A5003295081- Corrosion Behavior and Inhibition
- Electrodeposition and Electroless Coatings
- Conducting polymers and applications
- Polymer composites and self-healing
- Metal and Thin Film Mechanics
- Concrete Corrosion and Durability
- Hydrogen embrittlement and corrosion behaviors in metals
- Electrocatalysts for Energy Conversion
- ZnO doping and properties
- Electrochemical Analysis and Applications
- Semiconductor materials and interfaces
- Flame retardant materials and properties
- Shape Memory Alloy Transformations
- High Entropy Alloys Studies
- Advanced materials and composites
- Electrospun Nanofibers in Biomedical Applications
- MXene and MAX Phase Materials
- Polymer Nanocomposites and Properties
- Structural Behavior of Reinforced Concrete
- Electronic and Structural Properties of Oxides
- Advanced Polymer Synthesis and Characterization
- Organic Electronics and Photovoltaics
- Advanced Sensor and Energy Harvesting Materials
- Polymer Nanocomposite Synthesis and Irradiation
- Lignin and Wood Chemistry
Qatar University
2014-2024
National University of Sciences and Technology
2020
National Research Centre
2014-2019
National Water Research Center
2015
The impact of AEO7 surfactant on the corrosion inhibition carbon steel (C-steel) in 0.5 M HCl solution at temperatures between 20 °C and 50 was elucidated using weight loss different electrochemical techniques. kinetics thermodynamic parameters processes were reported. efficiency (IE%) improved as concentration increased. In addition, a synergistic effect observed when 1 × 10-3 mol L-1 or higher potassium iodide (KI) added to 40 µmol inhibitor where IE% increased from 87.4% 99.2%. Also, it...
Self-healing coatings, materials that autonomically repair damage, are a method of extending the life corrosion prevention coatings. The different types self-healing coatings briefly outlined. A review evaluation methods performance using electrochemical, surface and microscopy techniques provided. Both global local reviewed with emphasis on most used electrochemical as well suggestions for alternative coating evaluation.
The utilization of self-healing cerium dioxide nanoparticles (CeO2), modified with organic corrosion inhibitors (dodecylamine (DDA) and n-methylthiourea (NMTU)), in epoxy coating is an efficient strategy for enhancing the protection increasing its lifetime. Fourier transform infrared (FTIR) spectroscopy analysis was used to confirm loading presence nanoparticles. Thermal gravimetric (TGA) measurement studies revealed amount 25% 29.75% w/w NMTU DDA nanoparticles, respectively. pH sensitive...
Smart polymeric composite coatings demonstrating multilevel self-healing characteristics were developed and characterized. The pH-responsive smart carriers synthesized by loading halloysite nanotubes (HNTs) with the benzotriazole corrosion inhibitor (BTA) using vacuum cycling method, referred to as (BTA-loaded HNTs). Similarly, mechanically triggered melamine urea-formaldehyde microcapsules encapsulated boiled linseed oil-self-healing agent (LO) denoted (MUFMCs) having an average size of a...
The present research work focuses on the synthesis, characterization and properties of novel polyelectrolyte multilayered microcapsules used as smart additives in organic coatings for corrosion protection steel parts. Urea formaldehyde encapsulated with linalyl acetate (UFMCs), sensitive to mechanical stimulus, were synthesized by situ emulsion polymerization technique. In next step, dodecylamine, working a pH stimulus inhibitor, was loaded into layers molecules, polyethylenimine (PEI)...
Dispersion of 2D carbon nitride (C3N4) nanosheets into a nickel phosphorous (NiP) matrix was successfully achieved by ultrasonication during the electroless plating NiP from an acidic bath. The morphology and thickness, elemental analysis, phases, roughness, wettability for as-plated heat-treated nanocomposite were determined scanning electron microscopy, energy-dispersive X-ray spectroscopy, diffraction, atomic force contact angle measurements, respectively. C3N4 showed homogeneous...
Corrosion and heat treatment studies are essential to predict the performance sustainability of coatings in harsh environments, such as oil gas industries. In this study, nickel phosphorus (NiP)-titanium (Ti) nanocomposite (NiP-Ti nanoparticles (TNPs)), containing various concentrations Ti (TNPs) were deposited on high strength low alloy (HSLA) steel through electroless deposition processing. The 0.25, 0.50 1.0 g/L TNPs dispersed bath, obtain NiP-TNPs comprising different contents. Further,...
Halloysite nanotubes (HNTs) and their modifications with either NH2 (HNT-NH2) or NH2/Polypyrrole (HNT–NH2–PPy) were electroless-deposited into the NiP matrix for first time to form NiP/HNT, NiP/HNT-NH2 NiP/HNT–NH2–PPy nanocomposite coatings. The as-prepared coatings heat-treated at 400 °C 1 h. transformation in microstructure, nanoindentation, Vicker's micro-hardness, surface morphology, anti-corrosive properties of all prepared composite compared HNT-free (NiP) coating. Incorporating HNTs...
In order to improve the toughness of Ni-P coatings, Ti particles were introduced into plating solution produce a Ni-P-Ti composite coating (on API-X100 steel), which was subsequently annealed form superelastic NiTi precipitates within coating. The effect content on deposition rate and surface morphology coatings studied. A detailed investigation influence annealing microstructure, microhardness, scratch behavior carried out. Further, resistance toughening mechanisms, namely, crack...
This work focuses on the synthesis and characterization of polymeric smart self-healing coatings. A comparison structural, thermal, properties two different coatings comprising distinct agents (tung oil linalyl acetate) is studied to elucidate role in corrosion protection. Towards this direction, urea-formaldehyde microcapsules (UFMCs) loaded with tung (TMMCs) acetate (LMMCs) were synthesized using in-situ polymerization method. The both LMMCs TMMCs under identical experimental conditions...
In this study, we reveal the microbiologically influenced corrosion (MIC) behavior of new electroless NiP-TiNi nanocomposite coating in simulated seawater using electrochemical impedance spectroscopy (EIS) technique after different periods incubation time (7, 10, 14, 21, 28 days) a sulfate-reducing bacteria (SRB) medium. The biofilm formation and products were characterized scanning electron microscope (SEM) X-ray photoelectron (XPS). EIS results revealed carbon steel (CS)/NiP-TiNi...
A carbon nitride (C3N4) nanomaterial has superior mechanical, thermal, and tribological properties, which make them attractive for various applications, including corrosion-resistant coatings. In this research, newly synthesized C3N4 nanocapsules with different concentrations (0.5, 1.0, 2.0 wt %) of ZnO as a dopant were incorporated into the NiP coating using an electroless deposition technique. The nanocomposite coatings either ZnO-doped (NiP-C3N4/ZnO) or undoped (NiP-C3N4) heat-treated at...
Abstract To improve the toughness of Ni–P coatings, NiTi superelastic particles were introduced into matrix through electroless co-depositing and Ti annealing Ni–P–Ti coatings. The mechanical properties coatings determined bend testing bilayer specimens tensile standalone coating. effects content on Young’s modulus, toughness, fracture strength investigated. After annealing, improved considerably. formation phase after led to improvement composite coating transformation toughening, crack...
Graphitic carbon nitride (g-C 3 N 4 ) nanomaterials are utilized as unique reinforcement in various applications due to their superior mechanical, thermal and protective properties. Moreover, recently, it has become attractive be used corrosion resistant coatings industries. The use of ethanol or ethylene glycol a solvent the preparation C offer two different shapes, which nanofiber nanotubes, respectively. In this research, newly synthesized g-C (C /F) nanotubes /T), well modification with...