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Prikaz rezultata 31-40 od 389
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. ...
Heavy Metal Accumulation and the Genotoxicity in Barbel (Barbus barbus) as Indicators of the Danube River Pollution
(Hindawi Ltd, London, 2012)
The aim of this study was to analyze 16 trace elements (Al, As, B, Ba, Cd, Co, Cr, Cu, Fe, Li, Mn, Mo, Ni, Pb, Sr, and Zn) in different barbel (Barbus barbus) tissues and to detect the presence of genotoxic effects in ...
Effect of preparation route on the microstructure and electrical conductivity of co-doped ceria
(Elsevier Sci Ltd, Oxford, 2013)
Dense Ce0.8Sm0.1Gd0.1O2-delta electrolytes were fabricated by sintering of CeO2 solid solutions which were prepared from metal nitrates and NaOH using self propagating room temperature synthesis (SPRT). Three different ...
Characterisation of phenol oxidase and peroxidase from maize silk
(Wiley-Blackwell, Hoboken, 2010)
Silk of some maize genotypes contains a high level of phenolics that undergo enzymatic oxidation to form quinones, which condense among themselves or with proteins to form brown pigments. Two phenolic oxidizing enzymes, ...
Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology
(Springer, Dordrecht, 2012)
Zinc oxide powders with different morphologies and grain sizes were synthesized using solvothermal methods from ethanolic zinc acetate solutions in the presence of lithium hydroxide. The influence of the temperature and ...
Electrical properties of niobium doped barium bismuth-titanate ceramics
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
BaBi4Ti4-5/4xNbxO15 (BBNTx, x = 0.0.05, 0.15, 0.30) ceramics have been prepared by solid state method. XRD data indicate the formation of single-phase-layered perovskites for all compositions. SEM micrographs suggest that ...
Influence of electrodeposition parameters of Ni-W on Ni cathode for alkaline water electrolyser
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
In this study, different Ni-W coatings, obtained by cheap and technologically simple electrodeposition method, were examined as potential electrocatalysts for the hydrogen evolution reaction (HER). All electrodepositions ...
Transport Parameters of Inkjet Printed Nanoparticle Silver on Polyimide Substrate Measured at Room and Liquid Nitrogen Temperatures
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2013)
This brief presents the transport parameters of silver layers on a polyimide substrate fabricated by an inkjet printing technology using nanoparticle inks with 20 wt% and 40 wt% silver. All the electrical characteristics ...