Investigation on Two Salen Type Schiff base Compounds as Corrosion Inhibition of Copper in 0.5 M H2SO4

Fatemeh RAVARI; Athareh DADGARINEZHAD; İran SHEKHSHOAEI

Makale detayları

Investigation on Two Salen Type Schiff base Compounds as Corrosion Inhibition of Copper in 0.5 M H2SO4

Yazarlar:

Fatemeh RAVARI | Athareh DADGARINEZHAD | İran SHEKHSHOAEI

Yayıncı:

Gazi University

Dergi:

Gazi University Journal of Science 2009 Vol.22 Issue 3, pp.175-182

Belge Tipi:

Makale

Yayın Tarihi:

3/2010

Belge Dili:

İngilizce

Document ID (Org No.):

2000429964

eISSN:

2147-1762

Özet:

 


The inhibition of copper corrosion by two new Schiff bases under 0.5 M H2SO4 at 25oC was studied by electrochemical tests (potentiodynamic polarization and AC impedance technique).These studies have shown that two Schiff bases are good inhibitors for copper in 0.5 M H2SO4. Results obtained reveal that, as the concentration of two Schiff bases increases, the polarization resistance values ( Rt ) increases, the double layer capacitance values (Cdl) decrease and inhibition efficiency increases. The inhibition process was attributed to the formation of an adsorbed film on the metal surface that protects the metal against corrosive agents. It was found that these two Schiff bases were chemically adsorbed on the copper surface and follow Langmuir isotherm. The Tafel polarization have shown that two Schiff bases act as anodic inhibitors.

 

Key Words: Corrosion inhibition, Schiff base, AC impedance, Inhibition efficiency.

 

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Makale detayları

Investigation on Two Salen Type Schiff base Compounds as Corrosion Inhibition of Copper in 0.5 M H2SO4

Yazarlar: Fatemeh RAVARI | Athareh DADGARINEZHAD | İran SHEKHSHOAEI

Yayıncı: Gazi University

Dergi: Gazi University Journal of Science 2009 Vol.22 Issue 3, pp.175-182

Belge Tipi: Makale

Yayın Tarihi: 3/2010

Belge Dili: İngilizce

Document ID (Org No.): 2000429964

eISSN: 2147-1762

Sayı

Yazarlar:

Fatemeh RAVARI | Athareh DADGARINEZHAD | İran SHEKHSHOAEI

Yayıncı:

Gazi University

Dergi:

Gazi University Journal of Science 2009 Vol.22 Issue 3, pp.175-182

Belge Tipi:

Makale

Yayın Tarihi:

3/2010

Belge Dili:

İngilizce

Document ID (Org No.):

2000429964

eISSN:

2147-1762