Fig. 5
From: Physical and electrochemical area determination of electrodeposited Ni, Co, and NiCo thin films
Example electrochemical area measurements for a NiCo thin film. The sample had a deposited charge of 1000 mC. The inset shows CV measurements in 5 mM Ru(NH\(_3\))\(_6\)Cl\(_3\) and 1 M KCl at 200, 400, and 800 mV/s. The magnitude of the peak cathodic current, \(I_{\mathrm {p}}\), is fit to a square root function vs. scan rate, v, to determine the area, \(A_{\mathrm {ec}}\), of the sample using the Randles–Sevcik equation