A. S. Fouda

Mansoura University · Department of Chemistry

The current work looks at the inhibitory effects of a diolefinic dye, namely 1,4-bis((E)-2-(3-methyl-2,3-dihydrobenzo[d]thiazol-2-yl) vinyl) benzene iodide salt, in relation to CS corrosion mitigation in hydrochloric acid (HCl) environment. This study uses a variety of experimental methodologies, including weight loss (WL) analysis, electrochemical...

Seven new thiophene hydrazide derivatives were prepared through the coupling of active methylene of 2-cyano-N'-(thiophen-2-ylmethylene)acetohydrazide with diazonium salts of aromatic amines, and heterocyclic amines at 0–5°C in pyridine. The new hydrazonothiophene derivatives could exist in two possible tautomeric forms, which are the enol and keto...

Two 3D-supramolecular coordination polymers (SCP1 & SCP2) have been synthesized and characterized by physicochemical and spectroscopic methods. In a solution of 1.0 M HCl, SCPs were used to prevent corrosion of carbon steel (CS). The inhibition productivity (%η) rises as the synthetic inhibitor dose rises, and the opposite is true as the temperatur...

Novel supramolecular (SCPs) compounds such as: {[Ni (EIN)4(NCS)2]}, SCP1 and {[Co (EIN)4 (NCS)2]}, SCP2 have been studied using weight loss (WL) and electrochemical tests on the corrosion performance of stainless steel 304 (SS304) in 1.0 M hydrochloric acid (HCl) solution. The experimental results revealed that inhibition efficacy (η%) rises with i...

The emergence of pest resistance of Spodoptera littoralis (order; Lepidoptera, family; Noctuidae) towards the large scale of different classes of insecticides necessitates the development of some new poly-functionalized biphenyl and azabiphenyl with highly anticipated insecticidal bioresponse. Four new biphenyl carboxamidines 4a-d and four aza-anal...

A Novel 5,10,15,20-tetra (thiophen-2-yl) porphyrin (P1) and 5,10,15,20-tetrakis (5-Bromothiophen-2-yl) porphyrin (P2) were successfully synthesized, and their chemical structures were proved based on its correct elemental analysis and spectral data (IR and ¹ H-NMR). These compounds were examined as corrosion inhibitors for stainless steel 304 (SS30...

In order to demonstrate the effect of Nano-metal organic frameworks, [Cu2(CN)4(Ph3Sn) (Pyz2-caH)2] (NMOF1) and [∞3[Cu(CN)2(Me3Sn)(Pyz)]] (NMOF2) as corrosion inhibitors for C-steel in 0.5 M sulfuric acid solutions, the following methods were utilized: mass reduction (MR), potentiodynamic polarization (PDP), and AC electrochemical impedance (EIS). T...

Two new acrylamide derivatives were prepared namely: “N-(bis(2-hydroxyethyl) carbamothioyl) acrylamide (BHCA) and N-((2-hydroxyethyl) carbamothioyl) acrylamide( HCA) and their chemical structures were analyzed and confirmed using IR and 1H NMR”. These chemicals were investigated as corrosion inhibitors for carbon steel (CS) in 1 M HCl medium using...

A novel solar tri-generation system combined with an Organic Rankin Cycle (ORC), humidification dehumidification water desalination system (HDH), and a desiccant cooling system (DCS) for electrical power generation, water desalination, and air-conditioning is investigated numerically. Such a system is intended for tiny and medium-sized structures i...

Weight loss (WL), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PP) are utilized to investigate the effectiveness of prepared Schiff base N,N′-bis(salicylidene)-butylene-1,4-diamine (SB) as an inhibitor for the dissolution of carbon steel (CS) in 0.5 mol L ⁻¹ HCl. The SB structure is confirmed by ¹ HNMR and FTIR. T...

7 This study showcases the innovative synthesis of 4-formyl-N-hexadecyl-N,N-dimethylbenzenaminium bromide (FHDB) using a reaction of 1-Bromohexadecane and 4-di methyl amino benzaldehyde. The compound was then characterized through various techniques such as FT-IR, 1 H-NMR, and 13 C-NMR, along with physical property measurements. Thereafter, the syn...

Two new acrylamide derivatives were prepared namely: “N-(bis(2-hydroxyethyl) carbamothioyl) acrylamide (BHCA) and N-((2-hydroxyethyl) carbamothioyl) acrylamide( HCA) and their chemical structures were analyzed and confirmed using IR and 1H NMR”. These chemicals were investigated as corrosion inhibitors for carbon steel (CS) in 1 M HCl medium using...

Two azo derivatives, 4-((4-hydroxy-3-((4-oxo-2-thioxothiazolidin-5-ylidene)methyl)phenyl) diazinyl) benzenesulfonic acid (TODB) and 4-((3-((4,4-dimethyl-2,6-dioxocyclohexylidene) methyl)-4-hydroxyphenyl)diazinyl) benzenesulfonic acid (DODB) were synthesized and characterized using Fourier-transform infrared spectroscopy (FTIR), proton nuclear magne...

New synthesized coumarin-buta-1, 3-diene conjugated dyes having donor-acceptor structure were prepared. The characterization of the synthesized dyes was approved by using IR, 1 H NMR and Mass fragmentation analysis. The adsorption properties for the synthesized coumarin compounds were determined by experimental and theoretical methods. The corrosio...

Poly-generation systems are an exciting new technology that provide an alternative to separating existing energy production methods in buildings. A poly-generation system enables the efficient simultaneous production of heating, cooling, fresh water, and electricity, resulting in many technological, economic, energy recovery, and environmental adva...

Three novel p-phenylenediamine and benzidine coumarin derivatives were synthetized, namely: 4,4′-((((1,4-phenylenebis(azaneylylidene))bis(ethan-1-yl-1-ylidene))bis(2-oxo-2H-chromene-3,6-diyl))bis(diazene-2,1-diyl))dibenzenesulfonic acid (PhODB), 4,4′-(((-([1,1′-biphenyl]-4,4′-diylbis(azaneylylidene))bis(ethan-1-yl-1-ylidene))bis(2-oxo-2H-chromene-3...

The effect of sodium metamizole as a corrosion inhibitor for carbon steel (CS) in 1 M hydrochloric acid at various concentrations was studied by using chemical (weight loss, WL) and electrochemical [electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP)] methods. The results o...

Inhibition of copper corrosion by some pyrimidinone derivatives, namely; (E)-N-(3-((1,3-dimethyl-2,4,6-trioxohexahydropyrimidin-5-yl)diazenyl)-2,5-diethoxyphenyl)benzamide (MA-975) and(E)-6-(4-((4-chlorophenyl)diazenyl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-1,3 dimethylpyrimidine-2,4(1H,3H)-dione (MA-978C) in 1.0 M nitric acid (HNO3) was stud...

Potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS), tests, mass loss (ML) and Hydrogen evolutions (HE) methods were used to examine the effects of the newly plant extracted compound (Cystosiera myrica). All these quantities exhibited that the effectiveness of inhibition increase with a rise in inhibitor concentration...

Three newly ionic liquids namely, 1-bnzyl-2-methyl-3-octyl-1H-imidazol-3-ium bromide, 1-bnzyl-3-decyl-2-methyl-1H-imidazol-3-ium bromide, and 1-bnzyl-3-dodecyl-2-methyl-1H-imidazol-3-ium bromide are synthesized and their chemical structures characterized via different spectra techniques (FT-IR, elemental analysis, and ¹H-NMR). The corrosion inhibit...

We reported here, the corrosion inhibition of carbon steel (CS) in H2SO4 media by Ficus carica leaves extract as green sustainable inhibitor. This study was investigated using mass loss method (ML), potentiodynamic polarization (PDP), electrochemical frequency modulation (EFM) and electrochemical impedance spectroscopy (EIS). As well as the metal s...

Morus Alba extract was studied as the corrosion inhibitor for copper (Cu) in 2 molar HNO3 utilizing chemical and electrochemical tests. From chemical tests, one can observe that with increasing doses of Morus Alba extract up to 300 ppm the inhibition efficacy was increased to 93.2% (after 3 hours) at 25°C. The adsorption of Morus Alba extract on Cu...

SADRŽAJ - CONTENT Scientific papers M.Cenoui, I. Himer, R. Touir, M. Ebn Touhami, A. Dermaj, N. Hajjaji, H. El Kafssaoui Synergistic influence of molybdate ions on the inhibition of corrosion and scale of ordinary steel in cooling water system by new organic compound ............3 Noreen Antony, H. Benita Sherine, Susai Rajendran Investigation of t...

SADRŽAJ - CONTENT Review paper Nebojša D. Nikolić Fundamental aspects of copper electrodeposition in the hydrogen co-deposition range ................................197 Scientific papers A. S. Fouda, G. Y. Elewady, A. El-Askalany, K. Shalabi Inhibition of aluminum corrosion in hydrochloric acid media by three Schiff base compounds....................

The inhibition impact of Plantago major leaves extract on carbon steel (CS) which immersed in 0.5 M H2SO4 media was investigated by several methods such as mass loss method (ML), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), and electrochemical frequency modulation (EFM). Data obtained from different measurements...

We reported here, the corrosion inhibition of carbon steel (CS) in H2SO4 media by Ficus carica leaves extract as green sustainable inhibitor. This study was investigated using mass loss method (ML), potentiodynamic polarization (PDP), electrochemical frequency modulation (EFM) and electrochemical impedance spectroscopy (EIS). As well as the metal s...

SADRŽAJ – CONTENT Review paper M. Sangeetha, S. Rajendran, T. S. Muthumegala, A. Krishnaveni Green corrosion inhibitors-An Overview ............................3 Scientific papers A. S. Fouda, Ahmed Abdel Nazeer, E. A. Ashour Amino acids as environmentally-friendly corrosion inhibitors for Cu10Ni alloy in sulfide-polluted salt water: Experimental a...

SADRŽAJ - CONTENT Review paper Nebojša D. Nikolić Fundamental aspects of copper electrodeposition in the hydrogen co-deposition range ................................197 Scientific papers A. S. Fouda, G. Y. Elewady, A. El-Askalany, K. Shalabi Inhibition of aluminum corrosion in hydrochloric acid media by three Schiff base compounds....................

Corrosion of metals is an important economic problem globally. The use of corrosion inhibitors, mainly those based on surfactants, is one of the most efficient ways of defending metal surfaces against corrosion. This study aimed to synthesis some novel ethoxylated and sulfonated fatty alcohol surfactants. The symbols B1, B2, and B3 were pointed to...

The inhibition influence of Al dissolution by Cumin (Cuminum Cyminum extract, CCE) in 2 M HCl has been examined by electrochemical investigations like Tafel polarization (TP), electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and chemical measurements as gasometrical and gravimetric methods at varied temperatu...

Novel fatty alcohol ethoxylate surfactants (NFAES) C1:(C12–C14–EO30) and C2:(C16–C18–EO30) were synthesized and characterized, and the effect of an increase of the hydrocarbon chain length at the same numbers of ethoxylated groups of these surfactants on the corrosion of mild steel (MS) in 1 M HCl was studied by different methods. These have reveal...

Hydroxy-ethoxy N-(2-(2-hydroxyethoxy)ethyl)-N,N-dimethyloctan-1-aminium bromide (HEDOB) cationic surfactant had been prepared and investigated as a steel protector against its corrosion in 1.0 M HCl. Different techniques such as electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, electrochemical frequency modulation (EFM) an...

A low energy HDH (humidification-dehumidification) and AC (air-conditioning) hybrid system using an efficient design of dehumidifier (strips-finned helical coil) and packing pad material (cellulose paper in bee-hive structure) is proposed. An experimental investigation of the performance of the proposed system is conducted for wide ranges of air an...

Conocarpus Erectus extract was examined as a green corrosion inhibitor for Al in 1 M HCl and evaluated by different methods (chemical & electrochemical methods). Surface checks were used to illustrate the importance of this green extract to Al's corrosion inhibition process. The inhibition efficiency (%IE) increased with the raising of both Conocar...

In this study, the employment of Ashwagandha extract (AE) as a green sustainable corrosion inhibitor for aluminum in one molar hydrochloric acid solutions was examined utilizing "mass loss (ML), electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP) measurements". The surface e...

Expired Bromocriptine drug was investigated as a possible green inhibitor for the erosion of C-steel (CS) in 1M HCl medium. Weight loss (WL) and electrochemical techniques were utilized for studying corrosion rate. Electrochemical measurements infer that the drug behaves as a mixed type with a predominantly anodic effect, double layer capacitance (...

In hot and dry climatic zones, direct evaporative cooling (DEC) system is used as an economical and efficient alternative to traditional air conditioning systems. The present paper concerns comprehensive experimental investigations and analysis of heat and mass transfer characteristics and thermal performance parameters of a bee-hive construction o...

New nonionic Fatty Alcohol Ethoxylate (FAEO) surfactant is prepared by the interaction of Vegarol 1214 (Lauryl myristyl alcohol) with specific units (n = 30) of ethylene oxide (EO) gas that is appointed as LMAEO-30 and its structure is characterized by FT-IR and 1H-NMR spectra. Also, the characteristics of surface activity are determined by surface...

2-((2-Aminophenyl)thio)-4,6-dimethylnicotinonitrile (APTDN) and 4,6-dimethyl-2-(phenylamino) nicotinonitrile (DPAN) as new organic derivatives were investigated as corrosion inhibitors for C-steel in 1 M HCl at various temperatures (25–45 °C) using chemical and electrochemical methods. The adsorption of inhibitors on the C-steel surface fits to Lan...

Novel anionic 4-tert-Octylphenol Ethoxylated Phosphate Dipotassium salt (ethoxylated with 5 moles of ethylene oxide) surfactant was prepared and designated as OP-5-EO-K2PO, was characterized for its structure using spectroscopic measurements, in addition, its surface properties were investigated. The results indicated that OP-5-EO-K2PO exhibits exc...

In this study, the inhibition effect of Tamarix Boveana (TB) extract on Cu corrosion in 1 mol L–1 (HNO3 + H3PO4) mixture was studied. Electrochemical techniques such as (potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM)) and non-electrochemical technique such as mass loss...

In this paper a comprehensive experimental parametric study on the performance of a new evaporative cooling pad type made of cellulose papers in bee-hive structure is presented. Four different pad sizes of face area 0.335 × 0.390 m² and thicknesses 35, 70, 105, and 140 mm are examined. The tests are carried out in a wind tunnel adapted with the eva...

Theeffect of 6-[5-(4-methoxyphenyl) furan-2-yl] nicotinonitrile (MA-1160) as a new corrosion inhibitor for carbon steel (CS) in hydrochloric acid (HCl) solution was investigated using weight loss (WL), atomic absorption spectroscopy (AAS) and electrochemical measurements. The surface morphology of CS was tested using: scanning electron microscopy,...

The aim of this study is to examine Achillea santolina extract (ASE) as a green inhibitor for carbon steel (CS) in corrosive medium (1.0 M HCl) under different experimental conditions. This investigation occurs by using mass loss (ML), open-circuit potential, potentiodynamic polarization (PP), electrochemical frequency modulation (EFM), AC impedanc...

The detailed study of Pistacia Atlantica Extract (PAE) as corrosion inhibitor for copper and α-brass in nitric acid solution has been performed through potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM), scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) measureme...

The corrosion inhibition behavior in the presence of some surfactants in 1 M HCl medium was examined by mass loss, AC impedance spectroscopy (EIS), potentiodynamic polarization, electrochemical frequency modulation, and surface (scanning electron microscopy, atomic force microscopy) techniques. The C-steel protection rates increased with the increa...

The inhibition effect of expired Simvastan drug on Cu corrosion in 1 M HNO3 at 25°C was investigated using potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrical frequency modulation (EFM) as well as weight loss (WL) measurements. Electrochemical studies data support that examined expired drug is an efficient...

The inhibiting effect of an Alfalfa extract in a corrosive medium (3.5% NaCl + 16 ppm Na2S) on the corrosion of carbon steel was studied by the mass loss measurements, potentiodynamic polarization, and electrochemical impedance spectroscopy. The results showed that the inhibition efficiency, increases with an increase in the extract dose but decrea...

The inhibiting action of three derivatives of azole compounds has been investigated for the corrosion of two aluminum-silicon alloys in 0.5 M HCl solution using some electrochemical measurements such as potentiodynamic polarization, electrochemical impedance, and electrochemical frequency modulation. The morphology of the surface was examined by th...

The effect of some new nonionic surfactants namely, N1,N2,N3-tris ((14-amino-3,6,9,12-tetraazatetradecyl) carbamothioyl) propane-1,2,3-tricarboxamide (compound I) and N1,N2,N3-tris((2-hydroxyethyl) carbamothioyl) propane-1,2,3-tricarboxamide (compound II) for the corrosion of low carbon steel (LCS) in 1.0 M HCl was evaluated by electrochemical and...

This study aimed at the application of hydrazine derivatives (HZD) in acid media as corrosion inhibitors of stainless steel 201 (SS201). In the chemical and electrochemical technique, SS201 is the constructional material widely used. The various factors, which influence the corrosion inhibition efficiency of different HZD have been discussed. Diffe...

The effect of [2,2′:5′,2″-terthiophene]-5-carbonitrile and its derivatives on carbon steel surface in 1 M HCl solution was deliberated at (25 °C) using weight loss technique in addition to electrochemical techniques such as electrochemical frequency modulation, potentiodynamic polarization, and electrochemical impedance spectroscopy. Results gained...

Three compounds of azole derivatives were investigated as inhibitors for the dissolution of aluminum (Al) in 0.5 M HCl solution using electrochemical techniques, e.g., potentiodynamic polarization, electrochemical impedance spectroscopy electrochemical frequency modulation (EFM). The surface of Al was examined in the absence and presence of the som...

The corrosion behavior of mass steel (MS) in 5% NH2SO3H solution in the nonexistence and existence of aqueous extract of Juniperus was investigated using mass loss (ML), potentiostatic polarization (PP), AC electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) techniques. It was found that, the inhibition efficien...

The inhibition effect of fluorophenyl‑2,2′‑bichalcophenes on corrosion of carbon steel (C-steel) in 1.0 M hydrochloric acid (HCl) was investigated using various experimental techniques combined with quantum chemical calculations and atomistic modeling methodologies. Significant corrosion protection was demonstrated with the addition of the investig...

Transient performance analysis and investigation of three proposed solar powered humidification–dehumidification (HDH) water desalination systems: single stage (SS), double stages (DS) and modified double stages (MDS) systems are presented for hot and humid cities. Open/closed modes of operations of the systems are also investigated. A parametric s...

The inhibiting effect of Ailanthus altissima aqueous extract, as a corrosion inhibitor for Zn in a 0.5 M HCl solution, has been evaluated by weight loss (WL), hydrogen evolution (HE), potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM) techniques. Obtained results showed tha...