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The effect of benzimidazole bearing 1,3,4-oxadiazole derivative, 5-((2-propyl-1H-benzo[d]imidazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol (PBIMOT), on the corrosion of mild steel in 0.25 M HNO3 solution was studied using electroanalytical techniques. The inhibitive mechanism, kinetics and adsorption… Click to show full abstract
The effect of benzimidazole bearing 1,3,4-oxadiazole derivative, 5-((2-propyl-1H-benzo[d]imidazol-1-yl)methyl)-1,3,4-oxadiazole-2-thiol (PBIMOT), on the corrosion of mild steel in 0.25 M HNO3 solution was studied using electroanalytical techniques. The inhibitive mechanism, kinetics and adsorption properties of PBIMOT on the corrosion of mild steel in 0.25 M HNO3 have been investigated. PBIMOT molecule showed good inhibition efficiency in nitric acid solution and inhibition efficiency increases with increasing concentration and which attains 94% at 200 ppm at 303 K and the same decreases with temperature further. The fitting of isotherm and kinetic models have been studied to understand the corrosion inhibition mechanism. Quantum chemical parameters were calculated and explained.
Journal Title: Journal of Bio- and Tribo-Corrosion
Year Published: 2017
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