A5072884995- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Hydrogen embrittlement and corrosion behaviors in metals
- Synthesis and biological activity
- Metal complexes synthesis and properties
- Ionic liquids properties and applications
- Electrochemical Analysis and Applications
- Synthesis and Characterization of Heterocyclic Compounds
- Computational Drug Discovery Methods
- Electrocatalysts for Energy Conversion
- Bioactive Compounds and Antitumor Agents
- Advanced Photocatalysis Techniques
- Calcium Carbonate Crystallization and Inhibition
- Multicomponent Synthesis of Heterocycles
- Anodic Oxide Films and Nanostructures
- Synthesis of Tetrazole Derivatives
- Membrane-based Ion Separation Techniques
- Nanomaterials for catalytic reactions
- Organic Light-Emitting Diodes Research
- Advanced Nanomaterials in Catalysis
- Metal Extraction and Bioleaching
- Conducting polymers and applications
- Fuel Cells and Related Materials
- Analytical Chemistry and Sensors
- Oxidative Organic Chemistry Reactions
Northern Border University
2018-2025
The corrosion inhibition of (
5-(Benzylthio)-1H-tetrazole (BST), ethyl-1H-tetrazole-5-acetate (ETA), and 5-(ethylthio)-1H-tetrazole (EST) were utilized to inhibit the pitting general corrosion of nickel in dilute sulfuric acid solutions. The galvanostatic anodic polarization under a constant current mass loss measurement complemented by scanning electron microscope is utilized. tetrazole inhibitors retard shifting potential, Ep into more noble direction while lowering amount electricity, Qinh, needed attain Ep....
2-(2-Hydroxyethylamino) ethanol (EA), dodecanoic acid (DA), and a freshly prepared ionic liquid named bis(2-hydroxyethyl) ammonium dodecanoate (ADD) were exercised as mitigators towards the corrosion of aluminum production hydrogen in 2.0 M HCl. The study was performed by gravimetry, gasometry, potential-time measurements, electrochemical methods. examined concentration range such inhibitors varied between 5×10-6M 5×10-3M. amount generated is enhanced with temperature lowered increasing...
The pitting corrosion current of C-steel in 50% diluted oilfield-produced water devoid and containing various amounts some purine inhibitors, 9H-purine-2,6-diamine, Inh I, 9H-purin-6-amine, II, 2-amino-1H-purin-6(9H)-one, III was followed under natural conditions.In the inhibitor-free solution, starts to initiate after an induction period, τ which extends ~ 40 min propagates reach a steady-state current, I S .In presence inhibitor, period increases with decrease values that depends on...
AbstractThe mitigation influence of N1-(4-(dimethylamino)benzylidene)-N2-(2-((4-(dimethylamino)benzylidene)amino)ethyl)ethane1,2-diamine, (DBDB) against the corrosion carbon steel and H2 production in 1.0 M HCl solution was studied. The experimental methods mass loss, gasometry, potentiodynamic polarization, PDP, electrochemical impedance spectroscopy, EIS, were utilized. PDP data confirmed that DBDB compound attitude is a mixed-type inhibitor. protection efficacy rises with increasing added...
The SARS-CoV-2 pandemic at the end of 2019 had major worldwide health and economic consequences. Until effective vaccination approaches were created, healthcare sectors endured a shortage operative treatments that might prevent infection’s spread. As result, academia pharmaceutical industry prioritized development SARS-CoV2 antiviral medication. Pyranopyrazoles have been shown to play prominent function in chemistry drug sighting because their significant bioactive properties. We provide...
ABSTRACT New thiocarbohydrazone ligand (N′‐(( E )‐3,3‐diphenyl‐2,3‐dihydro‐1 H ‐inden‐1‐ylidene)‐2‐(( Z )‐2‐oxoindolin‐3‐ylidene)hydrazine‐1‐carbothiohydrazide; 2 L) and its Co (II), Ni Fe (III), Cu Cd Zn Mn (II) complexes were prepared in good yields ranging from 60% to 90% characterized by spectroscopic analytical tools. Uv–vis, magnetic measurements, molar conductivity, 1 H‐NMR spectra, elemental analyses, FT‐IR performed. The structural formula for the examined was improved using...
The potentiometric technique was used to study the oxide film repair and destruction on indium electrodes in 0.01 M Na2B4O7 containing various amounts of Br- ions. Higher ions, ≥ 5×10-2 M, reduces growth initiate by inducing pitting corrosion. initiation corrosion is raised with addition more concentrations ions raising temperature. Some freshly prepared ethoxylated surfactant molecules, ETO I, II, III were utilized as inhibitors resist sustain formation a layer molecules. protection...
Two of dihydropyridine derivatives, namely, 4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (DPCN) and 4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carboxamide (DPCA) were evaluated as controllers for H2 production during the dissolution Zn in dilute HCl. Different chemical (thermometry, gravimetry, gasometry) electrochemical (potentiodynamic polarization impedance) techniques used. SEM optical profilometry surface investigations some corroded un-corroded samples carried out to describe...
A novel azo dye ligand was created by diazotizing 4‐aminoantipyrine and then coupling it with 2‐aminophenol as part of a methodical investigation physiologically active compounds, 4‐aminoantipyrine. The complexes containing Cr(III), Fe(III), Mn(II), Co(II), Ni(II), Zn(II), Cu(II), Cd(II) were from the target (L). structures metal verified elemental analyses, thermogravimetric analysis–difference thermogravimetry (TGA‐DTG), conductivity measurements, infrared (IR), UV–Vis, 1 H‐nuclear...
One significant class of chemotherapeutic medicines with the ability to overcome drug resistance is metal‐based medications. The creation novel therapeutic medications distinct modes action required due rise in resistance, treatment failures, and scarcity available treatments. amino acid isoleucine interacts arylidene (synthesized from isatin 2,6‐diamino‐pyridine) forming HL Schiff base ligand, which then some transition metal ions form complexes. Thermal analysis, spectroscopy ( 1 H‐NMR,...
Due to the significant pharmacophoric role of 1,4‐naphthoquinone moiety, which is found in numerous biologically active natural products and well‐known chemotherapeutic drugs, including doxorubicin, shikonin, alkannin, a newly prepared ligand (( E )‐1‐((2‐mercaptophenyl)imino)naphthalen‐2(1 H )‐one) can be obtained from condensation 2‐aminothiophenol with diketone (1,2‐naphthoquinone) form Schiff base (HL), has been characterized using elemental analyses, FT‐IR, 1 H‐NMR, mass spectra. The...
Thiourea, (Inh I), N-allylthiourea, II), and 3-allyl-1-[(2-methoxyphenyl)methyl]thiourea III) were used to mitigate the pitting corrosion of Ni in 0.01 M H 2 SO 4 by galvanostatic polarization technique.The compounds decrease displacement potential, E pit into more positive values, with decreasing amount electricity, Q inh , required reach .The inhibition efficacy, η, was found increase raising inhibitor concentration depend on its kind.The increases sequence Inh I < II III.The inhibitive...
a b s t r c 2,2′-Dithiobis(2,3-dihydro-1,3-benzothiazole), DTDBT, was used to mitigate the destructive effect of 0.5 M HCl on C-steel surface.Gravimetry, potentiodynamic polarization, and electrochemical impedance spectroscopy, techniques as well scanning electron microscopy complemented with energy-dispersive X-ray analysis for some corroded steel samples were employed.The data different compatible confirmed inhibition DTDBT.The polarization disclosed that DTDBT molecules behave mixed-kind...
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2-((1H-Benzo[d]imdazole-2yl) thio)1(4-chlorophenyl) ethan-1-one modified chitosan (BIMC) was applied as an effective inhibitor for the corrosion of C-steel in 1.0 M HCl solution. Various techniques such gravimetry, H2 evolution, electrochemical potentiodynamic, PD, and impedance spectroscopy were included. The data indicated that rate metal dissolution is lowered with more additions BIMC compound increased temperature. EIS measurements proved presence acidic media reduces values double layer...
New pyridine-
A film of silver oxide is grown on an Ag electrode in KOH solutions, by repetitive cyclic voltammograms at a high scan rate 2500 mV/s. The formed used for the electro-oxidation ethanol dilute potassium hydroxide using voltammetry technique. Some effective experimental parameters such as concentration, scanning rate, and temperature electrocatalytic oxidation have been investigated discussed. data confirmed that behaves good catalyst electrooxidation ethanol. mechanism likely to be...