Author:Le Roux, Lukas J; Hietkamp, S; Cummings, FDate:Nov 2008An attractive and cheaper alternative to siliconbased photovoltaic (PV) cells for the conversion of solar light into electrical energy is to utilise dyeadsorbed, large-band-gap metal oxide materials such as TiO2 to absorb the solar light. ...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:Chidembo, AT; Ozoemena, KIDate:Nov 2010Electrochemical capacitive behaviour of the electropolymeric nickel tetra-aminophthalocyanine (poly-NiTAPc) supported on multiwalled carbon nanotube (MWCNT) platform is described. From the data in 1 M H2SO4, the MWCNT-poly-NiTAPc exhibited ...Read more
Author:Pillay, J; Agboola, BO; Ozoemena, KIDate:Jun 2009Electrochemical behaviour of self-assembled monolayer of 2-dimethylaminoethanethiol (DMAET) on gold electrode, with and without integration with SWCNT-poly(m-aminobenzene sulphonic acid) (SWCNT-PABS) has been probed. It is proved that the ...Read more
Author:Adekunle, AS; Ozoemena, KIDate:Jun 2010This work describes the electron transport and electrocatalytic properties of chemically-synthesized nickel (Ni) and nickel oxide (NiO) nanoparticles supported on multi-walled carbon nanotubes (MWCNT) platforms. Successful modification of the ...Read more
Author:Adekunle, AS; Ozoemena, KIDate:Jul 2011Supercapacitive properties of single-walled carbon nanotubes/metal oxides nanocomposites (SWCNT-MO where M=Ni, Fe, Co) have been described. The SWCNT-MO nanocomposites was confirmed with SEM, EDX and XPS techniques. Supercapacitive properties ...Read more
Author:Nwanya, AC; Obi, D; Ozoemena, Kenneth I; Osuji, RU; Awada, CDate:Apr 2016We describe the chemical synthesis of binderless and surfactant free CuO films for pseudocapacitive applications. Nanosheet-like and nanorod-like CuO films are deposited on indium tin oxide (ITO) substrates using the successive ionic layer ...Read more
Author:Modibedi, Remegia MDate:May 2008Metrohm potentiostat are used in our laboratory for characterising fuel cell electrodes. Pt based materials were prepared and tested for electrochemical activity.Read more
Author:Bezuidenhout, Petrone H; Smith, Suzanne; Land, Kevin J; Joubert, T-HDate:Sep 2017The work presented details the development of a lowcost potentiostat, with the aim of creating an ink-jet printed hybrid paper-based low-cost sensing system for rapid water quality monitoring. Potentiostats exhibit high sensitivities and can ...Read more
Author:Ozoemena, KI; Mamuru, SA; Fukuda, T; Kobayashi, N; Nyokong, TDate:Jun 2009Novel hexabutylsulphonyltribenzotetraazachlorin–fullerene (C60) complexes of iron (FeHBSTBTAC–C60) and cobalt (CoHBSTBTAC–C60) have been synthesized and their electrochemistry and oxygen reduction reaction (ORR) compared with their ...Read more
Author:Siswana, MP; Ozoemena, KI; Geraldo, DA; Nyokong, TDate:Aug 2010This work reports for the first time that nanostructured nickel (II) phthalocyanine/multiwalled carbon nanotubes composite supported on a basal plane pyrolytic electrode (NiPcNP/MWCNT-BPPGE) could potentially serve as a viable platform for ...Read more
Author:Masombuka, T; Mkwizu, TS; Modibedi, Remegia M; Mathe, Mahlanyane KDate:Nov 2007Low temperature fuel cells with methanol or ethanol as the fuel represent an environmentally friendly technology and are attracting considerable interest as a means of producing electricity. High surface area carbon supported Pt is recognised ...Read more
Author:Mamuru, SA; Ozoemena, KI; Fukuda, T; Kobayashi, N; Nyokong, TDate:Sep 2010Heterogeneous electron transfer dynamics and oxygen reduction reaction (ORR) activities using octabutylsulphonylphthalocyanine complexes of iron (FeOBSPc) and cobalt (CoOBSPc) supported on multi-walled carbon nanotube (MWCNT) platforms have ...Read more