CORROSION INHIBITION BEHAVIOR OF N,N′-BIS(۲,۴,۶-TRIHYDROXYACETOPHENONE)-PROPANDIIMINE ON ST۴۴.۰ STEEL IN ALKALINE NACL SOLUTION
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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JR_IJMSEI-12-2_005
تاریخ نمایه سازی: 26 مرداد 1402
Abstract:
The inhibition behavior of N,N′-bis(۲,۴,۶-trihydroxyacetophenone)-propandiimine (THAPP) as an
environmentally friendly Salen Ligand on the corrosion inhibition of mild steel was studied in alkaline solution
(pH=۱۰) containing ۳% NaCl. Measurements were carried out using electrochemical and surface techniques. The
experimental results suggested that this compound was an effective corrosion inhibitor for mild steel and the protection
efficiency was increased with the increase in inhibitor concentration. Polarization curves indicated that this organic
compound was a mixed-type inhibitor. Adsorption on the mild steel surface follows the Langmuir isotherm model.
Activation parameters and thermodynamic adsorption parameters of the corrosion process such as E
a
, ΔH, ΔS, K
ads
,
and ΔG
ads
were calculated by the obtained corrosion currents at different temperatures
Keywords:
Authors
J. Dahdele
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
I. Danaee
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
G. H. Rashed
Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran.
M. Rashvandavei
Department of Chemistry, K. N. Toosi University of Technology, Tehran, Iran.