Composites of Graphene Oxide and Zeolite as a Potential Inhibitor for Alkaline Corrosion of Aluminium

Abstract

Background/Objective: Metals and alloys react with corrosive media to form a stable compound, which results loss of metal and the metal surface gets corroded. Aluminium has a lot of application and so resisting aluminium corrosion is a vital step. Methodology: The inhibition ability of graphene oxide composite with ZSM-5 and MCM-41 towards aluminium corrosion in 0.01 M NaOH solution was studied using weight-loss measurement, potentiodynamic polarization curves, and SEM-EDS methods. Findings: The data from weight loss measurements, tafel plots, SEM micrographs and amperometric study in alkaline medium compared to blank solution indicated an enhancement of inhibition efficiency of graphene in the form of composite with ZSM-5 and MCM-41. SEM-EDS analyses confirmed less corrosion damage of aluminium owing to the surface adsorption of the composites. Application: This interesting study can be very vital in the field of corrosion and battery science mainly in Al-air cell.