Претраживање
Приказ резултата 81-90 од 218
Mechanism and kinetics of the electrosorption of sulphate anions on the (111) face of silver / Mehanizam i kinetika elektrosorpcije sulfatnih anjona na (111) pljosni srebra
(Belgrade : Serbian Chemical Society, 1999)
The processes of adsorption of sulphate anions onto the (111) face of silver have been investigated by analysis of the cyclic voltammetry and potcntiostatic pulse results. It was shown, by fitting the experimentally recorded ...
Properties of activated alumina obtained by flash calcination of gibbsite
(Elsevier, 1992)
On exposing gibbsite, with granulation below 10 μm to flash calcination of 0.5 s in the regime of pneumatic transport and at temperatures above 883 K, a microcrystalline material with a high degree of amorphization was ...
Fulvic acid characterization in an alluvial sediment sequence: differences between clay and sand environments
(Elsevier, 1992)
Fulvic acids (FAs) from the whole Quaternary sequence (to a depth of 26 m) of the alluvial sediment of the Sava river (taken from a site in Novi Beograd, Belgrade, Yugoslavia) were investigated with the aim of examining ...
Standard potential values of "cyanide-sensitive" silver iodide and silver sulphide ion-selective electrodes
(Analytica Chimica Acta, 1990)
It is shown that the equation for the potentials of semiconductive sulphide membranes given by Sato 25 years ago is valid also for the calculation of E0 values of "cyanide-sensitive" ion-selective electrodes. The only ...
Test of the validity of some kerogen models based on oxidative degradation
(Elsevier, 1990)
Molecular models of considerable complexity have been proposed recently for type I, II and III kerogens. Here, we describe the amount and type of carboxylic acids that one would expect to result from their multistep alkaline ...
Oxygen reduction on Au(111) and vicinal Au(332) faces: A rotating disc and disc-ring study
(Elsevier, 1994)
The kinetics of oxygen reduction on the Au(111) surface in acidic solution has been re-examined by means of a rotating disc electrode technique. Its vicinal Au(332) = Au[6(111) × (111)] surface has been chosen to examine ...
A New Approach to Metal Electrodeposition at a Periodically Change Rate. Part I. The Reversing Overpotential Method
(Elsevier, 1999)
A method of increasing the apparent deposition exchange current density value in reversing overpotential (RO) copper electrodeposition is described. In pulsating overpotential (PO) metal electrodeposition, the current ...
Examination of the kinetics of Zr1.02Ni0.98 alloy hydriding / Ispitivanje reakcije hidriranja legure Zr1.02Ni0.98
(Belgrade : Serbian Chemical Society, 1999)
The hydriding kinetics of Zr1.02Ni0.98 alloy was examined in dependence on the number of hydriding/dehydriding cycles. The rate constants relating to three subsequent hydriding procedures of an alloy sample, at five ...
The effect of the pause-to-pulse ratio on the morphology of metal powder particles electrodeposited by square-wave pulsating overpotential
(Switzerland : Springer Nature, 1991)
It is well known that the deposition conditions such as
bath composition, hydrodynamic regime, temperature,
current density, exhibit a strong effect on the grain size
and the morphology of electrodeposited metal ...
Oxidative hydrolysis and acid-catalyzed rearrangement of steroidal isoxazolidines
(Elsevier, 1991)
Treatment of steroidal isoxazolidines 3a, 3b and 5b with N-methylhydroxylamine hydrochloride in boiling ethanol-pyridine (1:1) solution results in elimination of the CH3NH2fragment, affording products of oxidative hydrolysis ...