Pattern Formation in Globally Coupled Electrochemical Systems with an S-Shaped Current-Potential Curve

2000 ◽  
Vol 104 (31) ◽  
pp. 7545-7553 ◽  
Author(s):  
Katharina Krischer ◽  
Nadia Mazouz ◽  
Georg Flätgen
Keyword(s):  
Pattern Formation ◽  
Potential Curve ◽  
Electrochemical Systems ◽  
Current Potential

Some Errors in Linear Polarization Measurements and Their Correction

CORROSION ◽  
1974 ◽  
Vol 30 (3) ◽  
pp. 92-96 ◽  
Author(s):  
FLORIAN MANSFELD
Keyword(s):  
Polarization Curve ◽  
Linear Polarization ◽  
Corrosion Potential ◽  
Corrosion Current ◽  
Potential Curve ◽  
Polarization Measurements ◽  
Tafel Slopes ◽  
The Relationship ◽  
Current Potential

Abstract The errors due to the use of the approximation Icorr′ = B′ΔI, where B′ depends on anodic and cathodic Tafel slopes, in commercial corrosion current meters is shown to be due to the nonlinearity of the current-potential curve in the vicinity of the corrosion potential. These errors are calculated for various combinations of Tafel slopes. It is proposed to use the relationship Icorr = κΔI, where κ depends on Tafel slopes, sign, and magnitude of polarization. The values of κ are tabulated for various combinations of Tafel slopes and polarization of +10 and −10 mV. The proposed procedure leads to correct values of corrosion currents independent of the degree of nonlinearity of the polarization curve.

scholarly journals Study on the Analysis of the Current-potential Curve of RDE in Electrocatalytic Reactions

2020 ◽  
Vol 66 (2) ◽  
pp. 77-84
Author(s):  
Yuko Yokoyama ◽  
Kohei Miyazaki ◽  
Takeshi Abe ◽  
Kenji Kano
Keyword(s):  
Potential Curve ◽  
Current Potential ◽  
Electrocatalytic Reactions
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