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Приказ резултата 11-20 од 97
In situ STM study of nanosized Ru and Os islands spontaneously deposited on Pt(111) and Au(111) electrodes
(Elsevier, 2004)
We provide an overview of structure and reactivity of selected bimetallic single crystal electrodes obtained by the method of spontaneous deposition. The surfaces that are described and compared are the following: Au(111)/Ru, ...
Electrochemical water splitting on zeolite supported platinum clusters
(Ecole Polytechnique Montreal, Montreal, 2004)
Platinum was incorporated into the cavities of NaX zeolite by impregnation/thermal decomposition technique, using Pt(II)-
acetylacetonate in acetone as an impregnating solution. The platinum-to-zeolite weight ratio amounted ...
Sesquiterpene lactones, lignans and flavones of Centaurea affinis
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
Aerial parts of Centaurea affinis Friv. were collected at Vlasina (east Serbia) in September 1998.
Kinetics of deep oxidation of n-hexane and toluene over Pt/Al2O3 catalysts: Platinum crystallite size effect
(Elsevier, 2004)
The kinetics of n-hexane and toluene complete oxidation has been studied over 0.12% Pt/Al 2 O 3 catalysts. Measurements were performed in an external recycle reactor. Reaction rates were measured as a function of temperature ...
Guaianolides from two subspecies of Amphoricarpos neumayeri from Montenegro
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
Quantitative H-1 NMR measurements revealed Delta(11(13)) sesquiterpene gamma-lactones as the main constituents (greater than or equal to 1% per weight of dried plant material) in the crude extracts of the aerial parts of ...
Sesquiterpene lactones from Cicerbita alpina
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
The roots of Cicerbita alpina (L.) Wallr. were collected from Mt. Komovi, Montenegro.
Effect of MnSOD (E. coli) on the relaxation caused by sodium nitroprusside on isolated rat renal artery / Efekat MnSOD (E. coli) Na relaksaciju izolovane renalne arterije pacova izazvanu natrijum-nitro-prusidom
(Serbian Chemical Society, 2004)
In this study themolecular foundation of nitric oxide induced relaxation of arteries, with or without endothelium, of normotensive and spontanously hypertensive ratswas re-examined. With this purpose in mind, the effects ...
Investigation of SiO/sub 2/ film on Si substrate by photoacoustic method
(Institute of Electrical and Electronics Engineers (IEEE)IEEE, 2004)
The effect of SiO/sub 2/ film on Si substrata (SiO/sub 2//Si) was investigated by photoacoustic spectroscopy. The amplitude and phase spectra were measured and analyzed in dependence on the wavelength of excitation optical ...
Stereoselective synthesis of (-)-cytoxazone and (+)-epi-cytoxazone
(Oxford : Pergamon-Elsevier Science Ltd, 2004)
Optically pure (-)-cytoxazone was synthesized, starting from methyl p-methoxycinnamate, in six steps and in 31%, overall yield. The required anti-aminoalcohol configuration was established by combining Sharpless asymmetric ...
The effect of electrochemically treated glassy carbon on the activity of supported Pt catalyst in methanol oxidation
(Elsevier, 2004)
Effect of electrochemical oxidation of glassy carbon on deposition of platinum particles and electrocatalytic activity of platinum supported on oxidized glassy carbon (Pt/GCOX) were studied for methanol oxidation in H2SO4 ...