Hydrogen Production and Electrochemical Investigations of an Environmentally Salicornia Extract as a Green Corrosion Inhibitor in a 1 M HCl Solution

Mahmoud, S. B.; Elaraby, A.; Zaki, E. G.; Abd-El-Raouf, M.

doi:10.21608/ejchem.2024.316943.10308

Hydrogen Production and Electrochemical Investigations of an Environmentally Salicornia Extract as a Green Corrosion Inhibitor in a 1 M HCl Solution

Document Type : Original Article

Authors

¹ Faculty of Girls, Arts, Science and Education. Ain Shams University, Cairo, Egypt

² Egyptian Petroleum Research Institute (EPRI), Nasr City, 11727 Cairo, Egypt

³ Sinai University , Kantra Branch, Center of Scientific Reasearch and Sustainable Development, Ismailia, Egypt

10.21608/ejchem.2024.316943.10308

Abstract

A promising method for producing pure hydrogen energy from the dissolution of carbon steel by green inhibitors. Salicornia green inhibitor used for C-steel protection due to both ecological and economic importance (low cost). An evaluation was conducted on the effectiveness of Salicornia extract as a corrosion inhibitor using Potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and Hydrogen evolution ,Salicornia are capable of delaying the corrosion of carbon steel (C-steal) in 1 M HCl by forming an adsorbed protective layer of Salicornia molecules. and decrease the reaction of C-steal with the corrosive media consequently hydrogen evolution decreases. The inhibition efficiency for Salicornia inhibitor reached to 93.8% indicating that Salicornia extract acts as good inhibitor. Salicornia molecules adsorb according to the Langmuir isotherm with regression coefficient (R2 = 0.9997). The anticorrosion performance of Salicornia inhibitor was confirmed by Scanning Electron Microscopy (SEM).

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