Document Details

Document Type : Thesis 
Document Title :
Corrosion Inhibition Study of Selected Metals in Acidic Medium by Eco- friendly Plant Extracts Doped with Metallic Oxide Nanoparticles
دراسة تثبيط التآكل لمعادن مختارة في الوسط الحمضي باستخدام مستخلصات نباتية صديقة للبيئة مطعمة بحبيبات من أكاسيد الفلزات متناهية الصغر
 
Subject : Faculty of Science 
Document Language : Arabic 
Abstract : The aim of this thesis is to find non-toxic, cheap, nanoparticles and effective green corrosion inhibitors. Inhibitory effects of the inhibitors (Arabic Gum, Myrrh, ZnO-NPs, Fe2O3-NPs, green ZnO-NPs and green Fe2O3-NPs) on steel in 1 M HCl was investigated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). Inhibitor effectiveness was studied as a function of concentrations in the range (0.025-0.2 g/L) at 30 ◦C. The results showed that the studied compounds can work as effective corrosion inhibitors, and their inhibition efficiencies increased with an increase in inhibitor concentration. The surface of the metal was imaged using Optical Microscopy Test (OMT). A good correlation was found between the calculated parameters from measurements PDP and EIS and experimental results. Optical microscopy tests were utilized to surface characterisation. TEM and XRD were used to characterisation the morphology of oxide metals nanoparticles. The results show that the corrosion rate for steel decreasing with increasing inhibitors concentrations. Optical microscopy analysis confirmed the formation of protective film on the steel surface. The adsorption of inhibitors on the steel surface was found to be spontaneous process and to follow the Langmuir adsorption isotherm. Good correlation between the inhibitor effective constituents and its inhibitory action was obtained. 
Supervisor : Prof. Dr. Aisha M. Turkustani 
Thesis Type : Doctorate Thesis 
Publishing Year : 1441 AH
2020 AD 
Co-Supervisor : Prof. Dr. Mohamed Abdel Salam 
Added Date : Friday, June 12, 2020 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ريما حسن الظاهريAldahir, Reema HassanResearcherDoctorate 

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