Abstract
Green synthesis has become very significant for sustainable development and health concern. The multicomponent is applied as an eco-friendly procedure to synthesize N-((2-aminoethyl) carbamothioyl) acrylamide (ACA). The structure of ACA is verified using FTIR and 1HNMR spectroscopy. The inhibitory effect of ACA for carbon steel in 1 M HCl is assessed using electrochemical measurements and weight loss. The Langmuir adsorption isotherm model fits the inhibitive effect caused by adsorption on the metal surface. Additionally, the surface morphology is examined using SEM and AFM. The photos demonstrate a smoothing of the protective surface and a 0.45 nm reduction in average roughness. Different quantum descriptors using DFT theory were calculated and found to be corroborated with the experimental results. By creating successive resistive adsorption films, the ACA, at a concentration of 10−3 M, protects the carbon steel in 1MHCl with a 97% efficiency as a mixed-type inhibitor.
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