Journal
CORROSION SCIENCE
Volume 53, Issue 1, Pages 263-275Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2010.09.020
Keywords
Alloxazine; Mild steel; Sulphuric acid; Density functional theory (DFT)
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Alloxazine (ALLOX) was tested as corrosion inhibitor for mild steel in 0 5 M H2SO4 solution using non-electrochemical technique (gravimetric and UV-Visible spectrophotometric measurements) at 303-333 K ALLOX acts as inhibitor for mild steel in acidic medium Inhibition efficiency increases with increase in concentration of ALLOX but decrease with rise in temperature The adsorption of ALLOX was found to follow Temkin adsorption Isotherm model Both the activation and thermodynamic parameters governing the adsorption process were calculated and discussed The adsorption follows a first-order kinetics DFT study gave further insight into the mechanism of inhibition action of ALLOX (C) 2010 Elsevier Ltd All rights reserved
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