Abstract
The adsorption of 4-(3-methoxypropyl)-4H-1,2,4-triazole-3-thiol (MT) compound on mild steel in sulfuric acid solution both in the absence and presence of copper ions has been studied using potentiodynamic polarization technique. It has been found that the adsorption of MT on mild steel is not efficient; the surface coverage reached around 0.68 in the presence of ca. 1.0 mM MT. Interestingly it reached 0.75 in the presence of around one tenth of this concentration when 50 μM Cu2+ is added, with synergistic parameters 2.23 reflecting the enhanced adsorption of MT in the presence of copper ions. The reason behind the synergistic adsorption is investigated using cyclic voltammetric technique.
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