Experimental and theoretical investigation of 3-amino-1,2,4-triazole-5-thiol as a corrosion inhibitor for carbon steel in HCl medium
2011; Elsevier BV; Volume: 53; Issue: 12 Linguagem: Inglês
10.1016/j.corsci.2011.08.038
ISSN1879-0496
AutoresBaşak Doğru Mert, Mehmet Erman Mert, Gülfeza Kardaş, Birgül Yazıcı,
Tópico(s)Hydrogen embrittlement and corrosion behaviors in metals
ResumoThe inhibition effect of 3-amino-1,2,4-triazole-5-thiol (3ATA5T) was investigated in 0.5 M HCl on carbon steel (CS) by electrochemical impedance spectroscopy and potentiodynamic measurements at various concentrations and temperatures. Results showed that the correlation between experimental (inhibition efficiencies, ΔGads, Ea) and quantum calculation parameters (dipole moment, EHOMO, ELUMO). The high inhibition efficiency was declined in terms of strongly adsorption of protonated inhibitor molecules on the metal surface and forming a protective film.
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