Претраживање
Приказ резултата 1-10 од 14
AC Impedance tracking of glassy carbon activation
(Serbian Chemical Society, Belgrade, 2010)
Carbon materials, due to their physical and chemical properties, have found wide application in different electrochemical systems. They are often used as substrates for supercapacitors and different types of electrocatalysts. ...
Effects of UPD adlayer of foreign metals on the oxidation of ethanol on carbon supported Pt-based catalysts
(Serbian Chemical Society, Belgrade, 2010)
Oxidation of ethanol was studied at SnUPD, RuUPD and RhUPD modified and unmodified Pt/C, Pt3Sn/C and Pt3Ru2/C catalysts. All unmodified catalysts were characterized by XRD. Potentiodynamic and chronoamperometric measurements ...
Characterization of carbon fibrous materials obtained from tree wastes
(Serbian Chemical Society, Belgrade, 2010)
Carbon fibres can be obtained in rather wide variety of structures, compositions and properties, depending on the nature of the organic precursor and conditions of the process applied in their preparation. In order to get ...
Ethanol oxidation at Pt-based alloys and UPD modified Pt/C catalysts
(Serbian Chemical Society, Belgrade, 2010)
Activity of two alloys, Pt3Sn/C and Pt3Ru2/C, was compared with the activity of Pt/C modified with corresponding amounts of SnUPD (~25 %) and RuUPD (~40 %) in overall oxidation of ethanol. Pt3Sn/C, Pt3Ru2/C and Pt/C catalysts ...
Non-linear frequency response analysis of the kinetics of electrochemical reactions: a case study – ferrocyanide oxidation kinetics
(Serbian Chemical Society, Belgrade, 2010)
In general, electrochemical (EC) systems are non-linear, which means they respond nonlinearly to a frequency-dependent periodic input perturbation of high amplitude imposed around a steady-state. In addition, the kinetics ...
The electrochemical synthesis of different Ag/PVP nanocomposites
(Serbian Chemical Society, Belgrade, 2010)
The potential use of Ag/poly(N-vinyl-2-pyrrolidone) (PVP) nanocomposites is in wound dressings or soft tissue implants, where Ag nanoparticles (AgNPs) serve as the antimicrobial agent. Ag/PVP nanocomposites were electrochemically ...
Effect of parameters of pulsating current (PC) regimes on morphology of electrodeposited copper in hydrogen co-deposition range
(Serbian Chemical Society, Belgrade, 2010)
The most often employed electrolytes for the electrodeposition of copper are those based on aqueous solutions of sulfuric acid (H2SO4) and cupric sulfate (CuSO4). There is an ionic equilibrium of a lot of species in the ...
Oxidation of formic acid on bulk and nanosized Pt-Co alloys
(Serbian Chemical Society, Belgrade, 2010)
Bulk Pt3Co and nanosized Pt3Co and PtCo alloys supported on XC-72 high area carbon were investigated as the electrocatalysts for the oxidation of formic acid. Cyclic voltammetry in 0.1 M HClO4 and stripping voltammetry of ...
The reduction of nitroaromatic compaunds on the platinum electrode
(Serbian Chemical Society, Belgrade, 2010)
The reduction of 2,4,6-trinitrotoluene (TNT),as an example of nitroaromatic compounds with three nitro groups, was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with ...
Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite
(Serbian Chemical Society, Belgrade, 2010)
Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-
pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVP
hydrogels, crosslinked by gamma-irradiation, were ...