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Hernández-Montes V, Buitrago-Sierra R, Echeverry-Rendón M, Santa-Marín JF. Ceria-based coatings on magnesium alloys for biomedical applications: a literature review. RSC Adv 2023; 13:1422-1433. [PMID: 36712919 PMCID: PMC9829028 DOI: 10.1039/d2ra06312c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/05/2022] [Indexed: 01/11/2023] Open
Abstract
Magnesium alloys are being studied for use in temporary orthopedic implants because of their mechanical properties, which are similar to those of human bone, and their good biocompatibility. However, their application is limited due to their rapid degradation, and early loss of their mechanical properties, decreasing the stability of the implant and its proper synchronization with tissue regeneration. In this regard, various surface coatings have been used to improve their biological, physico-chemical and biodegradation properties. Currently, one of the most explored strategies is using smart coatings because of their self-healing properties that can slow down the corrosion process of Mg and its alloys. Ceria-based materials show promise as coatings for these alloys. Their unique redox capacity not only provides Mg alloys with good self-healing properties but also interesting biological properties, which are described in this paper. Despite this, some problems and challenges related to the biocompatibility and application of these materials in coatings remain unsolved. In this article, a critical review is presented summarizing the most representative literature on ceria-based coatings on Mg alloys for their potential use as biomaterials. The results show that ceria is a versatile material that may be used in industrial and biomedical applications.
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Affiliation(s)
- V Hernández-Montes
- Universidad Nacional de Colombia. Sede Medellín. Facultad de Minas. Medellín, Colombia, Grupo de Tribología y Superficies Medellín Colombia
| | - R Buitrago-Sierra
- Instituto Tecnológico Metropolitano (ITM). Facultad de Ingenierías, Grupo de Materiales Avanzados y Energía (MATyER) Medellín Colombia
| | | | - J F Santa-Marín
- Universidad Nacional de Colombia. Sede Medellín. Facultad de Minas. Medellín, Colombia, Grupo de Tribología y Superficies Medellín Colombia
- Instituto Tecnológico Metropolitano (ITM). Facultad de Ingenierías, Grupo de Materiales Avanzados y Energía (MATyER) Medellín Colombia
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Trentin A, Pakseresht A, Duran A, Castro Y, Galusek D. Electrochemical Characterization of Polymeric Coatings for Corrosion Protection: A Review of Advances and Perspectives. Polymers (Basel) 2022; 14:2306. [PMID: 35745882 PMCID: PMC9228341 DOI: 10.3390/polym14122306] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 02/04/2023] Open
Abstract
The development of anti-corrosion polymeric coatings has grown exponentially in the fields of material science, chemistry, engineering, and nanotechnology during the last century and has prompted the evolution of efficient characterization techniques. Nowadays, polymeric coatings represent a well-established protection system that provides a barrier between a metallic substrate and the environment. However, the increase in complexity and functionality of these coatings requires high-precision techniques capable of predicting failures and providing smart protection. This review summarizes the state of the art for the main electrochemical techniques, emphasizing devices that track the anti-corrosion properties of polymeric coatings from the macroscale to the nanoscale. An overview of the advances in accelerated corrosion testing and the electrochemical characterization of coatings is explored, including insights into their advantages and limitations. In addition, the challenges and potential applications of the theoretical approaches are summarized based on current knowledge. Finally, this work provides the reader with the trends and challenges of designing future technologies and models capable of tracking corrosion and predicting failures.
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Affiliation(s)
- Andressa Trentin
- FunGlass, A. Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; (A.P.); (D.G.)
| | - Amirhossein Pakseresht
- FunGlass, A. Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; (A.P.); (D.G.)
| | - Alicia Duran
- Instituto de Cerámica y Vidrio (CSIC), Campus de Cantoblanco, 28049 Madrid, Spain; (A.D.); (Y.C.)
| | - Yolanda Castro
- Instituto de Cerámica y Vidrio (CSIC), Campus de Cantoblanco, 28049 Madrid, Spain; (A.D.); (Y.C.)
| | - Dušan Galusek
- FunGlass, A. Dubček University of Trenčín, Študentská 2, 911 50 Trenčín, Slovakia; (A.P.); (D.G.)
- Joint Glass Centre of the IIC SAS, TnUAD and FChFT STU, 911 50 Trenčín, Slovakia
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Udensi S, Ekpe O, Nnanna L. Corrosion inhibition performance of low cost and eco-friendly Treculia africana leaves extract on aluminium alloy AA7075-T7351 in 2.86% NaCl solutions. SCIENTIFIC AFRICAN 2021. [DOI: 10.1016/j.sciaf.2021.e00791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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B P, U V. In Vitro bioactivity, biocompatibility and corrosion resistance of multi-ionic (Ce/Si) co-doped hydroxyapatite porous coating on Ti-6Al-4 V for bone regeneration applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111620. [PMID: 33321662 DOI: 10.1016/j.msec.2020.111620] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/26/2020] [Accepted: 10/06/2020] [Indexed: 12/27/2022]
Abstract
Dual-doped hydroxyapatite (Ce4+/Si4+ doped HAP) coating with admirable bacterial resistance and enriched bioactivity was fabricated via spin-coating technique. In this study, Ce/Si co-doped hydroxyapatite was coated on Ti-6Al-4 V substrates as a triple layer with extreme centrifugal force (2000 RPM, 3000 RPM and 4000 RPM) to improve the biological performance of the coating in terms of enhanced bone apposition. Further, the coated substrate was characterized by XRD, FTIR and SEM-EDS techniques. The contact angle of the coating was measured through the sessile drop method and in vitro biomineralization was carried out in SBF solution to predict the apatite formation on the surface of the coated implant. Pathogen restriction behaviour of the coating was studied using gram-negative and gram-positive bacteria such as Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Pseudomonas aeruginosa respectively. Among these, gram-negative bacteria, Escherichia coli revealed greater inhibition than other bacteria. In vitro cell viability assay using MG-63 osteoblast cell was performed for the optimised coating acquired at 4000 RPM and the result showed excellent biocompatibility towards the cell line. Corrosion resistance behaviour of the coating using Polarization and EIS study exhibited excellent corrosion resistance. Therefore, based on the in vitro studies, the designed multifunctional coating can act as a potential biomaterial in the field of biomedical engineering.
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Affiliation(s)
- Priyadarshini B
- Department of Chemistry, School of Advanced Sciences, VIT, Vellore 632 014, Tamil Nadu, India
| | - Vijayalakshmi U
- Department of Chemistry, School of Advanced Sciences, VIT, Vellore 632 014, Tamil Nadu, India.
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Abd El-Lateef HM, Alnajjar AO, Khalaf MM. Advanced self-healing coatings based on ZnO, TiO2, and ZnO-TiO2/polyvinyl chloride nanocomposite systems for corrosion protection of carbon steel in acidic solutions containing chloride. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.11.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Synthesis, Characterization and Corrosion Inhibition Performance of Glycine-Functionalized Graphene/Fe3O4 Nanocomposite (Gr/Fe@Gly NC) for Mild Steel Corrosion in 1 M HCl. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-05015-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Hydroxyapatite and β-TCP modified PMMA-TiO 2 and PMMA-ZrO 2 coatings for bioactive corrosion protection of Ti6Al4V implants. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111149. [PMID: 32806280 DOI: 10.1016/j.msec.2020.111149] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/02/2020] [Accepted: 05/31/2020] [Indexed: 12/23/2022]
Abstract
Organic-inorganic hybrid coatings deposited on different types of metallic alloys have shown outstanding anticorrosive performance. The incorporation of osteoconductive additives such as hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP) into organic-inorganic hybrid coatings is promising to improve the osseointegration and corrosion resistance of Ti6Al4V alloys, which are the most widely used metallic orthopedic and dental implant materials today. Therefore, this study evaluated the capability of poly(methyl methacrylate) (PMMA)-TiO2 and PMMA-ZrO2 hybrid coatings modified with HA and β-TCP to act as bioactive and corrosion protection coatings for Ti6Al4V alloys. In terms of cell growth and mineralization, osteoblast viability, Ca+2 deposition and alkaline phosphatase assays revealed a significant improvement for the HA and β-TCP modified coatings, compared to the bare alloy. This can be explained by an increase in nanoscale roughness and associated higher surface free energy, which lead to enhanced protein adsorption to promote osteoblast attachment and functions on the coatings. The effect of HA and β-TCP additives on the anticorrosive efficiency was studied by electrochemical impedance spectroscopy (EIS) in a simulated body fluid (SBF) solution. The coatings presented a low-frequency impedance modulus of up to 430 GΩ cm2, 5 decades higher than the bare Ti6Al4V alloy. These findings provide clear evidence of the beneficial role of HA and β-TCP modified hybrid coatings, improving both the biocompatibility and corrosion resistance of the Ti6Al4V alloy.
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Rodič P, Korošec RC, Kapun B, Mertelj A, Milošev I. Acrylate-Based Hybrid Sol-Gel Coating for Corrosion Protection of AA7075-T6 in Aircraft Applications: The Effect of Copolymerization Time. Polymers (Basel) 2020; 12:E948. [PMID: 32325797 PMCID: PMC7240561 DOI: 10.3390/polym12040948] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 11/28/2022] Open
Abstract
Pre-hydrolysed/condensed tetraethyl orthosilicate (TEOS) was added to a solution of methyl methacrylate (MMA) and 3-methacryloxypropyltrimethoxysilane (MAPTMS), and then copolymerised for various times to study the influence of the latter on the structure of hybrid sol-gel coatings as corrosion protection of aluminium alloy 7075-T6. The reactions taking place during preparation were characterised using real-time Fourier transform infrared spectroscopy, dynamic light scattering and gel permeation chromatography. The solution characteristics were evaluated, using viscosimetry, followed by measurements of thermal stability determined by thermogravimetric analysis. The optimal temperature for the condensation reaction was determined with the help of high-pressure differential scanning calorimetry. Once deposited on 7075-T6 substrates, the coatings were evaluated using a field emission scanning electron microscope coupled to an energy dispersive spectrometer to determine surface morphology, topography, composition and coating thickness. Corrosion properties were tested in dilute Harrison's solution (3.5 g/L (NH4)2SO4 and 0.5 g/L NaCl) using electrochemical impedance spectroscopy. The copolymerization of MMA and MAPTMS over 4 h was optimal for obtaining 1.4 µm thick coating with superior barrier protection against corrosion attack (Z10 mHz 1 GΩ cm2) during three months of exposure to the corrosive medium.
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Affiliation(s)
- Peter Rodič
- Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova c. 39, SI-1000 Ljubljana, Slovenia; (B.K.); (I.M.)
| | - Romana Cerc Korošec
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, SI-1000 Ljubljana, Slovenia;
| | - Barbara Kapun
- Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova c. 39, SI-1000 Ljubljana, Slovenia; (B.K.); (I.M.)
| | - Alenka Mertelj
- Department of Complex Matter, Jožef Stefan Institute, Jamova c. 39, SI-1000 Ljubljana, Slovenia;
| | - Ingrid Milošev
- Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova c. 39, SI-1000 Ljubljana, Slovenia; (B.K.); (I.M.)
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9
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The Effect of the Methyl and Ethyl Group of the Acrylate Precursor in Hybrid Silane Coatings Used for Corrosion Protection of Aluminium Alloy 7075-T6. COATINGS 2020. [DOI: 10.3390/coatings10020172] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study investigated polysiloxane hybrid sol-gel coatings synthesized from tetraethyl orthosilicate (TEOS), 3-(trimethoxysilyl)propyl methacrylate (MAPTMS) and two different precursors, i.e., methyl- or ethyl- methacrylate (MMA or EMA), as corrosion protection of aluminium alloy 7075-T6. The hypothesis was that the additional alkyl group might affect the chemical properties and, consequently, the corrosion properties. Synthesis of the sols proceeded in two steps, each involving either MMA or EMA in the same molar ratio. The resulting sols, siloxane-(poly(methyl methacrylate-co-MAPTMS)) or siloxane-(poly(ethyl methacrylate-co-MAPTMS)), were applied on aluminium alloy followed by characterization in terms of chemical structure and composition, topography, wettability, adhesion and corrosion resistance in 0.1 M sodium chloride solution. The chemical properties of sols, monoliths and coatings were investigated using Fourier transform infrared spectrometry, solid state nuclear magnetic resonance spectrometry, X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry. Coatings were similar in terms of surface topography, while the wettability of the coating with EMA showed 6° greater water contact angle compared to the coating with MMA. Both coatings were shown, by electrochemical impedance spectroscopy in 0.1 M NaCl solution, to act as barriers to protect the underlying substrate in which coating with EMA exhibits better protection properties after 2 months of immersion. Adhesion tests confirmed the highest grade of adhesion to the substrate for both coatings. Testing in a salt-spray chamber demonstrated excellent corrosion protection, where coatings remaining intact after more than 600 h of exposure.
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Trentin A, Harb SV, Uvida MC, Pulcinelli SH, Santilli CV, Marcoen K, Pletincx S, Terryn H, Hauffman T, Hammer P. Dual Role of Lithium on the Structure and Self-Healing Ability of PMMA-Silica Coatings on AA7075 Alloy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40629-40641. [PMID: 31589404 DOI: 10.1016/j.corsci.2021.109581] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this work, structural and active corrosion inhibition effects induced by lithium ion addition in organic-inorganic coatings based on poly(methyl methacrylate) (PMMA)-silica sol-gel coatings have been investigated. The addition of increasing amounts of lithium carbonate (0, 500, 1000, and 2000 ppm), yielded homogeneous hybrid coatings with increased connectivity of nanometric silica cross-link nodes, covalently linked to the PMMA matrix, and improved adhesion to the aluminum substrate (AA7075). Electrochemical impedance spectroscopy (EIS), performed in 3.5% NaCl aqueous solution, showed that the improved structural properties of coatings with higher lithium loadings result in an increased corrosion resistance, with an impedance modulus up to 50 GΩ cm2, and revealed that the lithium induced self-healing ability significantly improves their durability. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) suggest that the regeneration process occurs by means of lithium ions leaching from the adjacent coating toward the corrosion spot, which is restored by a protective layer of precipitated Li rich aluminum hydroxide species. An analogue mechanism has been proposed for artificially scratched coatings presenting an increase of the impedance modulus after salt spray test compared to the lithium free coating. These results evidence the active role of lithium ions in improving the passive barrier of the PMMA-silica coating and in providing through the self-restoring ability a significantly extended service life of AA7075 alloy exposed to saline environment.
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Affiliation(s)
- Andressa Trentin
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Samarah V Harb
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Mayara C Uvida
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Sandra H Pulcinelli
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Celso V Santilli
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Kristof Marcoen
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Sven Pletincx
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Herman Terryn
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Tom Hauffman
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Peter Hammer
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
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11
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Trentin A, Harb SV, Uvida MC, Pulcinelli SH, Santilli CV, Marcoen K, Pletincx S, Terryn H, Hauffman T, Hammer P. Dual Role of Lithium on the Structure and Self-Healing Ability of PMMA-Silica Coatings on AA7075 Alloy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40629-40641. [PMID: 31589404 DOI: 10.1021/acsami.9b13839] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this work, structural and active corrosion inhibition effects induced by lithium ion addition in organic-inorganic coatings based on poly(methyl methacrylate) (PMMA)-silica sol-gel coatings have been investigated. The addition of increasing amounts of lithium carbonate (0, 500, 1000, and 2000 ppm), yielded homogeneous hybrid coatings with increased connectivity of nanometric silica cross-link nodes, covalently linked to the PMMA matrix, and improved adhesion to the aluminum substrate (AA7075). Electrochemical impedance spectroscopy (EIS), performed in 3.5% NaCl aqueous solution, showed that the improved structural properties of coatings with higher lithium loadings result in an increased corrosion resistance, with an impedance modulus up to 50 GΩ cm2, and revealed that the lithium induced self-healing ability significantly improves their durability. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) suggest that the regeneration process occurs by means of lithium ions leaching from the adjacent coating toward the corrosion spot, which is restored by a protective layer of precipitated Li rich aluminum hydroxide species. An analogue mechanism has been proposed for artificially scratched coatings presenting an increase of the impedance modulus after salt spray test compared to the lithium free coating. These results evidence the active role of lithium ions in improving the passive barrier of the PMMA-silica coating and in providing through the self-restoring ability a significantly extended service life of AA7075 alloy exposed to saline environment.
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Affiliation(s)
- Andressa Trentin
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Samarah V Harb
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Mayara C Uvida
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Sandra H Pulcinelli
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Celso V Santilli
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
| | - Kristof Marcoen
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Sven Pletincx
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Herman Terryn
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Tom Hauffman
- Vrije Universiteit Brussel , Department of Materials and Chemistry, Research Group of Electrochemical and Surface Engineering , Pleinlaan 2 , 1050 Brussels , Belgium
| | - Peter Hammer
- São Paulo State University (UNESP) , Institute of Chemistry , 14800-060 Araraquara , São Paulo , Brazil
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New, Amino Acid Based Zwitterionic Polymers as Promising Corrosion Inhibitors of Mild Steel in 1 M HCl. COATINGS 2019. [DOI: 10.3390/coatings9100675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The zwitterionic monomers, N,N’-diallylamino propanephosphonate and amino acid residual N,N’-diallyl-l-methionine hydrochloride were synthesized, with excellent yields. These monomers were utilized in the preparation of zwitterionic homo and co-cyclopolymers 5–7 in aqueous solution using 2,2′-azobis (2-methylpropionamidine) dihydrochloride as an initiator. The polymers were characterized by FT-IR, NMR, and TGA. The performance of these synthesized polymers on mild steel in acidic solution was investigated by gravimetric method, Tafel extrapolation, linear polarization resistance, and electrochemical impedance spectroscopy. At 313 K, the maximum inhibition efficiencies of corrosion inhibitors 5–7 at 4.50 × 10−4 mol L−1 were found to be 85.2%, 83.3%, and 99.5%, respectively. The inhibition efficiencies obtained from gravimetric weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy measurements were in good agreement. Different adsorption isotherms were also explored to find the best fit, and found to obey Langmuir adsorption isotherm. The thermodynamic parameters, such as activation energy (Ea), standard enthalpy of activation (ΔH*), standard entropy of activation (ΔS*), adsorption–desorption equilibrium constant (Kads), and standard free energy of adsorption (ΔGoads), were determined. Electrochemical data indicated that the zwitterionic copolymer 7 acts as a mixed type inhibitor under the influence of anodic control. The surface morphology of mild steel corrosion was evaluated without and with corrosion inhibitors by AFM, SEM-EDX, and XPS, which confirmed the adsorption of inhibitor molecules on the metal surface.
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Jafar Mazumder MA. Synthesis, characterization and electrochemical analysis of cysteine modified polymers for corrosion inhibition of mild steel in aqueous 1 M HCl. RSC Adv 2019; 9:4277-4294. [PMID: 35520193 PMCID: PMC9060476 DOI: 10.1039/c8ra09833f] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/19/2019] [Accepted: 01/18/2019] [Indexed: 12/02/2022] Open
Abstract
Butler's cyclopolymerization protocol was used to synthesize homo and copolymers of cysteine residues and diallyldimethylammonium chloride (DADMAC) using water as a solvent and excellent yields were obtained. The structural composition of the polymers was determined using nuclear magnetic resonance (NMR) and Fourier-transform infrared (FT-IR) spectroscopies. The thermal stability of the synthesized polymers was determined using thermogravimetric analysis (TGA). The corrosion efficiencies and adsorption characteristics of these polymers on mild steel were evaluated using gravimetric weight loss and potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS). The copolymers of cysteine residues and DADMAC exhibited excellent inhibition efficiencies in arresting mild steel corrosion in 1 M hydrochloric acid (HCl) at 60 °C. The best fitted Langmuir, Temkin and Freundlich adsorption isotherms suggested that the adsorption process occurs through chemisorption and physisorption. The surface morphology of mild steel in the presence or absence of polymers was determined using atomic force microscopy (AFM), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), and X-ray photoelectron spectroscopy (XPS). This systematic study might provide a way to design new inhibitor compounds that could be beneficial in the field of biomedical science as well as for anti-corrosion applications. Mild steel framework embedded in corrosion inhibiting structural motifs.![]()
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Jafar Mazumder MA, Goni LKMO, Ali SA, Nazal MK. Inhibition of mild steel corrosion in hydrochloric acid medium by polymeric inhibitors containing residues of essential amino acid methionine. IRANIAN POLYMER JOURNAL 2018. [DOI: 10.1007/s13726-018-0669-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Torrico RF, Harb SV, Trentin A, Uvida MC, Pulcinelli SH, Santilli CV, Hammer P. Structure and properties of epoxy-siloxane-silica nanocomposite coatings for corrosion protection. J Colloid Interface Sci 2018; 513:617-628. [DOI: 10.1016/j.jcis.2017.11.069] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 11/16/2022]
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16
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Xu X, Singh A, Sun Z, Ansari KR, Lin Y. Theoretical, thermodynamic and electrochemical analysis of biotin drug as an impending corrosion inhibitor for mild steel in 15% hydrochloric acid. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170933. [PMID: 29308235 PMCID: PMC5750002 DOI: 10.1098/rsos.170933] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/31/2017] [Indexed: 05/28/2023]
Abstract
The corrosion mitigation efficiency of biotin drug for mild steel in 15% hydrochloric acid was thoroughly investigated by weight loss and electrochemical methods. The surface morphology was studied by the contact angle, scanning electrochemical microscopy, atomic force microscopy and scanning electron microscopy methods. Quantum chemical calculation and Fukui analysis were done to correlate the experimental and theoretical data. The influence of the concentration of inhibitor, immersion time, temperature, activation energy, enthalpy and entropy has been reported. The mitigation efficiency of biotin obtained by all methods was in good correlation with each other. Polarization studies revealed that biotin acted as a mixed inhibitor. The adsorption of biotin was found to obey the Langmuir adsorption isotherm. Surface studies showed the hydrophobic nature of the steel with inhibitor and vindicated the formation of a film on the metal surface that reduced the corrosion rate.
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Affiliation(s)
- Xihua Xu
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Ambrish Singh
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Zhipeng Sun
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - K. R. Ansari
- Department of Applied Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India
| | - Yuanhua Lin
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
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Dwivedi D, Lepkova K, Becker T. Emerging surface characterization techniques for carbon steel corrosion: a critical brief review. Proc Math Phys Eng Sci 2017; 473:20160852. [PMID: 28413351 PMCID: PMC5378249 DOI: 10.1098/rspa.2016.0852] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/08/2017] [Indexed: 11/12/2022] Open
Abstract
Carbon steel is a preferred construction material in many industrial and domestic applications, including oil and gas pipelines, where corrosion mitigation using film-forming corrosion inhibitor formulations is a widely accepted method. This review identifies surface analytical techniques that are considered suitable for analysis of thin films at metallic substrates, but are yet to be applied to analysis of carbon steel surfaces in corrosive media or treated with corrosion inhibitors. The reviewed methods include time of flight-secondary ion mass spectrometry, X-ray absorption spectroscopy methods, particle-induced X-ray emission, Rutherford backscatter spectroscopy, Auger electron spectroscopy, electron probe microanalysis, near-edge X-ray absorption fine structure spectroscopy, X-ray photoemission electron microscopy, low-energy electron diffraction, small-angle neutron scattering and neutron reflectometry, and conversion electron Moessbauer spectrometry. Advantages and limitations of the analytical methods in thin-film surface investigations are discussed. Technical parameters of nominated analytical methods are provided to assist in the selection of suitable methods for analysis of metallic substrates deposited with surface films. The challenges associated with the applications of the emerging analytical methods in corrosion science are also addressed.
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Affiliation(s)
- D. Dwivedi
- Department of Chemical Engineering, Curtin Corrosion Engineering Industry Centre, Western Australia, Australia
| | - K. Lepkova
- Department of Chemical Engineering, Curtin Corrosion Engineering Industry Centre, Western Australia, Australia
| | - T. Becker
- Nanochemistry Research Institute, Department of Chemistry, Faculty of Science and Engineering, Curtin University, Western Australia, Australia
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