Spectroscopic Characterization of Poly(ortho-Aminophenol) Film Electrodes: A Review Article

Figure 17

Absorbance as a function of potential at fixed 𝜆 values in NaClO₄ + HClO₄ at different pH values: (a) 340 nm, (b) 450 nm, and (c) 750 nm. The arrows indicate the potential scan direction: (- - - -) pH = 1.0 and (—) pH = 1.5. Sweep rate 0.01 V s⁻¹ [57].

(a)

(b)

(c)