کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440177 | 1509977 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corrosion of polypyrrole: Kinetics of chemical and electrochemical processes in NaOH solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The corrosion kinetics of PPy/SO4 in aerated and de-aerated NaOH solutions (0.02-0.5Â M) were investigated and the interaction between chemical and electrochemical corrosion processes was verified. The corrosion of PPy is mainly caused by the chemical attack of OHâ in de-aerated NaOH, but is accelerated largely in aerated NaOH for the occurrence of the electrochemical processes. These two processes are mutually promoted in aerated NaOH. At a constant NaOH concentration (CNaOH), two corrosion stages are proved to follow first-order kinetics. In each corrosion stage, the chemical and electrochemical processes have different kinetic behavior and CNaOH has important influence on them.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 118, April 2017, Pages 96-108
Journal: Corrosion Science - Volume 118, April 2017, Pages 96-108
نویسندگان
Yao Wang, Yubing Qiu, Zhenyu Chen, Xingpeng Guo,