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Browsing Research Articles (University of Pretoria) by UP Author "Fashedemi, Omobosede O."
Now showing items 1-8 of 8
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Bello, Abdulhakeem; Fashedemi, Omobosede O.; Momodu, Damilola Y.; Barzegar, Farshad; Masikhwa, T.M. (Tshifhiwa); Madito, M.J. (Moshawe); Taghizadeh, Fatemeh; Dangbegnon, Julien K.; Manyala, Ncholu I. (Elsevier, 2015-08)A microwave irradiation method has been used to prepare mixed nickel cobalt sulfide (NixCoyS4) nanosheets with different stoichiometric composition as electrodes for electrochemical capacitors. This study has been ...
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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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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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Barzegar, Farshad; Momodu, Damilola Y.; Fashedemi, Omobosede O.; Bello, Abdulhakeem; Dangbegnon, Julien K.; Manyala, Ncholu I. (Royal Society of Chemistry, 2015-12)In this study, porous activated carbons (AC) were synthesized by an environmentally friendly technique involving chemical activation and carbonization, with an in-depth experimental study carried out to understand the ...
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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 ...
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Bello, Abdulhakeem; Fashedemi, Omobosede O.; Barzegar, Farshad; Madito, M.J. (Moshawe); Momodu, Damilola Y.; Masikhwa, T.M. (Tshifhiwa); Dangbegnon, Julien K.; Manyala, Ncholu I. (Elsevier, 2016-10)The green chemistry route (Microwave) has been used to produce nanocomposite materials based on activated carbon (AC) and manganese (Mn) oxide nanostructures. XRD analysis revealed that amorphous and crystalline oxide ...
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Fashedemi, Omobosede O.; Ozoemena, Kenneth I. (Royal Society of Chemistry, 2015-02)A nanoscale iron(II) tetrasulfophthalocyanine (nanoFeTSPc) catalyst obtained by co-ordinating with hexadecyltrimethylammonium bromide and subsequently anchored onto multi-walled carbon nanotubes (MWCNTs) for oxygen ...
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Barzegar, Farshad; Bello, Abdulhakeem; Fashedemi, Omobosede O.; Dangbegnon, Julien K.; Momodu, Damilola Y.; Taghizadeh, Fatemeh; Manyala, Ncholu I. (Elsevier, 2015-09)A scalable production of high surface area nanoporous carbon material (~ 2994 m2 g-1) with good distribution of micro-, meso- and macro-pores was hydrothermally synthesized using both cheap polymers and graphene foam as ...
Now showing items 1-8 of 8