Author:Luo, H; Vaivars, G; Nonjola, S; Rohwer, Mark B; Mathe, Mahlanyane KDate:Mar 2010Alkaline 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
Author:Luo, H; Vaivars, G; Agboola, B; Mu, s; Mathe, Mahlanyane KDate:Feb 2012The properties of alkali doped poly(2,5-benzimidazole) membrane with different alkali doping level for fuel cell application is reported in this work. The alkali doping level played an important role for the ion conductivity of the membrane. ...Read more
Author:Chinecherem, A; Kebede, Mesfin ADate:Nov 2021The need for increased energy security in the nation has diverted energy sources from conventional forms to the use of fuel cells. Fuel cells are generally accepted for electricity generation due to their increased conversion efficiency, ...Read more
Author:Ejikeme, PM; Makgopa, K; Ozoemena, KIDate:Jul 2016The operating life of a fuel cell is expected to be thousands of hours. One of the critical components of the fuel cell that will allow for such long-life cycle is the catalyst-support material. The support material is expected, amongst others, ...Read more
Author:Maxakato, NW; Ozoemena, KI; Arendse, CJDate:2008Fuel Cells (FC) employing methanol are extremely attractive as power sources for portable applications. One of the keys to the development of FC is to find a new and improved electrocatalyst. During methanol electro-oxidation on platinum (Pt) ...Read more
Author:Mathe, Mahlanyane K; Mkwizu, T; Modibedi, Remegia MDate:2012The CSIR undertakes research in the Electrocatalysis of fuel cells and for hydrogen production. The Hydrogen South Africa (HySA) strategy supports research on electrocatalysts due to their importance to the national beneficiation strategy. ...Read more
Author:Louw, EK; Modibedi, Remegia M; Ozoemena, K; Mathe, Mahlanyane KDate:Jul 2012The cost of the platinum catalyst hinders the progress of direct methanol fuel cells (DMFCs) into the commercial world. Electrochemical atomic layer deposition (ECALD) method was used to reduce the amount of Pt used and to increase its ...Read more
Author:Xaba, Nqobile; Modibedi, Remegia M; Mathe, Mahlanyane K; Khotseng, LEDate:Dec 2020PdBiSn thin film on Au substrate was prepared by means of the electrochemical atomic layer deposition (E-ALD) technique. The morphology and elemental distribution of the catalysts was determined using scanning electron microscope equipped ...Read more
Author:Modibedi, Remegia M; Mathe, Mahlanyane K; Motsoeneng, RG; Khotseng, LE; Ozoemena, KIDate:May 2014Direct alcohol fuel cells (DAFCs) continue to extensive attention as potential power sources for portable and stationary applications. The oxygen reduction reaction (ORR) involving the four electron transfer remains a challenge for DAFCs due ...Read more
Author:Chi, B; Ye, Y; Lu, X; Jiang, S; Du, L; Zeng, J; Ren, Jianwei; Liao, SDate:Dec 2019Enhancing membrane electrode assembly (MEA) performance is an ongoing pursuit in the drive to meet the increasing demand for fuel cell technology. In the present study, we utilize carbon nanotubes (CNTs) as porosity enhancers and polytetraf ...Read more
Author:Modibedi, Remegia MDate:Jul 2013Fuel cells continue to be investigated as alternative energy source because of the high energy demand worldwide. Research activities worldwide are focussed on improving the performance of the catalysts, support material, membrane, MEA ...Read more
Author:Masa, J; Ozoemena, KI; Schuhmann, W; Zagal, JHDate:2013The high prospects of exploiting the oxygen reduction reaction (ORR) for lucrative technologies, for example, in the fuel cells industry, chlor-alkali electrolysis, and metal-air batteries, to name but a few, have prompted enormous research ...Read more
Author:Luo, H; Mathe, Mahlanyane KDate:31 Aug 2010Energy is one of the most important factors that will influence the shape of society in the 21st century. Fuel cells are electrochemical energy converters, transforming chemical energy directly into electricity. Fuel cells are the main zero ...Read more
Author:Singh, M; Mukoma, Peter; North, Brian C; Majozi, TDate:Dec 2020Fossil 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
Author:Louw, EKDate:Dec 2013Electrochemical atomic layer deposition technique was chosen in this study for the deposition of platinum nanostructures onto various substrates such as carbon paper, nickel foam and titanium mesh. Electrochemical evaluation and morphological ...Read more