Autor:	V. P. Lukovtsev, Z. A. Rotenberg, N. V. Lukovtseva
Rok vydání:	2002
Předmět:	Diffusion layer Convection Natural convection Chemistry Diffusion Electrochemistry Analytical chemistry Thermodynamics Diffusion current Conductivity Thermal conduction Isothermal process
Zdroj:	Russian Journal of Electrochemistry. 38:345-348
ISSN:	1023-1935
DOI:	10.1023/a:1015323518104
Popis:	The diffusion conduction σ = di /dη (where i is the current and η is the overvoltage) in reversible system [Fe(CN)6]3–/4– is measured by the electrochemical impedance method under isothermal and nonisothermal conditions of natural convection. Platinum disk electrodes 3 mm and 20 μm in diameter are used. For a macroelectrode under isothermal conditions, σ passes through a maximum near equilibrium and tends to zero at η → 0. Under nonisothermal conditions and for a microelectrode under isothermal conditions, σ achieves a maximum near equilibrium. These data correlate with the η dependence of the diffusion layer thickness and quantitatively agree with theory.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d29fed90ab6716de45a0e101abdf006a https://doi.org/10.1023/a:1015323518104 Zobrazit plný text záznamu Full text from SpringerLink