Browsing by Subject "Aluminium"
Now showing items 1-6 of 6
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Corrosion Inhibition of Al–alloy in 3.5% NaCl Solution by a Natural Inhibitor: An Electrochemical and Surface Study
(ESG, 2014)Root extract of Copt is chinensis (CCR) was used and its inhibition efficiency on corrosion of Al alloy in 3.5 wt.% NaCl was investigated through surface morphology and electrochemical techniques. The Nyquist ... -
Extraction of K, AI and Ti containing compounds from ash produced by low temperature combustion
(North-West University (South Africa), 2019)South African coal samples can contain up to 30% aluminium oxide which is constituted in the mullite and insoluble aluminium silicate mineral phases. This suggests that coal ash, produced in power plants or thermal processing ... -
FACTSAGE™ thermo-equilibrium simulations of mineral transformations in coal combustion ash
(SAIMM, 2018)The aim of this investigation is to report on the influence of operating conditions, and of additives such as potassium carbonate, on the slagging behaviour of South African coal. This was done using a FACTSAGE™ model that ... -
Hydrogen generation by the reaction of mechanochemically activated aluminium and water
(North-West University (South Africa), 2019)This dissertation presents a method to generate on-demand and pure hydrogen from neutral pH water using a hydrolysing material, i.e. mechanochemically activated aluminium (Al), under standard ambient conditions. The ... -
Optimisation of PtxNiyAlz ratios as thin film electrocatalysts for the oxygen evolution reaction (OER) in alkaline medium
(North-West University (South Africa), 2020)The world is currently reliant on energy sources such as oil, coal and gas (all fossil fuels) for the supply of the global growing energy demand. However, these fossil fuels are diminishing and have drawbacks such as the ... -
Optimising the dissolution of U/ Al in alkaline solutions and subsequent dissolution of the generated uranium residue in nitric acid
(North-West University (South Africa), 2019)SAFARI-I reactor is a "tank-in-pool" high flux reactor that is situated in Pelindaba, South Africa. The SAF ARI-1 is a material testing reactor that uses LEU target plates, containing 19% uranium enrichment. When producing ...