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Browsing by Author "Hietkamp, S"

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  • Le Roux, Lukas J; Hietkamp, S (2008-07)
    Dye-sensitised photoelectrochemical solar cells with four different electrolyte combinations were assembled and characterised using current voltage measurements. The effects that the solvents (acetonitrile - ACN and ...
  • Mathe, M; Hietkamp, S; Rohwer, MB; Modibedi, RM; Masuku, C; Masombuka, T; Mohlala, M (2006-09)
    Proton-exchange membrane fuel cells (PEMFC) have been receiving attention owing to their highly attractive properties as a power source for both stationary and mobile applications. Fabrication of Membrane Electrode Assemblies ...
  • Hietkamp, S; Masuku, C; Mathe, M; Rohwer, M; Masombuka, T; Benson, J; Bosscha, P (2006-02)
    Increasing amount of funding is becoming available internationally to develop 'hydrogen economy'. The main drivers for countries to pursue this field are the need to create more energy independence and to address environmental ...
  • Rohwer, MB; Mathe, MK; Hietkamp, S; Madidedi, RM; Nonjola, PT; Masombuka, T (CSIR, 2008-11)
    Fuel cells can contribute to energy security, because they possess the potential to convert potentially renewable fuels such as hydrogen, methanol or ethanol cleanly and efficiently into electrical energy. They are of ...
  • Brent, AC; Hietkamp, S (Ecomed Publishers, 2006-09)
    In a letter to the editor, the authors comment on BA Steen's article on "Abiotic Resource Depletion: different perceptions of the problem with mineral deposits" published in the special issue of the International Journal ...
  • Cummings, FR; Le Roux, Lukas J; Hietkamp, S (South African Institute of Physics (SAIP), 2008-07)
    Titanium dioxide (TiO) nanotubes hold great potential for application in dye-sensitised solar cells for they provide a one-dimensional transport route for generated charge carriers. An investigation is launched into the ...
  • Modibedi, M; Masombuka, T; Hietkamp, S; Mathe, M (The European Fuel Cell Forum (EFCF), 2009-06)
    Pt-Ru-P was prepared by the chemical reduction method using sodium hypophoshite as a reducing agent on Vulcan XC 72 and multi-walled carbon nano-tubes (MWCNTs). Sodium citrate was added as the stabilizer during electro-catalyst ...
  • Hietkamp, S (2006-06)
    Without legislation pollution is regarded as an “externality” high levels of air and water pollution in Europe resulted increasing industrialisation. Disasters happened e.g. London smog in the 1950 and the first clean air ...
  • Hietkamp, S; Engelbrecht, A; Scholes, B; Golding, A (2008-11)
    CSIR was commissioned by DME to compile a report on the potential for sequestration of carbon dioxide in South Africa in 2004. This report was the first attempt to obtain a picture of this potential. In the paper the main ...
  • Le Roux, Lukas J; Knoesen, D; Hietkamp, S (Springer, 2011-03)
    The work that is presented here is focused on the results that were obtained during studies of the performance of Dye Solar Cells under certain reverse bias conditions. This reverse voltage could permanently modify or ...
  • Nonjola, P; Mathe, MK; Hietkamp, S (Fibre Reinforced Composites Conference 2007, 2007-12)
    Great effort in research and development has been made over the years to improve and commercialize new electricity generating systems. To provide an alternative energy carrier, an appropriate conversion technology is needed ...