Effect of three component (aniline
By K.R. Ansari and M.A. Quraishi
Published in Journal of the Association of Arab Universities for Basic and Applied Sciences
NULL
2015
Abstract
Polymeric Schiff base containing aniline, formaldehyde and piperazine (AFPP) was synthesized and investigated as corrosion inhibitor for mild steel in 1 M \HCl\ by weight loss measurements, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques. Experimental results showed that \AFPP\ is an effective inhibitor for mild steel in 1 M \HCl\ and exhibited 98% inhibition efficiency. Potentiodynamic polarization studies showed that \AFPP\ is a mixed-type inhibitor predominantly cathodic type. The adsorption of inhibitor on the mild steel surface followed Langmuir adsorption isotherm. Activation energy (Ea), standard energy of adsorption (?G
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