Anticorrosion Effect of 4‐Amino‐5‐(4‐pyridyl)‐4H‐1,2,4‐triazole‐3‐thiol for Mild Steel in HCl Solution

The effect of 4‐amino‐5‐(4‐pyridyl)‐4H‐1,2,4‐triazole‐3‐thiol (4APT) on the corrosion of mild steel in hydrochloric acid solution was investigated as electrochemically, theoretically and qualitatively. Inhibition efficiency of 4APT on mild steel surface was observed and illuminated by EIS, potentiod...

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Bibliographic Details
Published in:ChemistrySelect (Weinheim) 2017-05, Vol.2 (13), p.3676-3682
Main Authors: Farsak, Murat, Ongun Yüce, Ayşe, Kardaş, Gülfeza
Format: Article
Language:English
Subjects:
Ab initio calculations
Acidic electrolyte
EIS
Electron microscopy
Inhibition
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Summary:The effect of 4‐amino‐5‐(4‐pyridyl)‐4H‐1,2,4‐triazole‐3‐thiol (4APT) on the corrosion of mild steel in hydrochloric acid solution was investigated as electrochemically, theoretically and qualitatively. Inhibition efficiency of 4APT on mild steel surface was observed and illuminated by EIS, potentiodynamic polarization, SEM and FTIR techniques. All of the experiments show that 4APT provides a good film layer on the surface and inhibits the corrosion of mild steel by adsorbing on a vast scale. The inhibition efficiency of 4APT was found approximately 96 %. It is understood that 4APT is an effective inhibitor for acid corrosion of mild steel. The search for inhibitors that slow the corrosion rate of the mild steel in an acidic environment is increasing day by day. 4‐amino‐5‐(4‐pyridyl)‐4H‐1,2,4‐triazole‐3‐thiol (4APT), a new inhibitor compound, appears to be a promising candidate to protect the mild steel from corrosion. The 4APT inhibition efficiency was analyzed electrochemically and quantum theoretically. Surface characterizations were made with SEM and FTIR.
ISSN:2365-6549
2365-6549
DOI:10.1002/slct.201700342