly ashe
(University of the Western Cape, 2008)Fly ash is the most abundant of the waste materials generated from coal combustion in coal-fired power stations. South Africa uses more than 100 million tonnes of low grade bituminous coal annually to produce cheap electricity ... -
An investigation into the elements influencing stock control and their relation to health care delivery in the public setting: Development of a stock control assessment tool
(University of the Western Cape, 2000)The aim of this study was to develop a Stock Control Assessment Tool for use in the public health care sector and then to apply it to identify problems in the stock control system. This would help authorities to optimize ... -
Electro chemiluminescence and organic electronics of derivatised poly(aniline sulphonic acid) light-emitting diodes
(University of the Western Cape, 2011)Electrochemiluminescence (EeL) is applied for industrial applications that have considerable potential, such as clinical diagnostic, analytical chemistry, and light-emitting devices, due to selectivity, sensitivity for ... -
Metal modified mesoporous ZSM-5 as catalysts for the oligomerization of 1- hexene
(University of Western Cape, 2021)The use of diesel engines in vehicles and heavy machinery throughout the world has been slowly increasing in the past few decades. This has led to high demand for diesel and gasoline with high octane number. Diesel and ... -
Hydrothermal synthesis of hierarchical ZSM-5 with different Si/Al ratio and their evaluation as catalysts in the catalytic cracking of hexane
(University of Western Cape, 2021)Ethylene and propylene are greatly used for their importance as feedstocks for producing useful materials. Due to rise in prices and the demand of ethylene and propylene, the need to increase the selective production of ...