Current–time and current–potential profiles in electrochemical film production. (II) Theoretical current–potential curves

2004 ◽  
Vol 573 (1) ◽  
pp. 37-42 ◽  
Author(s):  
P.C.T. D’Ajello ◽  
A.Q. Schervenski
Keyword(s):  
Film Production ◽  
Current Time ◽  
Current Potential ◽  
Potential Curves

The Relationship Between Repassivation Behavior and Pitting Corrosion for Ti and Ti6AI4V

CORROSION ◽  
1978 ◽  
Vol 34 (12) ◽  
pp. 437-442 ◽  
Author(s):  
H. -J. RAETZER-SCHEIBE
Keyword(s):  
Corrosion Behavior ◽  
Pitting Corrosion ◽  
Metallic Surface ◽  
Current Time ◽  
The Relationship ◽  
Current Potential ◽  
Potential Curves

Abstract The characteristic pitting potentials of Ti and Ti6AI4V were determined by measurement of potentiodynamic current-potential curves in solutions of 1N NaCl, 1N Nal, and 1N NaBr. Under the same conditions current-time curves were measured for various potentials after generation of a new metallic surface. By means of these curves, one can study the repassivation behavior of materials. The comparison between the potential of pit repassivation and the repassivation/nonrepassivation potential shows a relatively good correlation. The determination of the critical repassivation potentials enables us to predict the pitting corrosion behavior.

scholarly journals Redox mediation at poly(o-aminophenol) coated electrodes: Mechanistic diagnosis from steady state polarization curves

2018 ◽  
Author(s):  
Gabriel Ybarra ◽  
Carlos Moina ◽  
María Inés Florit ◽  
Dionisio Posadas
Keyword(s):  
Steady State ◽  
Polarization Curve ◽  
Experimental Measurements ◽  
Steady State Current ◽  
Thermodynamical Parameters ◽  
Reduction And Oxidation ◽  
Mediated Reduction ◽  
Coated Electrodes ◽  
Current Potential ◽  
Potential Curves

<p class="PaperAbstract"><span lang="EN-US">In this work, the mediated reduction and oxidation of Fe(CN)<sub>6</sub><sup>3-/4-</sup> and Fe<sup>3+ </sup>in poly(o-aminophenol) coated electrodes is analyzed by means of diagnosis diagram based on the features of steady state current-potential curves. This analysis allows to identify the current determining process and to reproduce the experimental characteristics of the polarization curve from the relevant kinetic and thermodynamical parameters with a minimum amount of experimental measurements. </span></p>

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