Research Article

Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Medium

Figure 6

EIS data for aluminium in 1.0 M hydrochloric acid solution in the presence of electrodeposited-1 and electrodeposited-2 coatings (represented as 1corr and 2corr, respectively) and without coating. (a) Nyquist plots and Bode plots, (b) log Z vs. log f, and (c) phase angle (f) vs. log f. (d, e) Equivalent circuits used to fit EIS data for uncoated aluminium and coated aluminium, respectively.