Browsing by Subject "Hydrogen"
Now showing items 1-10 of 17
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Characterisation tools development for PEM electrolysers
(Elsevier, 2014)Electrochemical impedance spectroscopy (EIS), current interrupt (CI) and current mapping (CM) were investigated as in-situ characterisation tools for PEM electrolysers. A 25 cm2 cell with titanium anode and carbon cathode ... -
The chemical reactor for the decomposition of sulphuric acid for the hybrid sulphur process
(North-West University, 2008)The utilisation of alternate sources of energy has reached critical levels due to the constantly growing demand for energy and the diminishing of fossil fuels. The production of hydrogen through the Hybrid Sulphur process ... -
HySA infrastructure center of competence: a strategic collaboration platform for renewable hydrogen production and storage for fuel cell telecom applications
(IEEE, 2014)The Department of Science and Technology of South Africa developed the National Hydrogen and Fuel Cells Technologies (HFCT) Research, Development and Innovation Strategy. The National Strategy was branded Hydrogen South ... -
Investigation of Pt supported on carbon, ZrO2, Ta2O5 and Nb2O5 as electrocatalysts for the electro–oxidation of SO2
(North-West University, 2011)The gradual depletion of and dependence on fossil fuels, air pollution and global warming have all accelerated the development of alternative energy systems which use hydrogen as an energy carrier. The hybrid sulphur cycle ... -
Laser induced H2 production employing Pt-TiO2 photocatalysts
(Elsevier, 2013)The photocatalytic production of hydrogen from water as well as from an aqueous methanol solution employing pre-treated TiO2 and various Pt-TiO2 photocatalysts was studied by using an Nd:YAG laser as irradiation source. ... -
Mathematical methodology and software package for investigation of nonstationary hydrogen permeability in membranes used in electrolysers and hydrogen fuel cells
(Elsevier, 2017)As part of the methodology to control gas permeability of functional materials, mathematical approach is considered that takes into account a diffusion process through a plate with the boundary conditions of the 1st and ... -
New insights into the halide-related reactions on platinum surfaces : an electrochemical investigation
(North-West University (South Africa). Potchefstroom Campus, 2019)The results of an electrochemical investigation of polycrystalline platinum are presented. The aim of the study was the elucidation of aspects of the electrochemistry of polycrystalline platinum in 0.5 M sulphuric acid ... -
On the influence of methanol addition on the performances of PEM fuel cells operated at subzero temperatures
(Elsevier, 2020)The storage and the operation of proton exchange membrane fuel cells (PEM FCs) at subzero temperatures result in the ageing and degradation of membrane-electrode assemblies (MEAs). In this study, we investigated the effect ... -
Performance evaluation and emissions reduction of a micro gas turbine via the co-combustion of H2/CH4/CO2 fuel blends
(Elsevier, 2020)Worldwide energy supply is rapidly shifting towards more sustainable and cleaner power generation technologies including solar PV, wind turbines and natural gas. The co-combustion of fuel blends, consisting of renewably-generated ... -
Power management and sizing optimisation of renewable energy hydrogen systems
(North-West University (South Africa) , Potchefstroom Campus, 2015)Solar and wind renewable energy (RE) sources are widely available and a viable alternative for generating cleaner energy. These RE sources are however intermittent and dependent on location, time of day and season. Adding ...