Abstract
Copper nanocomposites were synthesized by complexation reaction between aqueous extracts of the waste onion peels and aqueous copper salt, characterized and investigated as corrosion inhibitor for steel in oilfield acid wash or descaling solution. Nanostructure and colloidal analyses of the nanocomposite reveal predominantly polydisperse agglomerates of particle sizes between 32 and 98 nm and average zeta potential of −36.8 mV. Composite surface was found to be rich in O and N which act as active sites that facilitate adsorption of composite on X80 steel surface and consequently protect the surface against corrosion in 1 M HCl. Corrosion process was monitored by electrochemical and weight loss techniques while corrosion products and surface protection were examined by FTIR, SEM/EDS and AFM. Addition of small amounts of CS-EX to 1 M HCl results in decreased corrosion rate, current density and surface roughness but increased charge transfer resistance and efficient corrosion protection even at high temperature. CS-EX acts as mixed type inhibitor and reduces excessive pitting damage and surface roughness due to acid corrosion by 69.2%. Novel application of CS-EX as promising efficient and cost effective alternative green anticorrosion additive for oilfield acid wash and pickling solutions has therefore been demonstrated.
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.
