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Browsing by UP Author "Ozoemena, Kenneth I."
Now showing items 1-20 of 33
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Bello, Abdulhakeem; Makgopa, Katlego; Fabiane, Mopeli; Dodoo-Arhin, David; Ozoemena, Kenneth I.; Manyala, Ncholu I. (Springer, 2013-10)Few-layer graphene was synthesized on a nickel foam template by chemical vapor deposition. The resulting three-dimensional (3D) graphene was loaded with nickel oxide nanostructures using the successive ionic layer adsorption ...
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Adekunle, Abolanle Saheed; Agboola, Bolade O.; Ozoemena, Kenneth I.; Ebenso, Eno E.; Oyenkunle, John A.O.; Oluwatobi, Oluwafemi S.; Lekitima, Joel N. (Electrochemical Science Group, 2015-02-24)Supercapacitive properties of synthesized metal oxide nanoparticles (MO) vis a vis iron oxides (Fe2O3) and cobalt oxide (Co3O4) nanoparticles integrated with multi-walled carbon nanotubes (MWCNT) in a two-electrode coin ...
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Comparative surface electrochemistry of Co and Co3O4 nanoparticles : nitrite as an analytical probe Adekunle, Abolanle Saheed; Ozoemena, Kenneth I. (Electrochemical Science Group, 2010-12)This study described the decoration of edge plane pyrolytic graphite electrode (EPPGE) with synthesised cobalt and cobalt oxide nanoparticles. The modified electrode was characterised by techniques such as TEM, FESEM, XRD, ...
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Fashedemi, Omobosede O.; Miller, Hamish A.; Marchionni, Andrea; Vizza, Francesco; Ozoemena, Kenneth I. (Royal Society of Chemistry, 2015-01)Half-cell reactions and alkaline direct ethylene glycol and glycerol fuel cells (DEGFC and DGFC) have been studied on Pd-based ternary core–shell (FeCo@Fe@Pd) nanocatalyst using multi-walled carbon nanotubes bearing ...
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Ramulifho, Tendamudzimu; Ozoemena, Kenneth I.; Modibedi, Remegia M.; Jafta, Charl Jeremy; Mathe, Mkhulu K. (Elsevier, 2013-03)Electrocatalytic oxidation of ethylene glycol (EG) in alkaline medium using nano-scaled palladium-based bimetallic catalysts (PdM, where M = Ni and Sn) supported on sulfonated multi-walled carbon nanotubes (SF-MWCNTs) ...
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Adekunle, Abolanle Saheed; Farah, Abdullahi M.; Pillay, Jeseelan; Ozoemena, Kenneth I.; Mamba, Bhekie Brilliance; Agboola, Bolade O. (Elsevier, 2012-06)Edged plane pyrolytic graphite electrode (EPPGE) was modified with and without Prussian blue (PB) nanoparticles and polyaminobenzene sulphonated single-walled carbon nanotubes (SWCNTPABS) using the chemical deposition ...
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Pillay, Jeseelan; Ozoemena, Kenneth I. (Elsevier, 2007-03)Please open article to read abstract
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Nwanya, Chinwe A.; Jafta, Charl Jeremy; Ejikeme, Paul Madus; Ugwuoke, Paulinus E.; Reddy, M.V.; Osuji, Rose U.; Ozoemena, Kenneth I.; Ezema, Fabian I. (Elsevier, 2014-05)Polyanine and its nanocomposite WO3/PANI films were deposited on fluorine doped tin oxide (FTO) glassslides by simple chemical bath deposition method. The morphology structure of the composite film wasstudied using atomic ...
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Ozoemena, Kenneth I.; Mathebula, N.S. (Nsovo Samuel); Pillay, Jeseelan; Toschi, Gianna; Verschoor, J.A. (Jan Adrianus), 1953- (Royal Society of Chemistry, 2010)The integrity and properties of mycolic acid (MA) antigens integrated into a self-assembled monolayer (SAM) of N-(2-mercaptoethyl)octadecanamide, (MEODA), on a gold electrode have been interrogated using cyclic voltammetry ...
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Ozoemena, Okoroike C.; Maphumulo, Tobile; Shai, Jerry L.; Ozoemena, Kenneth I. (American Chemical Society, 2020-03)Please read abstract in the article.
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Fashedemi, Omobosede O.; Ozoemena, Kenneth I. (Royal Society of Chemistry, 2013)Palladium based nano-alloys are well known for their unique electrocatalytic properties. In this work, a palladium-decorated FeCo@Fe/C core–shell nanocatalyst has been prepared by a new method called microwave-induced ...
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Ramulifho, Tendamudzimu; Ozoemena, Kenneth I.; Modibedi, Remegia M.; Jafta, Charl Jeremy; Mathe, Mkhulu K. (Elsevier, 2012-01)The preparation of metal nanoparticles (Pd, Ni, Sn) supported on sulfonated multi-walled carbon nanotubes (SF-MWCNTs) using a very rapid microwave-assisted solvothermal strategy has been described. Electrocatalytic ...
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Nkosi, Duduzile; Pillay, Jeseelan; Ozoemena, Kenneth I.; Nouneh, Khalid; Oyama, Munetaka (Royal Society of Chemistry, 2010-08)The electron transfer dynamics and electrocatalytic behaviour of ferrocene-terminated self-assembled monolayers (SAMs), co-adsorbed with single-walled carbon nanotubes (SWCNTs) on a gold electrode, have been interrogated ...
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Lekitima, Joel N.; Ozoemena, Kenneth I.; Jafta, Charl Jeremy; Kobayashi, Nagao; Song, Yang; Tong, Dennis; Chen, Shaowei; Oyama, Munetaka (Royal Society of Chemistry, 2013-01-22)A novel asymmetric electrochemical capacitor (AEC) with high energy and power densities has been developed using a graphene oxide/cobalt(II)tetrapyrazinoporphyrazine composite (GO/CoTPyzPz) as the positive electrode and ...
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Bello, Abdulhakeem; Fashedemi, Omobosede O.; Lekitima, Joel N.; Fabiane, Mopeli; Dodoo-Arhin, David; Ozoemena, Kenneth I.; Gogotsi, Yury; Johnson, Alan T. Charlie; Manyala, Ncholu I. (American Institute of Physics, 2013)We have fabricated a symmetric electrochemical capacitor with high energy and power densities based on a composite of graphene foam (GF) with ~80 wt% of manganese oxide (MnO2) deposited by hydrothermal synthesis. Raman ...
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Makgopa, Katlego; Ejikeme, Paul Madus; Jafta, Charl Jeremy; Raju, Kumar; Zeiger, Marco; Presser, Volker; Ozoemena, Kenneth I. (Royal Society of Chemistry, 2015-02)We present a study on the pseudocapacitive properties of birnessite-type MnO2 grafted on highly graphitized onion-like carbon (OLC/MnO2). In a three-electrode setup, we evaluated two different substrates, namely a platinum ...
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Chidembo, Alfred Tawirirana; Aboutalebi, Seyed Hamed; Konstantinov, Konstantin; Jafta, Charl Jeremy; Liu, Hua Kun; Ozoemena, Kenneth I. (Royal Society of Chemistry, 2014)We report the use of a spray pyrolysismethod to synthesize high surface area (BET surface area of 139m2 g 1) self-organized, micron sized urchin-like composites made up of reduced graphene oxide and needle-shaped manganese ...
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Ozoemena, Kenneth I.; Nyokong, Tebello; Nkosi, Duduzile; Chambrier, Isabelle; Cook, Michael J. (Elsevier, 2007-03-10)Please open article to read abstract
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Mamuru, Solomon A.; Ozoemena, Kenneth I.; Fukuda, Takamitsu; Kobayashi, Nagao (Royal Society of Chemistry, 2010-10)A novel platinum-based macrocycle, iron(II) tetrakis(diaquaplatinum)octacarboxyphthalocyanine (PtFeOCPc), was synthesised and characterised. The heterogeneous electron transfer and electrocatalytic properties of this ...
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Bello, Abdulhakeem; Fashedemi, Omobosede O.; Fabiane, Mopeli; Lekitima, Joel N.; Ozoemena, Kenneth I.; Manyala, Ncholu I. (Elsevier, 2013-12)A green chemistry approach (hydrothermal microwave irradiation) has been used to deposit manganese oxide on nickel foam-graphene. The 3D graphene was synthesized using nickel foam template by chemical vapor deposition ...
Now showing items 1-20 of 33