Synthesis, characterization and anticorrosive effect of 2-(phenoxy methyl)-5-phenyl-1, 3, 4-oxadiazole for mild steel in 1 M HCl: A combined experimental and computational demonstrations

Synthesis of 2-(phenoxymethyl)-5-phenyl-1, 3, 4-oxadiazole (2POM5PO) and corrosive inhibitive properties studied via weight loss (W.L.) measurement, electrochemical impedance spectroscopy, potentiodynamic polarisation measurements. Scanning Electron Microscope attached with Energy-dispersive X-ray spectroscopic methods were performed to notice morphological changes. These data were observed at a diversified dosage and temperatures the compound for 12 h s immersion of M.S. sheets in 1 M HCl electrolyte through W.L. measurements, furthermore inferred that the inhibition efficiency expanded with slow augmentations in the dosage of each moiety. The maximum inhibitory efficiency was determined which is 88.41% at 300 ppm and 298 K. E.I.S. studies demonstrated that charge transfer resistance increased on concentration increment, confirming each molecule's prohibitive attitude. Potentiodynamic polarisation plots revealed that the compounds displayed mixed type behavior. The Langmuir adsorption model was suited best, proving moiety act as a good corrosion controlling compound in 1 M Hydrochloric acid media. Computational study shows a good correlation with experimental results.