Article ID Journal Published Year Pages File Type
1468621 Corrosion Science 2015 9 Pages PDF
Abstract

•Seven benzothiazolic ammonium bromides were investigated at high temperature.•The impedance data were described using two structure models.•The activation energy in 1 M HCl and the inhibitor efficiency were determined.

The influence of the temperature on the inhibitive properties of seven mono- and dicationic quaternary ammonium bromides on mild steel was investigated in 1 M HCl and 1 M H2SO4. Impedance, polarisation resistance and polarisation curves methods were used. Two adequate structural models of the interface metal/1 M HCl + inhibitor were proposed to describe the processes in different temperature ranges. The values of the models’ parameters were determined. The influence of the temperature on the inhibitor efficiency was studied as well. The apparent activation energy was found using two independent methods. Conclusions were made about the inhibitors’ adsorption type.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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