کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1468958 | 1510015 | 2014 | 8 صفحه PDF | دانلود رایگان |
• Green approach is proposed to fabricate super-hydrophobic film on copper.
• The most possible bonding sites between Cu(II) and capsaicin are proposed.
• The dependence of wettability on morphology is clarified with binarisation method.
• Film acts as super-barrier to corrosion within a wide potential range.
A green approach was used to fabricate super-hydrophobic film with capsaicin (N-(4-hydroxy-3-methoxybenzyl)-8-methylnon-trans-6-enamide), pungent ingredient of cayenne. The film is composed of capsaicin that coordinates with Cu(II) through π orbital of benzene ring. Super-hydrophobic property of film can be attributed to nanospherical pores of its structure and low surface energy of its hydrocarbon chain. Super-hydrophobic film shows >99.9% efficiency as a barrier that inhibits corrosion of underlying Cu without losing its stability within a wide potential range. This performance can be attributed to isolating action and insulating property of air trapped in film.
Journal: Corrosion Science - Volume 80, March 2014, Pages 366–373