Anti-Corrosive Behaviour of Pennisetum typhoideum (Bajra) Leaf Extract Against Mild Steel in Acidic Conditions

The corrosion of metals and their alloys has prompted an increase in research efforts to lessen the harm caused by the corrosion process. The study analyses the ability of Bajra (Pennisetum typhoideum) leaf extract to suppress corrosion on metal in 0.1 N HCl solutions using thermometric and weight loss techniques. At all extract concentrations, it was shown that the leaf extract efficiently prevents mild steel corrosion. The findings of mass loss measurements indicate that inhibition efficiency increases with inhibitor concentration. Based on thermodynamic considerations, the extract's adsorption is exothermic and spontaneous. From the results and findings of the study, a physical adsorption mechanism is proposed for the adsorption of ethanol extract of Bajra leaf extract on mild steel surface. The inhibitory efficiency was projected using certain methods at 298K, 308K, and 318K temperatures. As the extract's concentration rose, the inhibition effectiveness rose as well, demonstrating the leaf extract's inhibitory ability. The thermodynamic variable demonstrates that physisorption was the mechanism of inhibition. Therefore, the current research shows a new, ecologically safe, and effective corrosion inhibitor for protecting mild steel surfaces in acidic environments