Frumkin-melik-gaykazan model in the potentiodynamic and galvanodynamic regimes of functioning

• 作者: Radzhab A. Radzhabov Rizvan M. Guseynov
• 来源期刊: 材料工程研究(英文)
• 学科: 工学
• 关键词: Frumkin Melik Gaykazan MODEL indifferent ELECTROLYTE adsorbtion-desorbtion POTENTIODYNAMIC and galvanodynamic rejimes current DENSITY interface VOLTAGE
• 年，卷（期）: 2019,（1）
• 页码范围: 7-10
• 页数: 4页
• 分类号: TB

摘要

The main purpose of this article is to study the behavior of a metallic electrode in the electrolyte which contains a surface-active substance with the property of adsorbtion-desorbtion, in the galvanodynamic and potentiodynamic rejimes. The study of the electrochemical behavior of a metallic electrode is carried out by operational impedance method, based on the Ohms low on the interaction between the Laplace-transformed expression of current, voltage and complex resistance (impedance). It is obtained the analytical expression of interface voltage-time dependence in a solution which contains a surface-active indifferent substance with the property of adsorbtion-desorbtion;also it is obtained the analytical expression of current density-time dependence which is passing through electrochemical cell in potentiodynamic regime of functioning of the Frumkin- Melik-Gaykazan model. It is established that the relation between the interface metallic electrode-indifferent electrolyte with property of adsorbtion-desorbtion voltage in the galvanodynamic rejime has the character of second order parabola;the relation between current density which is passing through a cell and time in potentiodynamic rejime of functioning in the Frumkin-Melik-Gaykazan model has exponential character.