کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9783000 | 1511867 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption behavior of dodecylamine on copper-nickel alloy surface in NaCl solutions studied by electrochemical methods and AFM
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The adsorption behavior of dodecylamine on a copper-nickel alloy in 0.2Â M NaCl solutions was studied by electrochemical methods and atomic force microscopy (AFM). The polarization curves showed that dodecylamine had both cathodic and anodic inhibition action, but was mainly a cathodic-type inhibitor. The results of electrochemical impedance spectroscopy (EIS) and in situ AFM phase images indicated that as the inhibitor concentration increased from 0.0005 to 0.005Â M, the monolayer adsorbed film of inhibitor tended to become more ordered and denser so that corrosion inhibition efficiency tended to increase. Differential capacity curve experiments indicated that the adsorbed dodecylamine film changed the structure of the double-electric layer and made the potential of zero charge (PZC) shift to the positive direction. AFM force curve measurements were also performed and showed that as a result of the adsorption of dodecylamine on copper-nickel alloy surface, adhesive forces between the tip and the sample surface were detected and the long-range electrostatic repulsive forces between the tip and the sample surface were decreased.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 93, Issues 2â3, 15 October 2005, Pages 388-394
Journal: Materials Chemistry and Physics - Volume 93, Issues 2â3, 15 October 2005, Pages 388-394
نویسندگان
Jun-E Qu, Xingpeng Guo, Zhenyu Chen,