- #1
Chris-jap
- 5
- 0
Hello everybody
I have got an electrochemistry probleme
In the case of a planar electrode (one dimension) the current density is proportinnal to the concentration of electroactive species: i=-nFkC C depending of time
From Fick law dC/dt=Dd2C/d2x we can found Cottrell law: i=-nFAC0(D/PIt)1/2
Do tou know How?
And my second question is
What is the fick lack for spherical coordinate and what are the expression of C(t, spheric coordinate)
And also what is the new expression of Cottrell law?
Thank You for your attention and I apologize for my bad english.
Christophe
I have got an electrochemistry probleme
In the case of a planar electrode (one dimension) the current density is proportinnal to the concentration of electroactive species: i=-nFkC C depending of time
From Fick law dC/dt=Dd2C/d2x we can found Cottrell law: i=-nFAC0(D/PIt)1/2
Do tou know How?
And my second question is
What is the fick lack for spherical coordinate and what are the expression of C(t, spheric coordinate)
And also what is the new expression of Cottrell law?
Thank You for your attention and I apologize for my bad english.
Christophe