Quantum and electrochemical studies of the hydrogen evolution findings in corrosion reactions of mild steel in acidic medium

The electrochemical techniques included electrochemical impedance spectroscopy (EIS) and Tafel polarization. Changing GABA concentrations greatly impacted the rate of both the corrosion reaction and the evolution of hydrogen. The findings of polarization suggested that GABA is a mixed inhibitor of form. Rising the temperature (298–338 K) resulted in an intensification in the rate of hydrogen progression and a diminution in their steel's full superficial confrontation measure (RT) or comparative coverage width (1/CT). The inhibition capacity of GABA was demonstrated by the quantity control including E_HOMO, E_LUMO, the energy gap (∆E) and the segment of relocated electron (∆E).