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log i 2 1 0 -1 -2 -3 -4 -5 -6 -7 -1.5 -1.2 -0.9 -0.6 -0.3 0 0.3 0.6 0.9 1.2 1.5 E /V (SHE)
Passivity

Tafel slope

V /decade Eqm potential

(SHR)
log i0


log ipass


log icrit


Diffusion limited

Tafel slope

V /decade
Eqm potential

(SHR)
log i0


Solution O2 concn


Dif layer thickness




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