Cottrell Equation ·
i(t) = nFA√D·c* / (√π·√t)
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.com · potential step · diffusion-limited · i ∝ 1/√t
current i
— µA
time t
0 s
State
—
Electroactive species (c*)
Depletion layer √(πDt)
Faradaic current / electrode
i vs t^(-1/2) line
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.com · The Cottrell Equation