Synthesis and investigations of metal oxides nanoparticles as corrosion inhibitors for copper alloy in sulfuric acid

Abstract

The molecular structure of the zinc oxide, cadmium oxide nanoparticles, and poly [2-N-(allyl) amine-5-(4-chloro phenyl) -1,3,4-thiadiazole] solution was ascertained by FT-IR, HNMR, XRD, TEM, and FE-SEM after the materials were produced. Using a standard microscope and the weight loss method, the corrosion inhibitions of these compounds on copper alloy in 1M sulfuric acid were assessed. The investigation on weight loss demonstrated that these chemicals' inhibitory efficacy varies with solution temperature and rises with increasing weight. Additionally, the different thermodynamic parameters were computed in order to look into the mechanism of corrosion inhibition. The Langmuir adsorption isotherm was followed by the adsorption of nanomaterial the surface of copper alloy in acid. Using a standard microscope, the surface properties of inhibited and uninhibited copper alloy samples were examined. There was more than 85% inhibition. The creation of a protective adsorption surface was due to the significant inhibitory efficiency of the copper alloy. Using standard microscopy, the surface properties of inhibited and uninhibited alloy samples were examined. The calculated values of the thermodynamic functions (ΔG, ΔH, and ΔS) on the synthesized samples indicated that the corrosion of the copper alloy is spontaneous, endothermic, and unrandom.