khalaf.ali

Khalaf Ali Fayez Abuamra

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم النبات والميكروبيولوجى -كلية العلوم -جامعة سوهاج

2

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Corrosion inhibition


Carbon steel pipelines corrosion inhibition by some novel imines during acidizing treatment of oil wells: Electrochemical and quantum chemical studies
The corrosion protection of the equipments and vessels is one of chief concerns of the maintenance and design engineers. From this point of view, three novel imine compounds were prepared and their structures were characterized by X-ray, 13C-NMR, 1H-NMR, mass, UV-Vis, FT-IR, spectral data and elemental analyses. The corrosion inhibition of the investigated inhibitors towards carbon steel in 15% HCl ... إقراء المزيد

2018-09-11 12:23:27 الكلمات المفتاحية Carbon steel alloy, Corrosion inhibition, Schiff base compounds, EIS, SEM, Quantum chemical calculations, IR, NMR,
Corrosion inhibition of carbon steel pipelines by some novel Schiff base compounds during acidizing treatment of oil wells studied by electrochemical and quantum chemical methods
Three novel Schiff bases compounds were prepared and their structures were characterized by X-ray, 13C-NMR, 1H-NMR, mass, UV–Vis, FT-IR, spectral data and elemental analyses. The corrosion inhibition of the investigated inhibitors towards carbon steel in 15% HCl was investigated by using electrochemical measurements (EIS, LPR corrosion rate and Tafel plots), SEM, EDX and quantum chemical methods. The results showed that, ... إقراء المزيد

2018-09-11 16:44:40 الكلمات المفتاحية Carbon steel, Schiff bases, Corrosion inhibition, SEM, Electrochemical techniques, quantum approaches,
Electrochemical and theoretical quantum approaches on the inhibition of C1018 carbon steel corrosion in acidic medium  using some newly  phenolic Schiff bases compounds
Two novel Schiff bases, 5-bromo-2-[(_E_)-(pyridin-3-ylimino)methyl]phenol (HBSAP) and 5-bromo-2-[(E)-(quinolin-8-ylimino)methyl]phenol (HBSAQ) have been synthesized. They have been characterized by elemental analysis and spectroscopic techniques (UV–Vis, IR and NMR). Moreover, the molecular structure of HBSAP and HBSAQ compounds are determined by single crystal X-ray diffraction technique. The inhibition activity of HBSAP and HBSAQ for carbon steel in 3.5% NaCl + 0.1 M HCl ... إقراء المزيد

Investigation of adsorption and inhibition effects of some novel anil compounds towards mild steel in H2SO4 solution: Electrochemical and theoretical quantum studies
A novel anil compounds, 1-{(_Z_)-[(3,5dimethylphenyl)imino]methyl}naphthalen-2-ol (HNMA) and 5- (diethylamino) -2- {(_Z_)- [(3,5-dimethylphenyl)imino] methyl} phenol (DMSMA), were prepared and characterized on the basis of elemental analyses, X-ray, 1H NMR, 13C NMR, UV–Vis and IR spectral data. Their inhibiting performance for mild steel in 0.5 M H2SO4solution was evaluated by a series of techniques including potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electronic ... إقراء المزيد

2018-10-03 08:55:52 الكلمات المفتاحية Cationic surfactants, Corrosion inhibition, Carbon steel, Cyclohexene, EIS, SEM, EDX,
Novel Quaternary Ammonium-Based Cationic Surfactants: Synthesis, Surface Activity and Evaluation as Corrosion Inhibitors for C1018 Carbon Steel in Acidic Chloride Solution
A novel class of quaternary ammonium-based cationic surfactants is synthesized and characterized via spectroscopic methods (FTIR, 1 HNMR and13 C NMR). The surface properties, foaming power and biodegrad-ability of the synthesized cationic surfactants are deter-mined using the surface tension technique. The protection performance with their adsorption mecha-nisms for carbon steel is evaluated in a 15% HCl solu-tion by a series ... إقراء المزيد