Претраживање
Приказ резултата 31-40 од 150
Polypyrrole as possible electrode materials for the aqueous-based rechargeable zinc batteries
(Oxford : Pergamon-Elsevier Science Ltd, 2008)
Polypyrrole (PPy) thin film electrode was galvanostatically synthesized and characterized in 0.1 M HCl on graphite electrode as cathode materials for the aqueous-based rechargeable zinc batteries. The charge/discharge ...
Chiral catalysts in the stereoselective synthesis of pyrrolidine derivatives via metallo-azomethine ylides
(Oxford : Pergamon-Elsevier Science Ltd, 2005)
Intensive research over the last few decades in the area of the cycloaddition reactions of metallo-azomethine ylides has resulted, in recent years, in the development of a number of highly diastereo- and enantioselective ...
Characterization of electrochemically synthesized PANI on graphite electrode for potential use in electrochemical power sources
(Materials Chemistry and Physics, 2009)
Polyaniline (PANI) on graphite electrode was synthesized electrochemically under galvanostatic condition at current density of 2.0 mA cm-2 from aqueous solution of 1.0 mol dm-3 HCl and 0.25 mol dm-3 aniline monomer. ...
Tetraoxane antimalarials and their reaction with Fe(II)
(American Chemical Society (ACS), 2006)
Mixed tetraoxanes 5a and 13 synthesized from cholic acid and 4-oxocyclohexanecarboxylic acid were as active as artemisinin against chloroquine-susceptible, chloroquine-resistant, and multidrug-resistant Plasmodium falciparum ...
Characterization of electrodeposited powders of the system Ni-Mo-O
(Oxford : Pergamon-Elsevier Science Ltd, 2008)
The electrodeposition of the Ni-Mo-O alloy powders from ammonium chloride containing electrolytes for different Ni/Mo ions concentration ratios was investigated by the polarization measurements. The morphology, chemical ...
Methanol electrooxidation on supported Pt and Pt-Ru catalysts in acid and alkaline solutions
(Elsevier, 2002)
The kinetics of methanol oxidation on supported 47.5 wt.% Pt and 54 wt.% PtRu (with nominal Pt:Ru ratios of 2:3) catalysts are measured in 0.5 M H2SO4 and 0.1 NaOH at 295 and 333 K using thin-film rotating disk electrode ...
Synthesis, characterization and antimicrobial activity of Co(II), Zn(II) and Cd(II) complexes with N-benzyloxycarbonyl-S-phenylalanine
(Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux, 2009)
In this paper the first complexes of M2+ ions (M2+ = Zn2+, Cd2+ and Co2+) with N-benzyloxycarbonyl-S-phenylalaninato ligand (1-3) are described. The new complexes were characterized by means of elemental analysis, IR and ...
Mechanism of complex formation between [AuCl4]- and l-methionine
(Oxford : Pergamon-Elsevier Science Ltd, 2009)
The kinetics of the reaction between the tetrachloroaurate(III) ion and l-methionine (l-Met) (0.1 M HClO4, pH 1.0-2.5) have been studied spectrophotometrically using a stopped-flow technique at different temperatures. ...
Morphology investigation of mechanically activated ZnO-SnO2 system
(Elsevier Sci Ltd, Oxford, 2008)
Powder mixtures of zinc oxide and tin oxide in the molar ratio, ZnO:SnO2 = 2:1, were mechanically activated in a planetary ball mill in the time intervals of 0-160 min. The adsorption-desorption isotherms, specific surface ...
Synthesis and characterization of new Pt(II) and Pd(II) complexes with 2-quinolinecarboxaldehyde selenosemicarbazone: Cytotoxic activity evaluation of Cd(II), Zn(II), Ni(II), Pt(II) and Pd(II) complexes with heteroaromatic selenosemicarbazones
(Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux, 2009)
New complexes of Pt(II) and Pd(II) with 2-quinolinecarboxaldehyde selenosemicarbazone were synthesized and characterized by elemental analysis, NMR and IR spectroscopy and molar conductivity measurements. The assumed ...