کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9567493 1503717 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical behaviour of brass in artificial seawater: effect of organic inhibitors
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Electrochemical behaviour of brass in artificial seawater: effect of organic inhibitors
چکیده انگلیسی
The electrochemical behaviour of brass was studied in artificial seawater with two organic inhibitors namely N,N-dibenzotriazol-1-ylmethylaminomethane (DBMM) and 3-hydroxypropyl benzotriazole (HPBT) using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), cyclic voltammetry and current transient techniques. Preliminary screening of the inhibition efficiency (IE) was carried out using weight-loss measurements. Polarization measurements showed that the organic compounds investigated are mixed type inhibitors, inhibiting the corrosion of brass by blocking the active sites of the metal surface. Changes in the impedance parameters (charge transfer resistance (Rct) and double layer capacitance (Cdl)) are related to adsorption of organic inhibitors on the metal surface, leading to the formation of a protective film, which grows with increasing exposure time. Cyclic voltammetric studies confirmed that the addition of inhibitors effectively inhibits the anodic dissolution of brass in artificial seawater.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 241, Issues 3–4, 15 March 2005, Pages 449-458
نویسندگان
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