Corrosion inhibition efficiency and adsorption characteristics of some Schiff bases at mild steel/hydrochloric acid interface
2013; Elsevier BV; Volume: 45; Issue: 3 Linguagem: Inglês
10.1016/j.jtice.2013.08.017
ISSN1876-1089
AutoresC.B. Pradeep Kumar, K. N. Mohana,
Tópico(s)Hydrogen embrittlement and corrosion behaviors in metals
ResumoThe corrosion inhibition efficiency of newly synthesized Schiff bases was investigated for mild steel (MS) corrosion in 0.5 M HCl medium using mass loss and electrochemical techniques. The potentiodynamic polarization results indicated that all the studied inhibitors act as mixed type. The adsorption process on MS surface obeyed Langmuir isotherm. The associated activation parameters and thermodynamic data of adsorption were evaluated and discussed. The adsorbed film formed on the metal surface was characterized by SEM and IR-spectroscopy. Further, antioxidant activity of the Schiff bases was determined and correlated the results obtained with inhibition efficiency.
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