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Table 1 Electrochemical parameters obtained by the Tafel curves of Q235 CS, TiO2 in the dark, SnIn4S8/TiO2 in the dark, TiO2 under illumination, and SnIn4S8/TiO2 under illumination

From: Preparation of SnIn4S8/TiO2 Nanotube Photoanode and Its Photocathodic Protection for Q235 Carbon Steel Under Visible Light

Samples Ecorr (V vs. SCE) icorr (μA cm−2)
Q235 CS  − 0.554 1.658
TiO2dark  − 0.623 3.144
SnIn4S8/TiO2dark  − 0.646 5.313
TiO2illumination  − 0.751 18.94
SnIn4S8/TiO2illumination  − 1.011 63.10