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Приказ резултата 31-40 од 1706
Service life test of non-noble metal composite cathodes for hydrogen evolution in sodium hydroxide solution
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
In this work polarization characteristics and "service life" test of the non-noble metal composite coatings Ni-MoOx and Ni-MoO2 for hydrogen evolution reaction (HER) in 32 wt.% NaOH at 90 degrees C were investigated and ...
Phase identification in electrodeposited Ag-Cd alloys by anodic linear sweep voltammetry and X-ray diffraction techniques
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
During electrodeposition of Ag-Cd alloy coatings phenomena of self-organization and formation of spatio-temporal structures can be observed. The difficulties in the determination of the local phase composition in the ...
An attempt to predict the mechanism of Mo-Ni-O powders electrodeposition from the results of their TEM analysis
(Pergamon-Elsevier Science Ltd, Oxford, 2010)
The Mo-Ni-O powders were electrodeposited from ammonium sulfate containing electrolytes with different Mo/Ni ion concentration ratios. The phase composition of these powders was investigated using TEM. EDS and XRD analysis. ...
A strain of phytoplasma related to 16SrII group in Picris hieracioides L. in Serbia
(Alma Mater Studiorum, Univ Bologna, Bologna, 2011)
During epidemiological survey for phytoplasmas in association with agricultural crops in Serbia, a new species of common weed has been detected to harbor phytoplasmas in Serbia. In 2010, a total of 38 samples of Picris ...
Study of the covalently immobilized amyloglucosidase on macroporous polymer by mathematical modeling of the pH optima
(Wiley-Blackwell, Hoboken, 2012)
BACKGROUND: A totally new approach has been applied for mathematical modeling of the enzyme activity/pH relationship, for quantification and distribution of enzyme activity in and out of carrier pores. This is a very simple ...
Effectiveness of phenoxyl radicals generated by peroxidase/H2O2-catalyzed oxidation of caffeate, ferulate, and p-coumarate in cooxidation of ascorbate and NADH
(Springer Japan Kk, Tokyo, 2008)
The rate of ascorbate and nicotinamide adenine dinucleotide plus hydrogen (NADH) cooxidation (i.e., their nonenzymic oxidation by peroxidase/H2O2-generated phenoxyl radicals of three hydroxycinnamates: caffeate, ferulate ...
Comparative study of CeO2 nanopowders obtained by the hydrothermal method from various precursors
(Elsevier Sci Ltd, Oxford, 2015)
The effects of common precursors used in the synthesis of CeO2 nanopowders were investigated, and the structural and spectral properties of the resulting products were compared. Two cerium (III) salts, i.e., Ce(NO3)(3)center ...
Ispitivanja mogućnosti korišćenja domaćih kaolinskih glina za proizvodnju metakaolina / Research of possibilities for use domestic kaolin clays for production of metakaolin
(Savez hemijskih inženjera, Beograd, 2009)
U oblasti građevinarstva, u svetu se intenzivno istražuju mogućnosti primene novih materijala kojima se može supstituisati deo klinkera u Portland cementu ili deo cementa u betonskim mešavinama. Novi materijali treba da ...
Microstructural and compositional aspects of ZnO-based varistor ceramics prepared by direct mixing of the constituent phases and high-energy milling
(Elsevier Sci Ltd, Oxford, 2008)
ZnO-based varistor samples were prepared by the direct mixing of the constituent phases (DMCP) and sintering at 1100 degrees C for 2 h. The influence of the starting powder mixture's composition - the amounts of the ...
The effect of hydrogen co-deposition on the morphology of copper electrodeposits. II. Correlation between the properties of electrolytic solutions and the quantity of evolved hydrogen
(Elsevier Science Sa, Lausanne, 2008)
Formation of irregular deposits by electrodeposition from acid sulfate solutions of various H2SO4 concentrations was examined by the determination of the average current efficiency of hydrogen evolution and by the scanning ...