کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1472699 | 990409 | 2011 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tryptophan as copper corrosion inhibitor in 0.5 M aerated sulfuric acid
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The use of Tryptophan (Trp) as a copper corrosion inhibitor was tested in 0.5 M aerated sulfuric acid (H2SO4) in the 20– temperature range. Its effectiveness was assessed through potentiodynamic (at 1 h, 72 h, 6 months), spectrophotometric (72 h tests) and gravimetric (72 h tests) tests. At 20– (1 h tests) the Trp adsorption followed Bockris–Swinkels' isotherm (x=2). The Trp even underwent over time (six month) a photodegradation, but surprisingly enough this did not affect the inhibition percentage (IP) which was 80% for the solutions kept in the dark as well as those kept in light.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 44, Issue 9, September 2002, Pages 1995–2011
Journal: Corrosion Science - Volume 44, Issue 9, September 2002, Pages 1995–2011
نویسندگان
G. Moretti, F. Guidi,