Browsing Academic by Title
Now showing items 20125-20144 of 26170
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Synthesis and physicochemical studies of perovskite manganite La0.8Ca0.2Nn1 xCoxO3(0?x?0.3)
( Seoul National University 501-321 , 2017 , Article)The physicochemical properties of La0.8Ca0.2Mn1xCoxO nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1xCoxO nanopowders were synthesized by sol-gel method and morphologically and structurally ... -
Synthesis and Physicochemical Studies of Perovskite Manganite La0.8Ca0.2Nn1−xCoxO3 (0 ≤ x ≤ 0.3)
( The Korean Magnetics Society , 2017 , Article)The physicochemical properties of La0.8Ca0.2Mn1−xCoxO3 nanopowders as a function of Co content (x) have been investigated. La0.8Ca0.2Mn1−xCoxO3 nanopowders were synthesized by sol-gel method and morphologically and ... -
Synthesis and properties of electrodeposited Ni-B-CeO2 composite coatings
( Advanced Engineering Solutions , 2014 , Conference Paper)Ni-B coatings have decent properties like high hardness, wear resistance and decent anticorrosion properties which make them suitable for automotive, aerospace, petrochemical, textile and electronics industries. In the ... -
Synthesis and properties of electrodeposited Ni-B-Zn ternary alloy coatings
( Electrochemical Science Group , 2014 , Article)Ni-B coatings have decent properties like high hardness, wear resistance and decent anti-corrosion properties which make them suitable for automotive, aerospace, petrochemical, textile and electronics industries. Despite ... -
Synthesis and properties of electrodeposited Ni–B–CeO2 composite coatings
( Elsevier, Ltd , 2014 , Article)Ni–B coatings are extremely hard and wear resistant with decent anticorrosion properties which make them suitable for automotive, aerospace, petrochemical, plastic, optics, nuclear, electronics, computer, textile, paper, ... -
Synthesis and properties of HA/ZnO/CNT nanocomposite
( Elsevier Ltd , 2018 , Article)The goal of this study was to examine the tribomechanical properties of hydroxyapatite (HA)/ZnO and HA/ZnO/CNT composite ceramics (carbon nanotubes; with different ratios 0.5 wt%, 1.0 wt%, and 1.5 wt%). The composites were ... -
SYNTHESIS AND PROPERTIES OF NANOCRYSTALLINE BI-TE BASED THERMOELECTRIC MATERIALS FOR ENERGY APPLICATION
(2016 , Master Thesis)Thermoelectric phenomenon is the science associated with converting thermal energy into electricity based on the Seebeck effect. Bismuth telluride Bi2Te3 is currently considered to be the state-of-the art thermoelectric ... -
Synthesis and Properties of Novel NiBAlN Nanocomposite Coatings
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Degradation of materails due to corrosion has now emerged as an international challenge which is compelling the community to trace out some smart solutions on priority basis. Corrosion mitigation is not only important as ... -
Synthesis and properties of polyelectrolyte multilayered microcapsules reinforced smart coatings
( Springer New York LLC , 2019 , Article)The present research work focuses on the synthesis, characterization and properties of novel polyelectrolyte multilayered microcapsules used as smart additives in organic coatings for corrosion protection of steel parts. ... -
Synthesis and reactivity of 2-chloro-4-phenyl-6-p-tolyl-nicotinonitrile Towards some nucleophiles
( Qatar University , 1986 , Article)The synthesis and reaction of 2-Chloro-4-phenyl-6-p-tolyl- nicotinonitrile (I) with hydrazine hydrate, sodium azide and urea to give the corresponding hydrazino tetrazolopyridine and urea derivatives respectively, are ... -
Synthesis and Reactivity of Iron-Iridium Heterobimetallic Complexes Using Tridentate Phosphine Ligands
( Qatar University , 1994 , Article)Treatment of {Fe (CO)3 {(PPh2) 2 C=CH2}] with PPh2H gives the addition product [Fe (CO)3 {(PPh2) 2 CHCH2 PPh2}] (1). The uncoordinated phosphine group of complex 1 reacts with Ir4 (CO)12 to give mono-, di- and tri-substituted ... -
Synthesis And Reactivity Of Substituted Chromones
( Qatar University , 1992 , Article)The synthesis of 2-methyl-and 2-Styryl-6-bromo-7, 8-benzochromone and 2, 6-Dimethylchromone and their reactivity towards cyclo-addition reaction under Diels-Alder conditions and towards nucleophilic and electrophilic ... -
Synthesis And Spectroscopic Properties Of Some Mixed-Ligand Complexes Of Nickel (II), Copper (II), Zinc (II) And Palladium (II) With Biologically Active Nitrogen-Sulphur Containing Molecules
( Qatar University , 1990 , Article)The reaction of the biologically active complexes, chloro-2-acetylpyridinehyd-razinecarbothiopiperidinamide metal (II) and chloro-2-acetylpyridinecar-bothiomorpholinamide metal (11),^, (M=Ni (II), Cu (II), Zn (II) and Pd ... -
Synthesis and spectroscopic structural investigations of the charge-transfer complexes formed in the reaction of 2,6-diaminopyridine with π-acceptors TCNE, chloranil, and DDQ
( Elsevier , 2007 , Article)Molecular charge-transfer complexes of the donor 2,6-diaminopyridine (2,6-DAPY) with π-acceptors tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) and tetrachloro-p-benzoquinone(chloranil) were studied ... -
Synthesis and spectroscopic structural studies of the adducts formed in the reaction of aminopyridines with TCNQ
( Elsevier , 2006 , Article)The adducts 7,7-dicyano-8,8-di-m-aminopyridilequinodimethane and 7,7-dicyano-8,8-di-p-aminopyridilequinodimethane are formed by the reaction of the electron donors 3-aminopyridine (3APY) and 4-aminopyridine (4APY), ... -
Synthesis and Spectroscopic Studies ofAtenolol Derivatives with Enhanced Lipophilicity as Potential Prodrugs
( Qatar University , 2002 , Article)Atenolol, a selective pi-adrenoceptor blocking agent is characterized by its low bioavailability. A number of atenolol prodrugs were synthesized to improve its lipid solubility and hence bioavailability. These compounds ... -
Synthesis And Spectroscopic Studies On Some Ruthenium(II) Complexes
( Qatar University , 1994 , Article)The salt [RuCl2(CO)2ln has proved very useful precursor for the syntheses of a variety of organometallic complexes of transition metals. The compounds of dichlorodicarbonylruthenium(II) of the formula [RuCl2(CO)22L] or ... -
Synthesis of 2D-Mesoporous-Carbon/MoS2Heterostructures with Well-Defined Interfaces for High-Performance Lithium-Ion Batteries
( Wiley-VCH Verlag , 2016 , Article)[No abstract available] -
Synthesis of 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles and features of their NMR spectra
( Wiley , 2019 , Article)Two different methods leading to 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles were investigated. Reactions of 3-aminocrotonirile with substituted salicylaldehydes provided 5-oxo-5H-chromeno[3,4-c]pyridine-1-carbonitriles ... -
Synthesis of Aliphatic Acids from CO2 and Water at Efficiencies Close to the Photosynthesis Limit Using Mixed Copper and Iron Oxide Films
( American Chemical Society , 2019 , Article)The photocatalytic conversion of CO2 and water into value-added chemicals remains a great challenge. This study shows that uniformly mixed copper and iron oxide (CuO/CuFeO2; CFO) bulky heterojunction films are capable of ...
