Once More About the Analysis of the Ag / AgI Electrode Impedance
نویسندگان
چکیده
The reliability of different electrode admittance equations in the case of the Ag/Ag I electrode is critically discussed. It is shown that the admittance equation already derived for the' metal arnalgam/metal-Ion reversible electrode reaction coupled with reactant adsorption offers some advantages compared to the admittance equation for the reversible electrode reaction on the metal/metal-ion electrode. New results of impedance measurements of the Ag/Ag I electrode are reported.
منابع مشابه
On the Warburg Parameter of the Ag/AgI Electrode
The possible orrgins of frequent deviations from the calculated and experimentally obtained values of the Warburg parameter of the Ag/AgI electrode are discussed. Following the considerations of possible conditions for classical Warburg impedance to appear in solid AgI, it is suggested that the overall Warburg impedance of the Ag/AgI electrode could be considered as the sum of the Warburg imped...
متن کاملNote on the Analysis of the Ag / Ag I Electrode Impedance
Interpretation of the impedance (or admittance) spectrum of the silver/ /silver iodide electrode in aqueous solution has been amatter of dispute for some timel-4 and, considering the recent paper by Kvastek and Horvat," it stil is. There are a number of basic aspects which seem to obscure the discussion and the present note is intended to point them out explicitly. First of all, it will be usef...
متن کاملElectrochemical fabrication of polypyrrole nanofibers and their characterization
Polypyrrole (PPy) nanofibers have been fabricated on glassy carbon electrode (GCE) usingelectrochemical technique. Electropolymerization of pyrrole (Py) for the fabrication of PPy nanofiberswas occurred on GCE by applying a fixed potential of about 0.85 V for 120 sec in a mild basic solutioncontaining sodium carbonate and sodium perchlorate. In the mild basic media, the monomer, Py, isoxidized ...
متن کاملChemically-inactive interfaces in thin film Ag/AgI systems for resistive switching memories
AgI nanoionics-based resistive switching memories were studied in respect to chemical stability of the Ag/AgI interface using x-ray absorption spectroscopy. The apparent dissolution of Ag films of thickness below some tens of nanometers and the loss of electrode/electrolyte contact was critically addressed. The results evidently show that there are no chemical interactions at the interface desp...
متن کاملElectrical and optical investigations in Te–Ge–Ag and Te–Ge–AgI chalcogenide glasses
(GeTe4)100-xAgx and (GeTe4)100-x(AgI)x glasses were prepared by a melting-quenching method. The glass electrical conductivity was investigated by both electrochemical impedance spectroscopy at different temperatures from 283K to 333K and four-probe method at room temperature (293K). Meanwhile, as a major factor determining the electrical conductivity of a solid, optical band gap was also studie...
متن کامل