Abstract
A new type of pyridazine-based derivative namely, 2-[(6-ethoxy-3-pyridazinyl) thiyl]-N, N-diethylacetamide (EPD), was synthesized and developed as a corrosion inhibitor of copper in 0.5 M sulfuric acid. Electrochemical and surface characterization were combined to investigate the inhibition performance of EPD. The results show that copper corrosion in sulfuric solution is efficiently inhibited by EPD at different temperatures. The maximun inhibition efficiency (η) obtained by electrochemical impedance spectroscopy (EIS) are 94.1% at 298 K, 93.2% at 308 K, 91.3% at 318 K for 4 mM EPD. The favorable performance is ascribed to the formation of EPD adsorption films on the surface of the copper, which follows the Langmuir adsorption isotherm. Besides, theoretical calculations further revealed the interaction between EPD and copper surface and the mechanism of inhibition of EPD.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
