The relationship between these two variables can also be determined by plotting the log Ep vs Log scan rate (Figure ). The slope of the plot of log Ep vs log scan rate provides information about the redox process of the electrochemical reaction, including diffusioncontrolled process (slope close to 0.5), adsorption-controlled process (slope close to 1.0) and mixed diffusion-adsorption process (slope between 0.5 and 1.0). Based on Figure , the oxidation process of 2CPTZ is a diffusion-controlled process with a slope of 0.068. The slope in the anodic peak current logarithm plot (log Ip) vs the potential scan rate logarithm (log v) shows that the process is controlled by mass transfer closer to the theoretical value of 0.5 (slope: 0.47, Figure ). The Randles-Sevcik Equation was used to determine the electrochemical parameters for reversible or irreversible diffusion-controlled via a potential scan rate study. In this case, the Eq. 1 for reversible redox process at 25 °C was used. Where ip is the peak current, k is a constant of 2.69 x 10 5 C/mol√𝑣, n is the number of electrons, A is the electrode area (cm 2 ), D is the analytes diffusion coefficient (cm 2 /s), ν is the rate at which the potential is swept (V/s), and C is concentration. Eq.2 for the irreversible redox process was also employed. Where additionally, k is a constant of 2.99 x 10 5 C/mol√𝑣 and ⍺ is the charge transfer coefficient. The charge transfer coefficient can be used to determine the number of electrons (n) involved in the irreversible oxidation process.