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Browsing by Author "Rohwer, Mark B"

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Anion exchange membrane based on alkali doped poly(2,5-benzimidazole) for alkaline membrane fuel cell

Author: Luo, H ; Vaivars, G ; Nonjola, S ; Rohwer, Mark B ; Mathe, Mahlanyane K Date: Mar 2010 Alkaline membrane fuel cell (AMFC) has been received increasing attention among the different types of fuel cells. Ammonium quaternized polymers such as poly (arylene ether sulfones) are being developed and studied as candidates of ionomeric ... Read more
Application of AHP for the development of waste management systems that minimize infection risks in developing countries: Case studies Lesotho and South Africa

Author: Brent, AC ; Rogers, DEC ; Ramabitsa-Siimane, TSM ; Rohwer, Mark B Date: Sep 2006 This paper focuses on the establishment of waste management systems that minimize infection risks in the context of sustainable development in the developing country situations. The Analytical Hierarchy Process (AHP), a known multi-criteria ... Read more
Application of the analytical hierarchy process to establish health care waste management systems that minimise infection risks in developing countries

Author: Brent, AC ; Rogers, DEC ; Ramabitsa-Siimane, TSM ; Rohwer, Mark B Date: 2007 This paper focuses on the application of the analytical hierarchy process (AHP) technique in the context of sustainable development to establish and optimise health care waste management (HCWM) systems in rural areas of developing countries. ... Read more
Fabrication and characterisation of hydrogen fuel cell membrane electrode assemblies

Author: Mathe, Mahlanyane K ; Hietkamp, S ; Rohwer, Mark B ; Modibedi, Remegia M ; Masuku, C ; Masombuka, T ; Mohlala, M Date: Sep 2006 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 (MEAs) is a key ... Read more
Fuel cell R&D at the CSIR

Author: Hietkamp, S ; Masuku, C ; Mathe, Mahlanyane K ; Rohwer, Mark B ; Masombuka, T ; Benson, J ; Bosscha, Peter A Date: Feb 2006 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 issues. An ... Read more
Fuel cell research: Towards efficient energy

Author: Rohwer, Mark B ; Mathe, Mahlanyane K ; Hietkamp, S ; Madidedi, RM ; Nonjola, Patrick NT ; Masombuka, T Date: Nov 2008 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 particular interest to ... Read more
Microwave activation of palladium nanoparticles for enhanced ethanol electrocatalytic oxidation reaction in alkaline medium

Author: Rohwer, Mark B ; Modibedi, Remegia M ; Ozoemena, KI Date: Feb 2015 The impact of microwave irradiation on the structure and electrochemistry of monodispersed palladium nanoparticles is reported for the first time. When compared to the Pd that was not subjected to microwave treatment, the microwaved Pd ... Read more
Microwave-assisted pechini synthesis of Pd-Ni nanocatalyst for ethanol electro-oxidation in alkaline medium

Author: Rohwer, Mark B ; Ozoemena, K ; Modibedi, Remegia M Date: Nov 2012 Fuel cells provide a means for the direct conversion of fuels to electricity. Direct alcohol fuel cells (DAFCs) are particularly attractive because liquid fuels such as methanol or ethanol have a relatively low cost, a high volumetric energy ... Read more
Oxygen reduction reaction on a highly-alloyed Pt-Ni supported carbon electrocatalyst in acid solution

Author: Zheng, Haitao ; Rohwer, Mark B ; Mathe, Mahlanyane K Date: 31 Aug 2010 Alloyed electrocatalysts such as PtNi/C[1-2], PtCo/C[3], PtCr/C[4], PtFe/C [5-6], and non-alloyed Pt-TiO2/C were reportedly investigated for methanol tolerance during Oxygen reduction reaction (ORR). The high methanol tolerance of these ... Read more
Preparation and physico-chemical investigation of anatase TiO2 nanotubes for a stable anode of lithium-ion battery

Author: Fasakin, O ; Oyedotun, KO ; Kebede, Mesfin A ; Rohwer, Mark B ; Le Roux, Lukas ; Mathe, Mahlanyane K ; Eleruja, MA ; Ajayi, EOB ; Manyala, N Date: Feb 2020 Ab-initio, anatase titanium dioxide (TiO(sup2)) nanotubes were prepared from pristine anatase titanium dioxide (TiO(sup2)) nanoparticles via a low temperature modified stirring-hydrothermal technique. Scanning electron microscope (SEM) ... Read more

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Browsing by Author "Rohwer, Mark B"

Browsing by Author "Rohwer, Mark B"

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All of ResearchSpace

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