Review of forms of corrosion and mitigation techniques: A visual guide DOI Creative Commons
Christopher Ikechukwu Ekeocha,

Bede Ikenna Onyeachu,

Ini-Ibehe Nabuk Etim

et al.

African Scientific Reports, Journal Year: 2023, Volume and Issue: unknown, P. 117 - 117

Published: Oct. 24, 2023

Over the years, issues relating to corrosion have been a serious challenge confronting effective scientific and engineering applications of metallic materials in industry. Annual loss due has quite alarming as it runs into trillions dollars. In this review, forms corrosion, factors affecting each form, mechanism formation, different aggressive environments that propagate identified. Mitigation techniques against threat were all discussed, especially those involving use eco-friendly, cheap, available, non-toxic materials. It was observed principle, process, conditions governing form must be well understood before can effectively mitigated. This done either by proper material selection design, environmental measures, modification corrosive media, inhibitors, or sacrificial protective coatings. However, adequate knowledge environment nature metal deployed such an is essential ensuring material's protection, safety, durability. For efficient prevention control, these mitigation implored exclusively collectively depending on setting which will used.

Language: Английский

Review on anti-corrosion properties of expired antihypertensive drugs as benign corrosion inhibitors for metallic materials in various environments DOI Creative Commons
Chigoziri N. Njoku,

Blessing N. Enendu,

Somtochukwu J. Okechukwu

et al.

Results in Engineering, Journal Year: 2023, Volume and Issue: 18, P. 101183 - 101183

Published: May 19, 2023

Discovering new classes of organic corrosion inhibitors, such as expired drugs, can provide cheaper, low-toxic, and highly efficient alternatives to the toxic counterparts that serve an recycling or disposal strategy. Antihypertensive drugs constitute one cheapest globally, have been reported effective inhibitors for a variety metallic materials in various environments. The inhibition mechanism these generally, involves adsorption on surfaces formation protective film retards attack substrates by corrosive entities media. drug molecular structure usually contains π-bonds, phenyl rings, polar functional groups (such –NH2, –OH, –CN, −Cl) which influence electron density within inhibitor framework also facilitate metal surface. Generally, most antihypertensive act mixed-type obey Langmuir isotherm revealing physisorption mechanisms except telmisartan, losartan potassium, atenolol when used nitric acid. efficiency is generally above 90% with spironolactone having highest 98.1% at 30 °C.

Language: Английский

Citations

41
A review of the electrochemical and galvanic corrosion behavior of important intermetallic compounds in the context of aluminum alloys DOI Creative Commons
Alexander I. Ikeuba, Chigoziri N. Njoku,

Okpo O. Ekerenam

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(43), P. 31921 - 31953

Published: Jan. 1, 2024

Aluminum alloys are widely sought for different applications due to their high strength-to-weight ratio. Most often this increased strength of the alloy is achieved by specific alloying elements and heat treatment processes which give rise second phases intermetallic particles (IMPs) also known as compounds (IMCs). These play a dominant role in corrosion susceptibility aluminum alloys. This review provides systematic survey electrochemical, galvanic behavior IMPs context A discussion electrochemical/galvanic selected/important that commonly found such Q-phase (Al

Language: Английский

Citations

13
A review of the application of ionic liquids as eco-friendly corrosion inhibitors for steel, aluminum, copper and magnesium alloys DOI Creative Commons
Alexander I. Ikeuba,

Nelson Essiet,

Obinna C. Echem

et al.

Journal of Ionic Liquids, Journal Year: 2024, Volume and Issue: 4(1), P. 100098 - 100098

Published: May 23, 2024

This review examines the corrosion inhibition performance of ionic liquids used as inhibitors for aluminum, copper, magnesium, steel, and their alloys in various aqueous media. The predominant classes employed are imidazolium, triazolium, thiazolium, phosphonium, pyridium, ammonium, pyrrolidinium, pyridinium-based liquids. pieces literature revealed that studies were carried out acid, base, salt media an array efficiencies was obtained. Herein, possible influence experimental techniques, liquid concentration, structure, molecular weight on efficiency tabulated discussed.

Language: Английский

Citations

10
Developments in anticorrosive organic coatings modulated by nano/microcontainers with porous matrices DOI Creative Commons
Inime Ime Udoh,

Okpo O. Ekerenam,

Enobong Felix Daniel

et al.

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 330, P. 103209 - 103209

Published: June 5, 2024

The durability and functionality of many metallic structures are seriously threatened by corrosion, which makes the development anticorrosive coatings imperative. This state-of-the-art survey explores recent developments in field organic modulated innovations involving nano/microcontainers with porous matrices. integration these cutting-edge delivery systems seeks to improve protective properties enabling controlled release, extended durability, targeted application corrosion inhibitors, can be co-constructed achieve defect filling polymeric materials. major highlight this review is an in-depth analysis functionalities provided active protection self-healing coatings, including their performance evaluation. In one case, after 20 days immersion 0.1 M NaCl, a scratched coating containing mesoporous silica nanoparticles loaded inhibitor benzotriazole shelled polydopamine (MSNs-BTA@PDA) exhibited restoration indicated sustained resistance rise over period monitored impedance values at 0.01 Hz frequency, rising from 8.3 × 10

Language: Английский

Citations

10
Revisiting the Advances on Specific Industrial Applications of Ionic Liquids for a Sustainable Green Future – A Review DOI
Alexander I. Ikeuba, Brian E. Usibe, Christopher U. Sonde

et al.

Chemistry Africa, Journal Year: 2024, Volume and Issue: 7(7), P. 3531 - 3548

Published: April 22, 2024

Language: Английский

Citations

9
Navigating the blue economy: a comprehensive review of marine pollution and sustainable approaches DOI
Ini-Ibehe Nabuk Etim,

Okpo O. Ekerenam,

Alexander I. Ikeuba

et al.

Journal of Oceanology and Limnology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

1
Electrochemical evaluation of the anti-corrosion potential of selected amino acids on magnesium in aqueous sodium chloride solutions DOI
Alexander I. Ikeuba, Christopher U. Sonde,

Ifeatu E. Chukwudubem

et al.

Anti-Corrosion Methods and Materials, Journal Year: 2023, Volume and Issue: 70(5), P. 252 - 258

Published: June 14, 2023

Purpose In line with current research efforts to develop eco-friendly strategies for corrosion mitigation, the purpose of this study is appraise anti-corrosion potential selected amino acids on magnesium in sodium chloride solutions. Design/methodology/approach The inhibition aqueous solutions presence benign, and readily available (alanine, arginine, histidine, lysine, proline) were evaluated using electrochemical methods. Findings Amino suppressed rate order efficiency (%IE) was as follows: alanine < arginine histidine lysine proline. open circuit shift respect blank less than 0.085 V SCE , indicating that are mixed-type inhibitors. addition, %IE inversely proportional molecular weight. results obtained indicate can serve sustainable inhibitors best attributed proline an 85.1%. Originality/value New information application green provided herein.

Language: Английский

Citations

22
A review of the extraction and application of eco-friendly biomass for corrosion protection of metals DOI Creative Commons
Chigoziri N. Njoku, Alexander I. Ikeuba,

Cyril C. Anorondu

et al.

Results in Chemistry, Journal Year: 2023, Volume and Issue: 7, P. 101286 - 101286

Published: Dec. 29, 2023

This review focuses on diverse biomass-based inhibitors employed to hinder corrosion in different aggressive environments, along with several methods of the biomass extraction. The prevalent used industries are toxic can inflict harm ecosystem and escalate health risks living organisms. paper summarizes obtaining extracts from ecofriendly which includes conventional unconventional extraction application protection metals. subject green is still up for debate despite extensive experimental work published studies. These have demonstrated significant inhibition efficiency various media, including acidic, alkaline, chloride-containing solutions. Their effectiveness be attributed presence active functional groups, such as nitrogen, sulfur, oxygen heterocyclic compounds, adsorb onto metal surface form protective layers.

Language: Английский

Citations

20
Recent design approaches, adhesion mechanisms, and applications of antibacterial surfaces DOI Creative Commons
Paul C. Uzoma, Ini-Ibehe Nabuk Etim, Bright O. Okonkwo

et al.

Chemical Engineering Journal Advances, Journal Year: 2023, Volume and Issue: 16, P. 100563 - 100563

Published: Sept. 26, 2023

Adhesion of bacteria on surfaces and the resultant biofilm formation is a great risk to human health care services, food packaging storage, marine industry. This has necessitated need for scientific community industries continually develop ways fabricating that can prevent bacterial adhesion, kill adhered bacteria, prevent/disrupt formation. Therefore, this review focused providing an up-to-date discussion recent strategies adopted by researchers in design antibacterial surfaces. It highlighted different surface characterization techniques, discussed mechanism adhesion formation, reviewed method their industrial applications, emphasized advantages drawbacks these proposed outlooks future designs.

Language: Английский

Citations

19
Response surface methodology and experimental evaluation of the inhibitory properties of corn leaf extract for aluminum corrosion in acid media DOI

Justin C Emereole,

Chigoziri N. Njoku, Alexander I. Ikeuba

et al.

Anti-Corrosion Methods and Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 4, 2024

Purpose This study aims to develop eco-friendly corrosion inhibitors for aluminum in acidic media by evaluating the inhibition properties of corn leaf extract (CLE) using response surface methodology (RSM) and experiments. Design/methodology/approach The RSM was combined with experiments evaluate CLE on acid media. Findings effectiveness increased increasing inhibitor concentration time but decreased temperature. mechanism revealed process is spontaneous exothermic physical adsorption. Thermodynamic parameters an activation energy between 32.1 24.7 kJ/mol, adsorption −14.53 −65.07 Gibbs free −10.12 kJ/mol which indicated exothermically spontaneously physisorbed. A model generated estimate effect (inhibitor concentration, reaction temperature) RSM. Optimization factors also carried out percentage efficiency obtained experimentally (85.61%) closely comparable 84.89% theoretical technique (RSM). SEM observations inhibited uninhibited Al samples demonstrated that effective Originality/value Results herein provide novel information possible application CLEs as inhibitors.

Language: Английский

Citations

8