Corrosion inhibition of mild steel by N, N’-(5,5- dimethylcyclohexane-1,3-diylidene)dianiline in acid media: Gravimetric and electrochemical evaluations

Autor: Ragi, K., Kakkassery, Joby Thomas, Raphael, Vinod P., Paulson, Binsi M., Johnson, Reeja
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Current Chemistry Letters, Pp 67-80 (2021)
Druh dokumentu: article
ISSN: 1927-7296
1927-730X
DOI: 10.5267/j.ccl.2020.8.001
Popis: The corrosion inhibition efficiency of the Schiff base N,N’-(5,5-dimethylcyclohexane-1,3-diylidene)dianiline (DmChDa) on mild steel in 1M HCl and 0.5M H2SO4 was evaluated using gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization and electrochemical noise measurement. Experimental results established that DmChDa possess relatively high corrosion inhibition capacity. Langmuir and El-Awady adsorption isotherms were obeyed by the Schiff base in 1M HCl and 0.5M H2SO4 respectively. SEM analysis showed that DmChDa was adsorbed on the steel surface during corrosion inhibition. The variation of metal dissolution with temperature was also examined using gravimetric study.
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