کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470370 990323 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Inhibition of copper corrosion in sodium chloride solution by the self-assembled monolayer of sodium diethyldithiocarbamate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Inhibition of copper corrosion in sodium chloride solution by the self-assembled monolayer of sodium diethyldithiocarbamate
چکیده انگلیسی

Sodium diethyldithiocarbamate (DDTC) self-assembled monolayer (SAM) on copper surface has been investigated by SERS and EDS and the results show that DDTC SAM is chemisorbed on copper surface by its S atoms with tilted orientation. Corrosion inhibition ability of DDTC SAM was measured in 3% NaCl solution using electrochemical methods. The impedance results indicate that the maximum inhibition efficiency of DDTC SAM can reach 99%. Quantum chemical calculations show that DDTC has relatively small ΔE between HOMO and LUMO and large negative charge in its two sulfur atoms, which facilitates the formation of a DDTC SAM on copper surface.

Research highlights
► DDTC is of low toxicity.
► DDTC SAM had good corrosion inhibition effects on copper in 3% NaCl solution.
► DDTC SAM was chemisorbed on copper surface by its S atoms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 53, Issue 5, May 2011, Pages 1999–2005
نویسندگان
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