Author:Lekitima, JN; Ozoemena, KI; Kobayashi, NDate:Nov 2013A nitrogen-enriched metallophthalocyanine, Cobalt (II)tetrapyrazinoporphyrazine (CoTPyzPz), modified with acid or phenylamine functionalized multiwalled carbon nanotubes
(MWCNTaf and MWCNTPhNH2) have been studied for application as an ...Read more
Author:Ama, Monday O; Khoele, Khotso; Ray, Suprakas SDate:Nov 2018In avoidance of metal ions into the human bloodstream, Ti6Al7Nb became a subsequent alloy for various implant’s purpose. In this study, different corrosion techniques have been utilized to characterize corrosion behavior of Ti6Al7Nb alloy in ...Read more
Author:Agboola, BO; Pillay, J; Makgopa, K; Ozoemena, KIDate:Sep 2010The redox activities of water-soluble iron(II) tetrasulfophthalocyanine (FeTSPc) and single-walled carbon nanotube-poly(m-aminobenzene sulfonic acid) (SWCNT-PABS) adsorbed on a gold surface precoated with a self-assembled monolayer (SAM) of ...Read more
Author:Magogodi, Steven M; Mathabathe, Maria N; Bolokang, Amogelang S; Siyasiya, CDate:Nov 2022Titanium aluminides (TiAl) have attracted industrial interest, particularly for high temperature applications owing to their promising mechanical properties. Due to the application of these materials to the marine environment it is therefore ...Read more
Author:Louw, E; Modibedi, Remegia M; Cele, L; Ozeomena, K; Mathe, Mahlanyane KDate:Apr 2013There are various methods used to prepare fuel cell (FC) catalysts. The electrochemical deposition method is well known for the fabrication of nanostructured catalysts for energy materials. Electrochemical atomic layer deposition (ECALD) ...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:Kebede, Mesfin A; Ezema, FIDate:Nov 2019This book explores a wide range of energy storage devices, such as a lithium ion battery, sodium ion battery, magnesium ion battery and supercapacitors. Providing a comprehensive review of the current field, it also discusses the history of ...Read more
Author:Ncube, NM; Mhlongo, WT; McCrindle, RI; Zheng, HaitaoDate:May 2018This work investigates the electrochemical performance of Al-doped Li4Ti5O12 (LTO) on the Li site (Li4-xAlxTi5O12) and Ti site (Li4Ti5-xAlxO12) (x = 0.15), evaluated by galvanostatic charge-discharge tests and the electrochemical impedance ...Read more
Author:Khotseng, L; Bangisa, A; Modibedi, Remegia M; Linkov, VDate:Jan 2016Multi-walled carbon nanotubes (MWCNTs), TiO(sub2), MoO(sub2), and carbon black Vulcan XC-72 were investigated as supports for PtRu and PtSn catalysts. X-ray diffraction (XRD) confirmed that all electrocatalysts examined display characteristic ...Read more
Author:Nithyadharseni, P; Reddy, MV; Ozoemena, KI; Ezema, FI; Balakrishna, RGDate:Jan 2016Perovskite-like structure BaSnO(sub3) ceramic oxide has been prepared by low temperature molten salt method using KOH as a flux and Ba(OH)(sub2) and BaCl(sub2) as precursors. The as-prepared compounds were characterized by various techniques ...Read more
Author:David, K; Mhlabeni, Thobile; Luo, HDate:Apr 2013The composite material has a xLi2MnO3·(1-x)LiMO2 (M = Mn, Co, Ni) structure has been considered as one of the most promising cathode materials for advanced lithium-ion batteries due to their low-cost and high capacity (> 200 mAh g−1) between ...Read more
Author:Emeji, I; Ama, Monday O; Osifo, P; Ray, Suprakash S; García-Rodríguez, O; Lefebvre, ODate:Aug 2019This study describes how carbon-cloth (CC) electrode was demonstrated to have good electrical conductivity using linear sweep voltammetry (LSV). Its electrocatalytic activity was evaluated toward the generation of hydrogen peroxide (H2O2) via ...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:Nwanya, AC; Jafta, CJ; Ejikeme, PM; Ugwuoke, PE; Reddy, MV; Osuji, RU; Ozoemena, KI; Ezema, FIDate:May 2014Polyanine 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 force microscopy ...Read more
Author:Valdes, M; Modibedi, Remegia M; Mathe, Mahlanyane K; Hillie, T; Vazquez, MDate:May 2014Cu(sub2)ZnSnS(sub4)(CZTS) thin films have been prepared using Electrochemical Atomic Layer Deposition (EC-ALD)and also by one-step conventional constant potential electrodeposition. Optimal deposition conditionswere investigated using cyclic ...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:Mkhohlakali, Andile; Fuku, Xolle; Modibedi, Remegia M; Khotseng, L; Mathe, MkhuluDate:Apr 2022Herein, we report electro-synthesis of BiTePd using electrochemical atomic layer deposition (E-ALD). The SEM-EDS, AFM, and XRD were used to characterize Pd-based thin films' surface morphology and structure composition. BiTePd electrocatalyst ...Read more
Author:Weideman, E; Van Rensburg, NJJDate:Feb 1982The effect of electroflotation using aluminium electrodes on the C.O.D., D.O.C and colour values of liquors containing acid, disperse, mordant and basic dyes in the presence and absence of wool grease was investigated.Read more
Author:Mkhohlakali, AC; Fuku, X; Modibedi, Remegia M; Khotseng, LE; Mathe, Mkhulu KDate:Jul 2021Electrochemical atomic layer deposition was used to form bimetallic (BiPd, CuPd) and trimetallic (CuBiPd) thin films via surface-confined reactions. Pd thin films were characterized by cyclic voltammetry, scanning electron microscopy (SEM) ...Read more