Xin Zhou, Huaiyu Yang, Fu-hui Wang
2012
Citations
4
Influential Citations
112
Citations
Quality indicators
Journal
Corrosion Science
Abstract
A pentaerythritol glycoside (PG) was synthesized and then its corrosion inhibition for carbon steel in 3.5% NaCl saturated Ca(OH)(2) solution was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), as well as atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Results indicated that the PG compound acted as an anodic inhibitor by strong chemical interaction with the carbon steel surface according to the Langmuir adsorption isotherm. The inhibition efficiency and pitting potential on carbon steel increased with increasing concentrations of the inhibitor. Zero charge potential measurements and quantum chemical calculations provided insight into the inhibition mechanism, which are discussed. (C) 2011 Elsevier Ltd. All rights reserved.