Adsorption behaviour of o-hydroxy acetophenone benzoyl hydrazone on mild steel/hydrochloric acid interface
By Ashish Kumar Singh and Pooja Singh
Published in Journal of Industrial and Engineering Chemistry
NULL
2015
Abstract
The effect of synthesised o-hydroxy acetophenone benzoyl hydrazone (HABH) on the corrosion of mild steel in 1 M \HCl\ was investigated using potentiodynamic polarisation (PDP), electrochemical impedance spectroscopy (EIS), thermogravimetric analysis, contact angle measurement and weight loss methods. The inhibition efficiency of \HABH\ increases with surface roughness of emery paper up to 800 grits and thereafter it decreases with additional increase in surface roughness. \TGA\ results also indicated that the inhibitor film on the surface had a relatively good thermal stability. The adsorption behaviour of \HABH\ is experimentally investigated by contact angle measurement of acid solution on metal surface.
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