Browsing Chemistry by Title
Now showing items 59-74 of 74
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Spinel ferrites gas sensors: a review of sensing parameters, mechanism and the effects of ion substitution
(Taylor & Francis, 2021-09)There is an increasing demand of highly sensitive, stable and highly selective gas sensors to detect toxic gases. This is inspired by the need to monitor the concentration of these gases in order to guarantee humans, ... -
Spinel ferrites gas sensors: a review of sensing parameters, mechanism and the effects of ion substitution
(Taylor & Francis Group, LLC, 2021-09-03)There is an increasing demand of highly sensitive, stable and highly selective gas sensors to detect toxic gases. This is inspired by the need to monitor the concentration of these gases in order to guarantee humans, ... -
Status of Water Quality of Naka River in Meru South, Kenya.
(2012)The study was carried out for a period of two seasons (wet and dry) in a year. The physicochemical, bacteriological parameters of water and trace metals in sediment samples were evaluated at ... -
Structural properties of high density polyethylene matrix composites reinforced with open air and furnace rice husks ash
(Journal of Chemical Engineering and Materials Science, 2021-12)In this work, rice husks ash (RHA) was introduced to pure and recycled high density polyethylene (HDPE) matrix, at varying ration (0-50%) to formulate rice husks ash High density polyethylene (RHAHDPE) composite. RHA was ... -
A study of new half-sandwich Osmium(II) complexes with bidentate N,N-chelating ligands and their use in the transfer hydrogenation of ketones
(2016-11)The reaction of appropriate N,N-bidentate ligands with the [(η6-p-cymene)Os(μ-Cl)Cl]2 dimer, followed by metathesis reaction with NH4PF6, gave the new osmium(II) arene complex salts [(η6-p-cymene)OsCl(C5H4N-2-CH=N-R]PF6, ... -
Surface potential, fermi level and band gap energy of copper doped magnesium nickel ferrite nanoparticles
(Sami Publishing Compan, 2020)Optical, electrical, and electronic properties of materials are essential in the fabrication of electronic devices. These properties can be improved through doping and reduction of the size of a material to nanoscale. ... -
Synthesis and characterization of half-sandwich ruthenium(II) complexes with N-alkyl pyridyl-imine ligands and their application in transfer hydrogenation of ketones
(2016-08-24)A series of new arene ruthenium(II) complexes were prepared by reaction of ruthenium(II) precursors of the general formula [(η6-arene)Ru(μ-Cl)Cl]2 with N,N′-bidentate pyridyl-imine ligands to form complexes of the type ... -
Synthesis and characterization of piano-stool ruthenium complexes with N,N′-pyridine imine bidentate ligands and their application in styrene oxidation
(Elsevier, 2016-04)The new complexes [(η6-arene)RuCl(C5H4N-2-CH N-R)]PF6 (arene = C6H6 with R = 4- flourophenyl (1), 4-chlorophenyl (2), 4-bromophenyl (3), 4 -iodophenyl (4), 2, 5-dichlorophenyl (5) or p-cymene with R = 4-flourophenyl (6), ... -
Synthesis and characterization of some new half-sandwich ruthenium(II) complexes with bidentate N,N′-ligands and their application in alcohol oxidation
(2016)Graphical abstract New ruthenium (II) pyridine-imine complexes have been prepared and characterized. They show good catalytic activity in the oxidation of alcohols to carbonyl products using NaIO4 in a H2O/tert-butanol mixture. -
Synthesis and characterization of water-soluble arene- ruthenium complexes and their application in biphasic olefin oxidation
(2018-12-25)New water-soluble complexes [(η6-C6H6)RuCl(C5H4N-2-CH = N-R)]Cl (1) (with R = 4-hydroxymethylphenyl (a), 2,4-dichlorophenyl (b), 2-fluorophenyl (c), 3-carboxyphenyl (d)) have been synthesized by reacting [(η6-C6H6)Ru(μ-Cl)Cl]2 ... -
Synthesis and Insecticidal activities of some selected hydroxytriazenes
(2012-10)Eight hydroxytriazenes were synthesized and then subjected to spot tests. The composition of these hydroxytriazenes was analyzed using elemental analysis and their physical characteristics like melting point, crystal shape ... -
Synthesis and insecticidal activities of some selected hydroxytriazenes
(2011-10)Eight hydroxytriazenes were synthesized and then subjected to spot tests. The composition of these hydroxytriazenes was analyzed using elemental analysis and their physical characteristics like melting point, crystal shape ... -
Synthesis and insecticidal activities of some selected hydroxytriazenes. Journal of Environmental Chemistry and Ecotoxicology
(2011-10)Eight hydroxytriazenes were synthesized and then subjected to spot tests. The composition of these hydroxytriazenes was analyzed using elemental analysis and their physical characteristics like melting point, crystal shape ... -
Synthesis, characterization and applications of transition metal-doped manganese oxide catalysts.
(2019)Manganese oxide octahedral molecular sieves exhibit good conductivity, tunable redox properties, high porosity and excellent thermal stability. Thus, these materials have several potential applications as cathodic materials ... -
Synthesis, characterization, and antimicrobial studies of half-sandwich η6-toluene ruthenium complexes with N,N′-bidentate ligands
(Taylor and Francis, 2020-07-29)Nine new complexes [(η6-C6H5-CH3)RuLCl]+(PF6)ˉ (where L = N,N′-bidentate ligand; (C5H4NCH = N-Ar) where Ar = 4-methylphenyl (C20H20ClF6N2PRu, 1); 3,4-dimethylphenyl (C21H22ClF6N2PRu, 2); 2,4,6-trimethylphenyl (C21H24ClF6N2PRu, ... -
Synthesis, Characterization, Electrochemical and Antibacterial Studies of Half-sandwich Ru(II) Complex of 4-fluoro-N-(2-pyridiylmethylene)-aniline Schiff Base
(2018-10)The 4-fluoro-N-(2-pyridiylmethylene)-aniline Schiff base ligand (L) and its complex has been synthesized and successfully characterized by 1H NMR, elemental analysis, UV/VIS spectroscopy. Electrochemical properties were ...