Pretraživanje
Prikaz rezultata 1-10 od 86
Hydrogen evolution on gold electrode in the presence of lead adatoms
(Pergamon Press Ltd., 1979)
An analysis of elementary processes of water desorption from zeolites of type aPart. I. Zeolites with monovalent counterions: undefined
(Elsevier, 1976)
Complex DSC curves of water desorption from LiA, NaA and KA zeolites were resolved into the most probable elementary curves. The activation energies and transition temperatures of corresponding elementary processes were ...
Effect of codeposition of polymer on the morphology of electrodeposited copper
(Kluwer Academic Publishers, 1979)
Poly(4-vinyl pyridine-co-methyl methacrylate), which is soluble in water in its protonated form and insoluble as a neutral molecule, has been synthesized and introduced into an acid bath for copper deposition. Potential-sweep ...
Hydrogen evolution on platinum in the presence of lead, cadmium and thallium adatoms
(Pergamon Press, 1979)
Hydrogen evolution on rotating platinum electrode has been measured in the presence of Pb, Tl and Cd adatoms. At low coverages of these adatoms (θM < 0.5) the mechanism of H2 evolution is the same as that for Pt, giving ...
Optical and electrochemical study of electrocatalysis by foreign metal adatoms. Oxidation of formic acid on rhodium
(Elsevier Sequoia S.A., 1979)
Specular reflectance spectroscopy, in conjunction with linear potential sweep voltammetry, has been used in studying catalytic effects of Pb and Cd adatoms on the oxidation of HCOOH on Rh. The intermediates formed in that ...
The polarographic and chronopotentiometric investigation of the copper(II)-ethylenedithioldiacetic acid system
(Elsevier, 1975)
The electrode process of the Cu(II)-ethylenedithioldiacetic acid chelatereduction occurs in two one-electron reduction steps. The reversibility of the first polarographic wave was confirmed by microcoulometry at constant ...
A novel procedure for the aromatization of ring a in 19-nortestosterone
(Elsevier, 1977)
A convenient, 40% overall yield synthesis of 2,3,17β-triacetoxy-1,3,5(10)-estratriene is described, which involves epoxidation of 19-nortestosterone and subsequent acetylation, lead tetra-acetate acetoxylation of the ...
Remote functionalisation by ferrous ion-cupric ion induced decomposition of alkyl hydroperoxides
(Pergamon Press, 1979)
By decomposition of alkyl hydroperoxides 1-8 with ferrous sulfate-cupric acetate reagent, intramolecular functionalisation of remote non-activated C atom takes place and unsaturated alcohols with double bond mainly at ...
Investigation of the anodic processes on platinum in perchlorate and chlorate solutions by linear sweep voltammetry using the rotating double-ring electrodes
(Elsevier, 1976)
There have been several attempts to elucidate events occurring on platinum immersed into pure perchloric acid solutions, when submitted to high anodic polarisation. The polarisation curve was shown to exhibit two levels, ...
Investigation of occluded and nonoccluded synthetic zeolites. Base-catalyzed demethylation of tetramethylthionine-methylene blue on a denitrated zeolite
(Elsevier, 1972)
The adsorption of methylene blue from aqueous and non-aqueous media onto the zeolite NaA, the occluded zeolite NaANaNO3 and the denitrated zeolite NaANa2O has been investigated. Adsorption isotherms have a standard form ...