Претраживање
Приказ резултата 21-30 од 78
Fundamental aspects of plating technology I: The determination of the optimum deposition current density
(Elsevier, 1983)
It is shown that the optimum plating overpotential or the optimum current density is determined by the upper limit of validity of the Tafel relationship for the deposition process.
Optical and electrochemical study of underpotential deposition of bismuth on gold electrode
(Elsevier, 1980)
The underpotential deposition of Bi on Au has been investigated by specular reflectance spectroscopy and linear sweep voltammetry. The spectral dependance of ΔR/R caused by Bi adatoms has been determined and compared with ...
Underpotential deposition of metals in the presence of surfactants: Deposition of thallium and lead on an Ag (100) electrode in the presence of sodium dodecyl sulphate
(Elsevier, 1985)
In this work sodium dodecyl sulphate (SDS) was used to modify the surface of an Ag (100) single crystal electrode. Both the underpotentlal deposition (UPD) and overpotential deposition (OPD) of thallium and lead were studied ...
Structural effects in electrocatalysis: oxidation of formaldehyde on gold and platinum single crystal electrodes in alkaline solution
(Elsevier, 1984)
The oxidation of formaldehyde in sodium hydroxide solution has been studied on platinum and gold single crystal electrodes with the (111), (110) and (100) orientations. There is apparently no structural sensitivity of this ...
Fundamental aspects of pulsating current metal electrodeposition IX: The prevention of spongy deposit formation on inert substrates
(Elsevier, 1984)
It is shown that spongy deposits are obtained under d.c. conditions and that compact deposits are obtained in pulsating current (PC) deposition with high pause-to-pulse ratios at the same average current density and ...
Sesquiterpene lactones from Inula helenium
(Pergamon Press, 1989)
The isolation of 11(13)-dehydrocriolin [a germacranolide also known as 11(13)-dehydroivaxillin], 2α-hydroxyalantolactone, 4α,5α-epoxy-10α,14-H-inuviscolide (the major component) and carabrone from the aerial parts of Inula ...
Multistage alkaline permanganate degradation of a type-III kerogen
(Elsevier, 1985)
In order to obtain evidence on the relationship between kerogen structural types and the quantity and nature of their oxidation products, the products of a multistage (13 step) alkaline permanganate degradation of type-III ...
Generalized model of the isothermal vapor phase epitaxy of (Hg,Cd)Te
(American Instituts of Physics, 1987)
A generalized model of the isothermal vapor phase epitaxy of (Hg,Cd)Te is presented, which for the first time enables us to predict the compositional profiles of the layers in dependence on growth parameters (temperature ...
Deuterium‐induced 13C nuclear magnetic resonance isotope shifts and 13C-2H couplings for signal assignments and determination of deuteration site in cyclooctanone
(Wiley, 1981)
Unambiguous signal assignments in the 13C spectra of monodeuterated cyclooctanones derived from the lead tetraacetate or silver oxide/bromine oxidations of the corresponding 1‐monodeutero‐alcohols have been obtained from ...
Abnormal polarization change in anodic dissolution of aluminium at high current densities
(Elsevier, 1981)
Two types of anodic oxidation of aluminum have been recognized in the past: a) oxidation requiring a steady increase of voltage drop across the interface up to a few hundred volts in order to overcome the resistance of ...