The Calculation of Electrochemical Kinetic Parameters from Polarographic Current-Potential Curves

1961 ◽  
Vol 83 (24) ◽  
pp. 4903-4906 ◽  
Author(s):  
Louis Meites ◽  
Yecheskel Israel
Keyword(s):  
Kinetic Parameters ◽  
Polarographic Current ◽  
Current Potential ◽  
Potential Curves

THE DETERMINATION OF KINETIC PARAMETERS OF REDOX REACTIONS FROM CURRENT–POTENTIAL CURVES

1959 ◽  
Vol 37 (1) ◽  
pp. 238-246 ◽  
Author(s):  
J. E. B. Randles
Keyword(s):  
Kinetic Parameters ◽  
Redox Reactions ◽  
Mercury Electrode ◽  
Dropping Mercury Electrode ◽  
Mercury Electrodes ◽  
Rotating Electrodes ◽  
Current Potential ◽  
Potential Curves ◽  
Good Agreement

Methods are suggested for calculating kinetic parameters of moderately rapid redox reactions from current–potential curves obtained with (a) rotating electrodes or stationary electrodes in stirred solutions, (b) dropping mercury electrodes. Experimental results for the V2+/V3+ reaction at a dropping mercury electrode are presented and compared with a-c. impedance measurements on the same system. It is found that there is a good agreement between the kinetic parameters obtained by the two methods when the current–potential curves are interpreted with the aid of Koutecky's theory of diffusion to a dropping mercury electrode.

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