Details

Autor(en) / Beteiligte

• Khadom, A A
• Musa, A Y
• Kadhum, A A H
• Mohamad, A B
• Takriff, M S

Titel

Adsorption Kinetics of 4-Amino-5-Phenyl-4H-1, 2, 4-Triazole-3-Thiol on Mild Steel Surface

Ist Teil von

• Portugaliae Electrochimica Acta, 2010, Vol.28 (4), p.221-230

Ort / Verlag

Sociedade Portuguesa de Electroquímica

Erscheinungsjahr

2010

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• The adsorption of 4-amino-5-phenyl-4H-1, 2, 4-triazole-3-thiol (APTT) as a corrosion inhibitor on mild steel surface in hydrochloric acid (HCl) solution was studied using the weight loss technique. The surface coverage with the adsorbed APTT was used to calculate the free energy of adsorption, ΔGºads, of APTT using Bockris-Swinkels isotherm. The dependence of free energy of adsorption, ΔGºads, on the surface coverage, θ, is ascribed to the surface heterogeneity of the adsorbent. The effect of APTT was discussed from the adsorption model viewpoint. The adsorption of APTT molecules on the surface occurs without modifying the kinetic of corrosion process.