Corrosion inhibition studies for mild steel in 5.0 M HCl by substituted phenyltetrazole

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El Kacimi Y., Azaroual M. A., Touir R., Galai M., Alaoui K., Sfaira M., ...Daha Fazla

EURO-MEDITERRANEAN JOURNAL FOR ENVIRONMENTAL INTEGRATION, cilt.2, sa.1, 2017 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2 Sayı: 1
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s41207-016-0011-8
  • Dergi Adı: EURO-MEDITERRANEAN JOURNAL FOR ENVIRONMENTAL INTEGRATION
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI)
  • Anahtar Kelimeler: Corrosion and inhibition, Substituted phenyltetrazole, Mild steel, 5.0 M HCl, Electrochemical measurements
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

The inhibition efficiency of three substituted phenyltetrazole compounds, namely 5-(4-chlorophenyl)-1H-tetrazole (Cl-PT), 5-(4-methoxyphenyl)-1H-tetrazole (MO-PT), and 5-phenyl-1H-tetrazole (PT), for mild steel corrosion in 5.0 M HCl solution was investigated using weight loss measurements and electrochemical study. It is showed that these compounds are good inhibitors for mild steel corrosion in 5.0 M HCl solution which act as cathodic type inhibitors. So, the inhibition efficiency was increased with inhibitor concentration in the order of Cl-PT > MO-PT > PT which depended on their molecular structures. It is found also that these compounds toke its performance at different temperatures range from 298 to 328 K. In addition, the thermodynamic adsorption parameters at different concentrations were investigated and discussed. Finally, it is seen that the inhibition efficiency of the studied compounds increased with immersion time to reach a maximum at 12 h.