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Browsing by Subject "Cyclic voltammetry"

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A low-cost potentiostat for point-of-need diagnostics

Author: Bezuidenhout, Petrone H ; Smith, Suzanne ; Land, Kevin J ; Joubert, T-H Date: Sep 2017 The 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
Metal (Co, Fe) tribenzotetraazachlorin-fullerene conjugates: impact of direct p-bonding on the redox behaviour and oxygen reduction reaction

Author: Ozoemena, KI ; Mamuru, SA ; Fukuda, T ; Kobayashi, N ; Nyokong, T Date: Jun 2009 Novel 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
Nanoporous copper-cobalt mixed oxide nanorod bundles as high performance pseudocapacitive electrodes

Author: Nwanya, AC ; Awada, C ; Obi, D ; Raju, Kumar ; Ozoemena, Kenneth I ; Osuji, RU ; Ruediger, A ; Maaza, M ; Rosei, F ; Ezema, FI Date: Feb 2017 We used a simple, cost effective and scalable chemical method to deposit mixed oxides of copper and cobalt on indium tin oxide (ITO) and stainless steel (ss) substrates. The deposited mixed oxides of Cu-Co and Co-Cu exhibit uniform surface ... Read more
Nanostructured nickel (II) phthalocyanine-MWCNTs as viable nanocomposite platform for electrocatalytic detection of asulam pesticide at neutral pH conditions

Author: Siswana, MP ; Ozoemena, KI ; Geraldo, DA ; Nyokong, T Date: Aug 2010 This 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
Preparation and characterization of Pt-Sn/C and Pt-Ir/C catalysts for the electrochemical oxidation of ethanol in polymer electrolyte membrane fuel cell

Author: Masombuka, T ; Mkwizu, TS ; Modibedi, Remegia M ; Mathe, Mahlanyane K Date: Nov 2007 Low 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
Studies on the heterogeneous electron transport and oxygen reduction reaction at metal (Co, Fe) octabutylsulphonylphthalocyanines supported on multi-walled carbon nanotube modified graphite electrode

Author: Mamuru, SA ; Ozoemena, KI ; Fukuda, T ; Kobayashi, N ; Nyokong, T Date: Sep 2010 Heterogeneous 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

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Browsing by Subject "Cyclic voltammetry"

Browsing by Subject "Cyclic voltammetry"

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