Azole Compounds as Corrosion Inhibitors: Part I
Yükleniyor...
Dosyalar
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The inhibitory effect of 3-amino-1,2,4 triazole (I), 2-aminothiazole (II), and 3-amino-5-mercapto-1,2,4 triazole (III) on the corrosion of steel in 2 M HCl solution has been studied using chemical technique and electrochemical techniques. The inhibition efficiencies (eta) obtained from all the methods employed are in good agreement. Results reveal compound (III) to be the most efficient inhibitor with an inhibition efficiency of 91%. The inhibition efficiency increases with increasing concentration in all three compounds. Studies clearly indicate that these compounds act as a mixed type inhibitor without altering the cathodic reaction. The inhibitors are adsorbed on the surface according to the Langmuir adsorption isotherm. Quantum chemical parameters such as highest occupied molecular orbital energy (E (HOMO)), lowest unoccupied molecular orbital energy (E (LUMO)), energy gap (Delta E), and dipole moment (mu) have been calculated for 3-amino-1,2,4 triazole (I), 2-aminothiazole (II), and 3-amino-5-mercapto-1,2,4 triazole (III) using semi-empirical PM3 and 6-311G(d,p) DFT methods.
Açıklama
Emregul, Kaan C/0000-0002-2991-9702
WOS: 000330209800023
WOS: 000330209800023
Anahtar Kelimeler
impedance spectroscopy, inhibitor, mild steel, quantum chemical, Schiff base, Tafel
Kaynak
Journal Of Materials Engineering And Performance
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
23
Sayı
1
