Klorürlü Ortamlarda (pH=7,0) Bakırın Korozyon Davranışlarına Askorbik Asidin İnhibisyon Etkisinin Belirlenmesi

Yıl 2017, Cilt: 17 Sayı: 1, 192 - 202, 24.04.2017

Sema Çelik , Güray Kılınççeker

Öz

Bu çalışmada, bakırın korozyon davranışlarına Askorbik asidin inhibisyon etkisi %3.5 iyonu içeren

ortamlarda potansiyodinamik polarizasyon ve elektrokimyasal impedans spektroskopisi (EIS)

kullanılarak araştırılmıştır. Askorbik asidin farklı derişimlerde akım-potansiyel ve Nyquist eğrileri elde

edilmiştir. Askorbik asit içeren ve içermeyen %3.5 NaCI çözeltilerinde bakır elektrotun taramalı elektron

mikroskopu (SEM) ile yüzey görüntüleri belirlenmiştir. Elde edilen sonuçlara göre, Askorbik asit %3.5

NaCl çözeltisinde bakırın korozyonunu engellemektedir. İnhibisyon etkinliğinin askorbik asit

konsantrasyonundaki azalma ile arttığı tespit edilmiştir.

Anahtar Kelimeler

Bakır”, “Elektrokimyasal Teknikler”, “Korozyon”, “Adsorpsiyon izoterm

Kaynakça

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