کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6472324 1424137 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical and anti-corrosion properties of octadecanethiol and benzotriazole binary self-assembled monolayers on copper
ترجمه فارسی عنوان
خواص الکتروشیمیایی و ضد خوردگی تک لایههای بتونی خودمختور اکسید اتانول و بنزوتریازول بر روی مس
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- A kind of self-assembly monolayers containing C18H37-SH and BTA was prepared.
- The self-assembly monolayers show high corrosion inhibition performance to copper.
- There is a synergy between heterocycle and sulfydryl groups on corrosion inhibition.
- The properties of the binary SAMs are related to assembling sequence.

Self-assembled monolayers based on octadecanethiol (C18H37-SH) and benzotriazole (BTA) (C18H37-SH&BTA SAMs) were fabricated on copper surface, showing effective corrosion protection for the substrate. The self-assembled monolayers (containing the composite SAMs and the SAMs based on single C18H37-SH or BTA) were characterized by surface enhanced Raman spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and the results show that both C18H37-SH and BTA are successfully self-assembled on copper surface, forming compact SAMs. The anti-corrosion performance of the SAMs was studied by potentiodynamic polarization and electrochemical impedance spectroscopy. It is revealed that the anti-corrosion performance of the binary (C18H37-SH and BTA) composite SAMs is influenced by the assembling sequence. The C18H37-SH&BTA SAMs display the best anti-corrosion performance for copper with the highest charge transfer resistance of 5.0·105 Ω cm2.

Self-assembled monolayers (SAMs) were fabricated on copper surface by immersing copper specimens in the aqueous solution containing octadecanethiol (C18H37-SH) and benzotriazole (BTA) only for five minutes, showing very good corrosion protection for copper.106

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 220, 1 December 2016, Pages 245-251
نویسندگان
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