A5089777362- Corrosion Behavior and Inhibition
- Hydrogen embrittlement and corrosion behaviors in metals
- Adsorption and biosorption for pollutant removal
- Electrochemical Analysis and Applications
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Concrete Corrosion and Durability
- Advanced oxidation water treatment
- Environmental remediation with nanomaterials
- Pigment Synthesis and Properties
- Nanomaterials for catalytic reactions
- Dye analysis and toxicity
- Clay minerals and soil interactions
- Fuel Cells and Related Materials
- TiO2 Photocatalysis and Solar Cells
- Transition Metal Oxide Nanomaterials
- Anodic Oxide Films and Nanostructures
- Marine Biology and Environmental Chemistry
- Carbon Dioxide Capture Technologies
- Gas Sensing Nanomaterials and Sensors
- Catalysis and Oxidation Reactions
- Water Quality Monitoring and Analysis
- Catalytic Processes in Materials Science
- Microstructure and Mechanical Properties of Steels
- Pharmaceutical and Antibiotic Environmental Impacts
Federal University of Technology Owerri
2016-2025
Federal University of Technology
2016-2023
Federal College of Education, Kano
2021
Northeastern University
2019
Chinese Academy of Sciences
2007-2010
Nanometer-thick passive films on metals usually impart remarkable resistance to general corrosion but are susceptible localized attack in certain aggressive media, leading material failure with pronounced adverse economic and safety consequences. Over the past decades, several classic theories have been proposed accepted, based hypotheses theoretical models, oftentimes, not sufficiently nor directly corroborated by experimental evidence. Here we show results structure of film formed a...
Nanometer-thick passive films, which impart superior corrosion resistance to metals, are degraded in long-term service; they also susceptible chloride-induced localized attack. Here we show, by engineering crystallographic configurations upon metal matrices adjacent their obtain great enhancement of FeCr15Ni15 single crystal sulphuric acid, with activation time up two orders magnitude longer than that the non-engineered counterparts. Meanwhile, crystallography decreases current density and...
The inhibiting action of the calyx extract Hibiscus sabdariffa on mild steel corrosion in 2 M HCl and 1 H SO 4 solutions was assessed using a gasometric technique.The results demonstrate that suppressed reaction both acid media inhibition efficiency increased with concentration slightly higher values obtained .Synergistic effects presence halide additives.Adsorption characteristics were approximated by Langmuir isotherm.The mechanisms, estimated from temperature dependence as well kinetic...
The corrosion inhibition of mild steel in 1M H 2 SO 4 by polyvinyl pyrrolidone (PVP) and the synergistic effect iodide ions were investigated using weight loss hydrogen evolution methods temperature range 30 -60 o C. rates decreased with increasing concentration PVP, while efficiency (%I) increased.The PVP rise temperature, suggesting a physical adsorption mechanism, which was found to follow Freundlich Temkin isotherms.The mechanism further collaborated values kinetics/thermodynamic...
The corrosion behavior of 2A02 Al alloy under 4 mg/cm² NaCl deposition at different temperatures (from 30 to 80 °C) has been studied. This was researched using mass-gain, scanning electron microscopy-SEM, laser confocal microscopy-LSCM, X-ray photoelectron spectroscopy-XPS and other techniques. results showed revealed that the maximal 60 °C after 200 h exposure. increase temperature not only affected solubility oxygen gas in thin film, but also promoted transport ions (such as Cl-),...
The adsorption mechanism of ciprofloxacin (CIP) and its ionic form were investigated using density functional theory (DFT) molecular dynamics (MD), with the goal forecasting their behavior in terms gap energy, global reactivity descriptors, Fukui functions, energies, state on surface zeolite 4A (001). Quantum chemical parameters related to process calculated, as well overall reactivity. According DFT calculations, zwetterionic CIP± are most stable reactive have a greater power electron...
The extract from the seeds of Aframomum Melegueta (AM) was investigated as corrosion inhibitor for mild steel in aerated 1 M HCl and 0.5 H2SO4 solutions using gravimetric electrochemical techniques. AM found to inhibit both cathodic anodic partial reactions process, via adsorption organic matter on metal/solution interface, described by Langmuir well Flory-Huggins isotherms. Corrosion rates all systems studied increased with rise temperature. Increasing temperature system enhanced inhibition...
The inhibition of corrosion mild steel in 1 molar hydrochloric acid solution (1 M HCl) by Mucuna pruriens seed extract (MPSE) was investigated weight-loss and electrochemical techniques.A significant decrease the rate observed presence additive efficiency found to depend on concentration MPSE.The potentiodynamic polarization data indicated that this mixed type, but anodic effect more pronounced.Nyquist plots showed increasing MPSE concentration, charge transfer resistance increased double...
The efficiency of NH2-UiO-66 to eliminate the anionic dyes indigo carmine (IC) and orange 2 (O2) cationic dye rhodamine B (RhB) was evaluated. obtained by solvothermal...
Abstract Compression ignition engines/diesel engines release greenhouse gases like particulate matter (PM), carbon monoxide (CO), nitrogen oxides (NO x ), and, unburnt hydrocarbons which pose environmental and human health risks. Water‐in‐diesel emulsion (WiDE) has emerged as a cost‐effective alternative fuel for reducing the emission of these in diesel engines. This paper reviews effectiveness using to reduce harmful emissions well challenges associated with WiDE, include stability...