کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5409213 1506546 2017 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Imidazole based compounds as copper corrosion inhibitors in seawater
ترجمه فارسی عنوان
ترکیبات ایمیدازول به عنوان مهار کننده های خوردگی مس در آب دریا
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
The effects of imidazole and its structural derivatives: purine, adenine and 6-benzylaminopurine, on copper corrosion in seawater were investigated. Electrochemical methods were chosen for this purpose and the results show that they all act as mixed-type corrosion inhibitors under tested conditions. According to the potentiodynamic polarization results inhibition efficiency at corrosion potential increases in the following order imidazole < purine < adenine < 6-benzylaminopurine, which is in agreement with the expectation that the increase of molecular weight and number of heteroatoms in the molecule leads to the increase of inhibition efficiency degree. In the broader potential range, adenine is more efficient. The mechanism of inhibitor action includes adsorption on copper surface that fits the Langmuir adsorption isotherm. Quantum mechanical calculations indicate that there is a correlation between energy gap and inhibition efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 225, January 2017, Pages 127-136
نویسندگان
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