2-(4-Morpholinothio)benzothiazole as a High-efficiency Corrosion Inhibitor for Copper in 0.5 M H2SO4 Solution

doi:10.20964/2022.11.22

Paper

2-(4-Morpholinothio)benzothiazole as a High-efficiency Corrosion Inhibitor for Copper in 0.5 M H2SO4 Solution

Published Nov 1, 2022 · Wu Long

International Journal of Electrochemical Science

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Abstract

This work developed a benzothiazole derivative named 2-(4-Morpholinothio)benzothiazole (MB) to replace toxic corrosion inhibitors. Based on EIS, Polarization curve, weight loss, SEM, LSCM, Langmuir adsorption, and theoretical calculation, the anti-corrosion ability of MB for copper in 0.5 M H 2 SO 4 was explored. It was worth noting that the η value reached 94% when the concentration of MB was 1 mM. The supreme anti-corrosion ability of MB for copper could be attributed to a compact MB film formed on the copper surface. Langmuir adsorption and theoretical calculation appropriately demonstrated the anti-corrosion mechanism of MB film on the copper surface from the thermodynamic and molecular levels. We hope this work can accumulate experience in organic corrosion inhibitor research.

Study Snapshot

2-(4-Morpholinothio)benzothiazole (MB) effectively inhibits copper corrosion in 0.5 M H2SO4 solution, with a 94% value achieved at 1 mM concentration.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

2-(4-Morpholinothio)benzothiazole as a High-efficiency Corrosion Inhibitor for Copper in 0.5 M H2SO4 Solution

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