Zaiynutdinova Z.A.

KINETICS OF CHARGING INTERFACE OF BLOCKED ELECTRODE-SOLID ELECTROLYTE IN GALVANODYNAMIC AND POTENTIODYNAMIC MODES...

KINETICS OF CHARGING INTERFACE OF BLOCKED ELECTRODE-SOLID ELECTROLYTE
IN GALVANODYNAMIC AND POTENTIODYNAMIC MODES. CASE OF DELAYED DIFFUSION AND ADSORPTION-DESORBTION OF TWO PARTICLE OF DIFFERENT KIND

The kinetics of charging the blocked (inert) electrode/ solid electrolyte interface was studied by operational impedance method in the galvanodynamic and potentiodynamic modes. For calculations the equivalent electrical scheme of Jacobsen and West method was used which is suitable in the case of long time of charging. The participation of two different electrochemi-cally active particles in a process of delayed diffusion and adsorption-desorption was taken into account.

Key words: operational impedance, solid electrolyte, equivalent electrical scheme

2016, Т. 59, № 2, Стр. 41-45

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BEHAVIOR OF BLOCKING (INERT) ELECTRODE / SOLID ELECTROLYTE INTERFACE IN GALVANOGARMONIC CHARGING MODE. ...

BEHAVIOR OF BLOCKING (INERT) ELECTRODE / SOLID ELECTROLYTE INTERFACE
IN GALVANOGARMONIC CHARGING MODE. CASE OF DECELERATED DIFFUSION
AND ADSORPTION –DESORPTION OF TWO DIFFERENT KINDS OF PARTICLES

Electrochemical behavior of a cell with an interface of blocking electrode /solid elec-trolyte was studied in galvanogarmonic mode of charge. The possibility of application of simple and more graphic calculation technique and separation of electrochemical impedance schemes into active and reactive constituents was shown. The Jacobsen-West diffusion model was used as an equivalent electric circuit, which is valid for relatively large times or low AC frequencies. The plotting of dependences of active and reactive impedance components on AC frequency was used in order to estimate the values of parameters for studied equivalent electric circuits.

Key words: operational impedance, solid electrolyte, equivalent electric circuit, blocking elec-trode

2016, Т. 59, № 3, Стр. 59-64
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