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Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells

Author: Abuin, GC ; Nonjola, Patrick NT ; Franceschini, E ; Izraelevitch, F ; Corti, H ; Mathe, Mahlanyane K Date: Jun 2009 Recently, alkaline direct alcohol fuel cells have received increased attention for the following reasons: anion charge carrier (OH) movement from cathode to anode, opposite to the movement of protons in proton exchange membranes (PEM), may ... Read more
The cost of production and storage of renewable hydrogen in South Africa and transport to Japan and EU up to 2050 under different scenarios

Author: Roos, Thomas H Date: Oct 2021 The decarbonisation of hard-to-abate sectors globally will require significant volumes of carbon-free hydrogen. An investigation has been performed to determine the cost at which hydrogen can be generated by electrolysis using renewable ... Read more
Extension of the lifetime of tantalum filaments in the hot-wire (Cat) 3 Chemical Vapor Deposition process

Author: Knoesen, D ; Arendse, C ; Halindintwali, S ; Muller, T Date: Jan 2008 One of the prime components of a hot-wire (Cat) Chemical Vapor Deposition system is the filament used to pyro-catalytically crack the gases like silane. Burnt out tantalum filaments were studied to determine the possible improvement of lifetime ... Read more
Femtosecond laser control of chemical reaction of carbon monoxide and hydrogen

Author: Du Plessis, A ; Strydom, CA ; Uys, H ; Botha, L ; Roberts, T ; Dlamini, TH Date: Sep 2010 Femtosecond laser control of chemical reactions is made possible through the use of pulse-shaping techniques coupled to a learning algorithm feedback loop – teaching the laser pulse to control the chemical reaction. This can result in ... Read more
The first step towards decarbonized air mobility in South Africa: A hydrogen powered unmanned aerial vehicle

Author: Jamison, Kevin A ; Naidoo, Purusha ; Ramotsabi, Katleho Date: Nov 2022 The South African government is investing in the use of hydrogen fuel as a pathway towards decarbonising transport sectors. Hydrogen is likely to be a viable option for decarbonising air transport and it is being investigated intensively ... Read more
From biogas to hydrogen: A techno-economic study on the production of turquoise hydrogen and solid carbons

Author: Swartbooi, Ashton ; Kapanji-Kakoma, KK ; Musyoka, Nicholas M Date: Sep 2022 Biogas is a renewable feedstock that can be used to produce hydrogen through the decomposition of biomethane. However, the economics of the process are not well studied and understood, especially in cases where solid carbons are also produced, ... Read more
A mathematical model for optimum design and synthesis of a hybrid electrolyser-fuel cell system: Production of hydrogen and freshwater from seawater

Author: Singh, M ; Mukoma, Peter ; North, Brian C ; Majozi, T Date: Dec 2020 Fossil fuels have earned a reputation as unsustainable sources of energy, due to the release of carbon emissions that are attributable to global warming. To overcome the extensive release of carbon emissions into the environment, different ... Read more
Stable isotope analysis of migratory connectivity in a threatened intra-African migrant, the Blue Swallow (Hirundo atrocaerulea)

Author: Wakelin, J ; McKechnie, AE ; Woodborne, SM Date: Jul 2010 The Blue Swallow (Hirundo atrocaerulea) is a threatened intra-African migrant with breeding populations in three geographically disjunct regions. We analysed stable hydrogen, nitrogen and carbon isotope ratios in feather keratin to determine ... Read more

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Browsing by Subject "Hydrogen"

Browsing by Subject "Hydrogen"

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