Abstract
The corrosion inhibition effect of benzotriazole on copper and steel in simulated tap water was investigated by using potentiodynamic polarization, electrochemical impedance spectroscopy and a quantum chemistry analysis. The corrosion inhibition efficiency for copper and steel was accordingly increased with an increasing of the benzotriazole concentrations. However, the electrochemical test showed a significant difference between the inhibition efficiency of copper and steel. From molecular theory and the adsorption isotherm, the difference between the d-orbital structure of copper and steel affects the adsorption stability of benzotriazole on the metal surface. This postulation is well correlated with the results of the quantum chemical analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 76-84 |
| Number of pages | 9 |
| Journal | Materials Transactions |
| Volume | 58 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2017 |
Keywords
- 3-benzotriazole
- Adsorption
- Copper
- P-d bonding
- Steel