Претраживање
Приказ резултата 1-10 од 224
Effect of tungsten carbide in carbon Pt catalyst support on electrochemical oxygen reduction in acid solution / Uticaj prisustva volfram-karbida u ugljeničnom nosaču Pt nanočestica na elektrohemijsku redukciju kiseonika u kiselom rastvoru
(Association of Chemical Engineers of Serbia, 2013)
Tungsten carbide was synthesized by calcination of carbon cryogel with embedded tungsten in a form of metatungstate. This material was used as a support for Pt nanoparticles. XRD pattern of W-C support indicated the presence ...
Electrocatalytic properties of Pt-Bi electrodes towards the electro-oxidation of formic acid / Elektrokatalitička svojstva Pt-Bi elektroda u oksidaciji mravlje kiseline
(Serbian Chemical Society, 2013)
Formic acid oxidation was studied on two Pt-Bi catalysts, i.e., Pt2Bi and polycrystalline Pt modified by irreversible adsorbed Bi (Pt/Biirr) in order to establish the difference between the effects of Biirr and Bi in the ...
Kinetics of sunflower and used vegetable oil methanolysis catalyzed by CaO center dot ZnO
(Elsevier Sci Ltd, Oxford, 2013)
The kinetics of heterogeneous methanolysis of sunflower oil and used vegetable oil were studied at different temperatures, ranging from 60 to 96 degrees C using CaO center dot ZnO as catalyst (2 wt% on the basis of oil) ...
Effect of four lichen acids isolated from Hypogymnia physodes on viability of rat thymocytes
(Oxford : Pergamon-Elsevier Science Ltd, 2013)
Four lichen acids, physodalic acid (F1), physodic acid (F2), 3-hydroxyphysodic acid (F3), and isophysodic acid (F4), were isolated from Hypogymnia physodes methanol extract using preparative reversed-phase high performance ...
N-{[2-(4-Phenyl-piperazin-1-yl)-ethyl]-phenyl}-arylamides with Dopamine D-2 and 5-Hydroxytryptamine 5HT(1A) Activity: Synthesis, Testing, and Molecular Modeling
(Wiley-V C H Verlag Gmbh, Weinheim, 2013)
The ratio of affinities toward the dopamine D-2 and the 5-hydroxytryptamine 5-HT1A receptors is one of the important parameters that determine the efficiency of antipsychotic drugs. Here, we present the synthesis of ortho-, ...
Degradability of n-alkanes during ex situ natural bioremediation of soil contaminated by heavy residual fuel oil (mazut)
(Serbian Chemical Soc, Belgrade, 2013)
It is well known that during biodegradation of oil under natural geological conditions, or oil pollutants in the environment, degradation of hydrocarbons occurs according to a well-defined sequence. For example, the major ...
Microstructure and properties of poly(urethane-siloxane)s based on hyperbranched polyester of the fourth pseudo generation
(Elsevier Science Sa, Lausanne, 2013)
Poly(urethane-siloxane) networks based on hydroxyethoxy propyl terminated poly(dimethylsiloxane) (PDMS) as the soft segment and 4,4'-methylenediphenyl diisocyanate (MDI) and two hyperbranched polyesters with different core ...
Surface and thermomechanical characterization of polyurethane networks based on poly(dimethylsiloxane) and hyperbranched polyester
(Budapest University of Technology, 2013)
Two series of polyurethane (PU) networks based on Boltorn (R) hyperbranched polyester (HBP) and hydroxyethoxy propyl terminated poly(dimethylsiloxane) (EO-PDMS) or hydroxy propyl terminated poly(dimethylsiloxane) (HP-PDMS), ...
Comparative analysis of rhamnolipids from novel environmental isolates of Pseudomonas aeruginosa
(Journal of Surfactants and Detergents, 2013)
A comparative analysis of rhamnolipids from environmental isolates of Pseudomonas aeruginosa was undertaken to evaluate strain-specific rhamnolipid fingerprints obtained under different growth conditions. Environmental ...
Hydrogen evolution on Au(111) catalyzed by rhodium nanoislands
(Elsevier Science Inc, New York, 2013)
Pronounced catalysis of hydrogen evolution reaction (HER) by rhodium nanoislands spontaneously deposited on Au(111) has been observed. Different Rh/Au(111) nanostructures were characterized ex situ by both height and phase ...