Table 3: Electrochemical parameters obtained from polarization measurements at 30°C.

PAMT (mol/dm3) 𝐸 c o r r (mV versus SCE) 𝑖 c o r r (μA cm−2) 𝛽 𝑐 (mV dec−1) 𝛽 𝑎 (mV dec−1) I E (%)

None473.7648.6136.947.97
1.0 × 10−3−472.814.37104.323.0097.8
1.0 × 10−4−470.2212.7106.324.5767.2
7.5 × 10−5−481.6276.9120.438.1357.3