Author:Nkosi, SS; Mwakikunga, Bonex W; Sideras-Haddad, E; Forbes, ADate:Jun 2013Highly crystalline nanospherical iron–platinum systems were produced by 248 nm laser irradiation of a liquid precursor at different laser fluences, ranging from 100–375 mJ/cm2. The influence of laser intensity on particle size, iron composition, ...Read more
Author:Liu, GQ; Wen, L; Liu, GY; Wu, QY; Luo, HZ; Ma, BY; Tian, YWDate:Jun 2011The spinel compound Li4Ti5O12 was synthesized by a solid state method. In this synthesizing process, anatase TiO2 and Li2CO3 were used as reactants. The influences of reaction temperature and calcination time on the properties of products ...Read more
Author:Liu, GQ; Wen, L; Liu, GY; Luo, HZ; Ma, BY; Wu, QY; Tian, YWDate:Aug 2011Spinel compound LiNi0.4Mn1.5Cr0.1O4 (LNMCO) and Li4Ti5O12 (LTO) were synthesized by the sol-gel method and the solid-state method, respectively. The particle sizes of the products LiNi0.4Mn1.5Cr0.1O4 and Li4Ti5O12 were 0.5 to 2 um and 0.5 to ...Read more
Author:Kebede, Mesfin A; Kunjuzwa, N; Ozoemena, KI; Mathe, Mahlanyane KDate:Oct 2012Spherical pristine LiMn(sub2)O(sub4) and Ni doped LiNixMn(sub2-x)O(sub)4 (x=0.1, 0.2, 0.3, 0.4, 0.5) cathode materials for lithium ion battery with high first cycle discharge capacity and excellent cycle performance were synthesized using the ...Read more
Author:Kebede, Mesfin A; Kunjuzwa, N; Ozoemena, K; Mathe, Mahlanyane KDate:Nov 2013Spherical pristine LiMn2O4 and Ni doped LiNixMn2-xO4 (x=0.1, 0.2, 0.3, 0.4, 0.5) cathode materials for lithium ion battery with high first cycle discharge capacity and excellent cycle performance were synthesized using the solution-combustion ...Read more
Author:Mittal, H; Jindal, R; Kaith, BS; Maity, Arjun; Ray, SSDate:Dec 2014This article reports the development of biodegradable flocculants based on graft co-polymers of gum ghatti (Gg) and a mixture of acrylamide and acrylonitrile co-monomers (AAm-co-AN). The hydrogel polymer exhibited an excellent swelling capacity ...Read more
Author:Kumar, Neeraj; Sinha Ray, SuprakashDate:Feb 2018“Nanomaterial” and “nanotechnology” have become well-known terms, not only among scientists, engineers, fashion designers, and architects, but also the general public. Owing to their extraordinary and unexpected behavior, nanomaterials have ...Read more
Author:Bhattacharjee, K; Chatterjee, TN; Pati, SP; Das, GC; Ray, Suprakas S; Maity, ArjunDate:Jan 2016The decoration of carbon spheres (CS) by highly dispersed tantalum carbide nanoparticles (TaC NPs) was achieved, for the first time by a unique carbothermal reduction method at 1350 °C for 30 min under reduced oxygen partial pressure. TaC NPs ...Read more
Author:Reddy, GSM; Narasimhaswamy, T; Ray, Suprakas S; Raju, KMDate:Jun 2018A new series of side chain liquid crystalline copolymers consisting of a mesogenic monomer and a nonmesogenic n-butyl methacrylate are prepared by free radical solution polymerization. The mesogenic monomer is synthesized by a multistep route ...Read more
Author:Makiwa, G; Katumba, G; Olumekor, LDate:Aug 2008The authors present a cheaper and environmentally friendly method to fabricate efficient spectrally selective solar absorber materials. The sol-gel technique was used to fabricate carbon-silica (C-SiO2) and carbon-nickel oxide (C-NiO) composite ...Read more
Author:Price, T; Majozi, TDate:Aug 2010The use of steam in heat exchanger networks (HENs) can be reduced by the application of heat integration with the intention of debottlenecking the steam boiler and indirectly reducing the water requirement [Coetzee and Majozi. Ind. Eng. Chem. ...Read more
Author:Dejene, FB; Kebede, Mesfin ADate:Jul 2011Effect of Tb3+ ion concentrations on the structural and persistence luminescence properties of CaSixOy:Tb3+ crystals were evaluated using powders grown by the solution combustion technique. The XRD study indicates the change of phase from ...Read more
Author:Thackeray, MM; De Kock, A; David, WIFDate:Oct 1993Lithium-manganese-oxides prepared at moderate temperatures are under investigation as insertion electrodes for rechargeable lithium batteries. The structures of two defect-spinel compounds synthesized by the reaction of MnCO3 and Li2CO3 at ...Read more
Author:Thackeray, MM; De Kock, A; David, WIFDate:Oct 1993Lithium-manganese-oxides prepared at moderate temperatures are under investigation as insertion electrodes for rechargeable lithium batteries. The structures of two defect-spinel compounds synthesised by the reaction of MnCO3 and Li2CO3 at ...Read more
Author:Oladipo, Folorunso; Hamam, Y; Sadiku, R; Ray, Suprakas S; Adekoya, GJDate:Mar 2021The bane of energy sufficiency lies in the inability to harness and store the plethora of the world's renewable energies. Although many materials have been used in the development of electrochemical storage devices: low energy density, low ...Read more
Author:Mabank, T; Alexandre, Kabamba B; Pelly, SC; Green, IR; Van Otterlo, WALDate:Jul 20196-Methoxytetrahydroisoquinoline hydrochloride was converted into four small libraries of substituted ureas, thioureas, sulfonamides and N-aryls, using the tetrahydroisoquinoline nitrogen as the scaffold-linking atom. Some of the compounds ...Read more