Abstract
Voltammetry and electrochemical impedance spectroscopy were applied to investigate the inhibition activity of ethyleneglycol and its oligomers on tin electrode in strong acidic sulfate solutions. Tetraethyleneglycol was found to be the most active substance among compounds HO–(CH2–CH2–O) m –H (m≤4) that retards diffusion-controlled Sn(II) reduction due to its inhibitive adsorption. This rather slow process is controlled both by diffusion and electrosorption steps. A comparison of exchange current densities obtained in the presence of different polyethers shows that the length of the hydrocarbon chain is the main factor responsible for inhibition activity of such substances on tin electrode.
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We are grateful to Dr. M. Samulevičienė for her kind assistance in performing impedance measurements.
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Survila, A., Bražinskienė, D. Inhibition activity of ethyleneglycol and its oligomers on tin electrode. J Solid State Electrochem 11, 65–70 (2007). https://doi.org/10.1007/s10008-005-0070-2
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DOI: https://doi.org/10.1007/s10008-005-0070-2