Inhibition effect of newly synthesized benzoxanthonesderivative on hydrogen evolution and Q235 steelcorrosion in 15% HCl under hydrodynamic condition: Combination of experimental,surface and computational study |
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| Affiliation: | 1. School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, Sichuan, China;2. Department of Chemistry, School of Chemical Engineering and Physical Science, Faculty of Technology and Sciences, Lovely Professional University, Phagwara, P.O.Box, 144411, India;3. Center of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia;4. Department of Chemistry, University of Engineering and Management, University Area, Action Area III, B/5, Newtown, Kolkata, 700160, India;5. Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia;6. Sivas Cumhuriyet University, Health Services Vocational School, Department of Pharmacy, 58140, Sivas, Turkey;7. Apply Chemistry-Physic Team, Materials and Environment Laboratory, IBN ZOHR Sciences Faculty, B.P.8106, CitéDakhla, Agadir, Morocco |
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| Abstract: | The investigation of this study deals with the synthesis using green synthetic approach, characterization and application of benzoxanthones derivative namely 9,9-Dimethyl-12-p-tolyl-8, 9,10, 12-tetrahydrobenzoa]xanthen-1-one (TBX) for the inhibition of Q235 steel corrosion in 15% HCl under dynamic condition. The results of EIS confirmed towards the increment in Rct values with rise in concentration. Additionally, results of PDP reveals that TBX is cathodic type inhibitor. The maximum inhibitive excellency of TBX was given at 200 mg/L with the value of 92.3%. The increasing temperature tends to increase in corrosion rate. Langmuir adsorption isotherm provides the excellent fitting. The surface morphology and adsorption of TBX molecules were confirmed using scanning electron microscopy (SEM) and X-photo electron microscopy (XPS). Density functional theory (DFT) and Molecular dynamic simulation (MD) confirmed that corrosion inhibition efficiency ranking obtained for studied molecules is TBXH+> TBX. |
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| Keywords: | Corrosion Acidization Q235 steel XPS DFT MD |
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