| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 219981 | Journal of Electroanalytical Chemistry | 2010 | 4 Pages |
Abstract
The inhibitive action of urea on the corrosion behavior of copper was investigated in borate buffer pH (8.4) by means of cyclic voltammetry and electrochemical impedance spectroscopy (EIS). A consistent trend of increase in inhibition efficiency was observed as a function of concentration of urea. The adsorption of urea on copper surface was found to obey the Langmuir adsorption isotherm with ΔG = −35.2 kJ/mole and adsorption constant K = 2.7 × 104 dm3/mole. Impedance spectroscopic measurements confirmed that charge transfer resistance increases in presence of urea upon increasing its concentration.
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Authors
Fouzia Altaf, Rumana Qureshi, Safeer Ahmed, Athar Y. Khan, Amtul Naseer,