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Zhang Z, Wang J, Serdechnova M, Kasneryk V, Zhang Z, Blawert C, Wang H, Zheludkevich ML, Chen F, Zhang Y. An Inhibitor-Loaded LDH- and MOF-Based Bilayer Hybrid System for Active Corrosion Protection of Aluminum Alloys. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11944-11956. [PMID: 38404036 DOI: 10.1021/acsami.3c19432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
A novel inhibitor-loaded bilayer hybrid system based on the LDH inner layer and MOF outer layer is designed on an aluminum alloy 2A12 surface to improve corrosion performance. The hybrid film system covers the inherent cavities and intercrystalline defects of the LDH film using the affinity between the LDH and the MOF compounds. The results demonstrate that the LDH-inhI precursor film is entirely covered by new Zn-based MOF microrods. The LDH-inhI precursor film is partially dissolved and recrystallized in favor of MOF crystal growth to strengthen the binding adhesion between LDH and MOF films. The LDH-inhI/MOF-inhII bilayer film shows significantly enhanced corrosion resistance through the synergistic action of LDH and MOF nanocontainers doped with different corrosion inhibitors (vanadates, 2,5-furandicarboxylic acid, and benzotriazoles). Due to the multiple loadings of the MOF film and the sustained-release of the LDH film, this method provides an effective approach to developing new anticorrosion systems and enhancing both the barrier ability and active corrosion protection performance of LDH-based conversion treatments.
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Affiliation(s)
- Zhe Zhang
- College of New Materials and Chemical Engineering, Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Juping Wang
- College of New Materials and Chemical Engineering, Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
- Institute of Surface Science, Helmholtz-Zentrum Hereon, Geesthacht 21502, Germany
| | - Maria Serdechnova
- Institute of Surface Science, Helmholtz-Zentrum Hereon, Geesthacht 21502, Germany
| | - Valeryia Kasneryk
- Institute of Surface Science, Helmholtz-Zentrum Hereon, Geesthacht 21502, Germany
| | - Zheng Zhang
- College of New Materials and Chemical Engineering, Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Carsten Blawert
- Institute of Surface Science, Helmholtz-Zentrum Hereon, Geesthacht 21502, Germany
| | - Hao Wang
- College of New Materials and Chemical Engineering, Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Mikhail L Zheludkevich
- Institute of Surface Science, Helmholtz-Zentrum Hereon, Geesthacht 21502, Germany
- Faculty of Engineering, CAU Kiel University, Kiel 24143, Germany
| | - Fei Chen
- College of New Materials and Chemical Engineering, Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - You Zhang
- College of New Materials and Chemical Engineering, Beijing Key Lab of Special Elastomeric Composite Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China
- Institute of Surface Science, Helmholtz-Zentrum Hereon, Geesthacht 21502, Germany
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2
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Chafiq M, Al-Moubaraki AH, Chaouiki A, Ko YG. A Novel Coating System Based on Layered Double Hydroxide/HQS Hierarchical Structure for Reliable Protection of Mg Alloy: Electrochemical and Computational Perspectives. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1176. [PMID: 38473647 DOI: 10.3390/ma17051176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/26/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
Growing research activity on layered double hydroxide (LDH)-based materials for novel applications has been increasing; however, promoting LDH layer growth and examining its morphologies without resorting to extreme pressure conditions remains a challenge. In the present study, we enhance LDH growth and morphology examination without extreme pressure conditions. By synthesizing Mg-Al LDH directly on plasma electrolytic oxidation (PEO)-treated Mg alloy surfaces and pores at ambient pressure, the direct synthesis was achieved feasibly without autoclave requirements, employing a suitable chelating agent. Additionally, enhancing corrosion resistance involved incorporating electron donor-acceptor compounds into a protective layer, with 8-Hydroxyquinoline-5-sulfonic acid (HQS) that helps in augmenting Mg alloy corrosion resistance through the combination of LDH ion-exchange ability and the organic layer. DFT simulations were used to explain the mutual interactions in the LDH system and provide a theoretical knowledge of the interfacial process at the molecular level.
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Affiliation(s)
- Maryam Chafiq
- Materials Electrochemistry Laboratory, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Aisha H Al-Moubaraki
- Department of Chemistry, Faculty of Sciences-Alfaisaliah Campus, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Abdelkarim Chaouiki
- Materials Electrochemistry Laboratory, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Young Gun Ko
- Materials Electrochemistry Laboratory, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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3
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Aminifazl A, Karunarathne DJ, Golden TD. Synthesis of Silane Functionalized LDH-Modified Nanopowders to Improve Compatibility and Enhance Corrosion Protection for Epoxy Coatings. Molecules 2024; 29:819. [PMID: 38398571 PMCID: PMC10892364 DOI: 10.3390/molecules29040819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Novel modified Zn-Al LDH/epoxy coatings are synthesized and applied to steel substrates, providing active corrosion protection and improved barrier properties. This protective coating is made by combining Epon 828 as a polymer matrix with modified layered-double-hydroxy (LDH) nanoparticles acting as corrosion inhibitor containers. To synthesize the coatings, nitrate was intercalated into Zn-Al-LDH layers through an aqueous co-precipitation method to obtain Zn-Al LDH-NO3, and decavanadate replaced nitrate within the LDH layers through an anion exchange process to obtain Zn-Al LDH-(V10O28)6-. The intercalated LDH was functionalized by silanization with (3-aminopropyl)triethoxysilane (APTES) to increase the compatibility of the LDH inhibitor nanocontainers with epoxy resin and produce a protective coating. To protect the mild steel substrate, functionalized LDH nanopowders were dispersed into the epoxy resin, mixed with a polyamide hardener (Epikure 3571), and applied and cured to the metal surface. Surface morphology, structure, and chemical composition were determined for the modified LDH nanopowders using scanning electron microscopy, energy-dispersive X-ray analysis, X-ray diffraction, infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. Corrosion protection of the coating system was studied using long-term immersion testing and potentiodynamic polarization studies in a 3.5 wt.% NaCl solution.
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Affiliation(s)
| | | | - Teresa D. Golden
- Department of Chemistry, University of North Texas, 1155 Union Circle #305070, Denton, TX 76203, USA; (A.A.)
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4
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Ying L, Wang D, Nie C, Zhu T, Cao F, Liu R, Wang Z. Modification of Mg/Al-LDH by vanadate: effects on tribological properties and corrosion resistance. RSC Adv 2023; 13:14171-14180. [PMID: 37180023 PMCID: PMC10170302 DOI: 10.1039/d3ra01636f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
In this study, Mg/Al layered double hydroxide (LDH) composite coatings were prepared on the surface of anodized 1060 aluminum alloy by an in situ growth method, and then the vanadate anions were embedded in the interlayer corridor of LDH by an ion exchange process. The morphology, structure and composition of the composite coatings were investigated using scanning electron microscopy, energy dispersive spectroscopy, X-ray diffractometry and Fourier transform infrared spectroscopy. Ball-and-disk friction wear experiments were carried out to measure the coefficient of friction, the amount of wear, and the morphology of the worn surface. The corrosion resistance of the coating is studied using dynamic potential polarisation (Tafel) and electrochemical impedance spectroscopy (EIS). The results showed that the LDH composite coating with unique layered nanostructure as a solid lubricating film can effectively improve the friction and wear reduction performance of the metal substrate. Chemical modification treatment by embedding vanadate anions in the LDH coating leads to the change of LDH layer spacing and the increase of interlayer channels, resulting in the best friction and wear reduction and corrosion resistance of the LDH coating. Finally, the mechanism of hydrotalcite coating as a solid lubricating film for friction and wear reduction is proposed.
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Affiliation(s)
- Lixia Ying
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
| | - Di Wang
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
| | - Chongyang Nie
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
| | - Tianlin Zhu
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
| | - Fangping Cao
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
| | - Ruxin Liu
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
| | - Zhiyong Wang
- College of Mechanical and Electrical Engineering, Harbin Engineering University Harbin 150001 China
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Zhao X, Yuan Y, Wei Y, Zhang Z, Zhang Y. LDH-Based "Smart" Films for Corrosion Sensing and Protection. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093483. [PMID: 37176365 PMCID: PMC10180374 DOI: 10.3390/ma16093483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
In a "smart" corrosion-protective coating system, both the active anti-corrosion and the early corrosion detection of underlying metals are highly required. It is practical significant to develop materials that possess self-detecting of the early local corrosion and self-healing of coating defects simultaneously. The organic compound 8-hydroxyquinoline (8HQ) is an effective inhibitor and a fluorescent sensor probe for corrosion of aluminum alloy. Therefore, a layer double hydroxide (LDH) nanocontainer film loaded with the 8HQ was developed for the active corrosion protection purpose of aluminum alloy AA2024. In corrosive environments, the 8HQ are released from LDH film to inhibit the corrosion process, leading to the loss of the complexation with Al3+ ions in LDH laminates, thus turning off fluorescence. Results show that the LDH film loaded with 8HQ composites can improve the anti-corrosion performance of the film by releasing corrosion inhibitors on demand. Simultaneously, due to the complexation of 8HQ and Al3+ ions, the LDH film is fluorescent at the initial stage under ultraviolet light, and then becomes non-fluorescent at the corrosion sites, indicating the corrosion evolution process of the coating. The 8HQ-loaded LDH film with self-healing and self-detecting dual functions provides promising opportunities for the effective corrosion protection of aluminum alloy due to its "smart" and multifunctional properties.
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Affiliation(s)
- Xuejie Zhao
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Yujie Yuan
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Yuankun Wei
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - Zhe Zhang
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
| | - You Zhang
- College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
- Beijing Key Lab of Special Elastomeric Composite Materials, Beijing 102617, China
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Bordonhos M, Galvão TLP, Gomes JRB, Gouveia JD, Jorge M, Lourenço MAO, Pereira JM, Pérez‐Sánchez G, Pinto ML, Silva CM, Tedim J, Zêzere B. Multiscale Computational Approaches toward the Understanding of Materials. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202200628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marta Bordonhos
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
- CERENA, Department of Chemical Engineering Instituto Superior Técnico University of Lisbon Avenida Rovisco Pais, No. 1 Lisbon 1049‐001 Portugal
| | - Tiago L. P. Galvão
- CICECO ‐ Aveiro Institute of Materials Department of Materials and Ceramic Engineering University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José R. B. Gomes
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José D. Gouveia
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Miguel Jorge
- Department of Chemical and Process Engineering University of Strathclyde 75 Montrose Street Glasgow G1 1XJ UK
| | - Mirtha A. O. Lourenço
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José M. Pereira
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Germán Pérez‐Sánchez
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Moisés L. Pinto
- CERENA, Department of Chemical Engineering Instituto Superior Técnico University of Lisbon Avenida Rovisco Pais, No. 1 Lisbon 1049‐001 Portugal
| | - Carlos M. Silva
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - João Tedim
- CICECO ‐ Aveiro Institute of Materials Department of Materials and Ceramic Engineering University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Bruno Zêzere
- CICECO ‐ Aveiro Institute of Materials Department of Chemistry University of Aveiro Campus Universitário de Santiago Aveiro 3810‐193 Portugal
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Tedim J, Galvão TLP, Yasakau KA, Bastos A, Gomes JRB, Ferreira MGS. Layered double hydroxides for corrosion-related applications—Main developments from 20 years of research at CICECO. Front Chem 2022; 10:1048313. [DOI: 10.3389/fchem.2022.1048313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/25/2022] [Indexed: 11/19/2022] Open
Abstract
This work describes the main advances carried out in the field of corrosion protection using layered double hydroxides (LDH), both as additive/pigment-based systems in organic coatings and as conversion films/pre-treatments. In the context of the research topic “Celebrating 20 years of CICECO”, the main works reported herein are based on SECOP’s group (CICECO) main advances over the years. More specifically, this review describes structure and properties of LDH, delving into the corrosion field with description of pioneering works, use of LDH as additives to organic coatings, conversion layers, application in reinforced concrete and corrosion detection, and environmental impact of these materials. Moreover, the use of computational tools for the design of LDH materials and understanding of ion-exchange reactions is also presented. The review ends with a critical analysis of the field and future perspectives on the use of LDH for corrosion protection. From the work carried out LDH seem very tenable, versatile, and advantageous for corrosion protection applications, although several obstacles will have to be overcome before their use become commonplace.
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Novell Leruth G, Kuznetsova A, Tedim J, Gomes JRB, Galvão TLP. Molecular Dynamics Model to Explore the Initial Stages of Anion Exchange involving Layered Double Hydroxide Particles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4039. [PMID: 36432324 PMCID: PMC9695576 DOI: 10.3390/nano12224039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
A classical molecular dynamics (MD) model of fully unconstrained layered double hydroxide (LDH) particles in aqueous NaCl solution was developed to explore the initial stages of the anion exchange process, a key feature of LDHs for their application in different fields. In particular, this study focuses on the active corrosion protection mechanism, where LDHs are able to entrap aggressive species from the solution while releasing fewer corrosive species or even corrosion inhibitors. With this purpose in mind, it was explored the release kinetics of the delivery of nitrate and 2-mercaptobenzothiazole (MBT, a typical corrosion inhibitor) from layered double hydroxide particles triggered by the presence of aggressive chloride anions in solution. It was shown that the delamination of the cationic layers occurs during the anion exchange process, which is especially evident in the case of MBT-.
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Affiliation(s)
- Gerard Novell Leruth
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Alena Kuznetsova
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- Smallmatek—Small Materials and Technologies Lda., Rua dos Canhas, 3810-075 Aveiro, Portugal
| | - João Tedim
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - José R. B. Gomes
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Tiago L. P. Galvão
- CICECO-Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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Rahmani M, Dehghani A, Bahlakeh G, Ramezanzadeh B. Introducing GO-based 2D-platform modified via Phytic acid molecules decorated by zeolite imidazole ZIF-9 MOFs for designing multi-functional polymeric anticorrosive system; DFT-D computations and experimental studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119945] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Holzner T, Luckeneder G, Strauß B, Valtiner M. Environmentally Friendly Layered Double Hydroxide Conversion Layers: Formation Kinetics on Zn-Al-Mg-Coated Steel. ACS APPLIED MATERIALS & INTERFACES 2022; 14:6109-6119. [PMID: 35050563 PMCID: PMC8815042 DOI: 10.1021/acsami.1c19573] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/10/2022] [Indexed: 05/26/2023]
Abstract
Phosphate- or chromate-based industrially produced conversion layers, while effectively increasing adhesion for organic coatings and corrosion resistance, come at the cost of environmentally problematic and harmful treatment solutions and waste. In this respect, layered double hydroxide (LDH)-based conversion layers offer an environmentally benign alternative without toxicologically concerning compounds in the treatment solution. Here, we study an LDH conversion layer on Zn-Al-Mg-coated steel (ZM-coated steel), which was produced by immersion into a carbonate- and magnesium-containing alkaline solution. The mechanism and kinetics of the conversion layer formation were investigated with in situ open circuit potential measurements, cyclic voltammetry (CV), and scanning electron microscopy (SEM). Acceleration of the LDH layer formation through high convection in the treatment solution was found. This was attributed to a higher oxygen availability at the metal/solution interface because no diffusion-limited state during the layer formation is reached due to high convection. The importance of oxygen within the kinetics indicates a corrosion-like mechanism, with cathodic and anodic sites on the steel sample. The LDH formation happens by co-precipitation of ions present in the treatment solution and dissolved ions from the ZM-coated steel. With CV, SEM, and X-ray diffraction, the growth of the LDH conversion layer was investigated with respect to the immersion time. It was found that after 30 s, the sample surface was almost fully covered with an LDH layer, and with the increasing immersion time, the layer grows in thickness. Increased understanding on the kinetics and mechanism of the LDH conversion layer formation on ZM-coated steel gives rise to a targeted optimization of the treatment solution and process parameters.
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Affiliation(s)
- Tobias Holzner
- voestalpine
Stahl GmbH, Research and Development, voestalpine Str. 3, 4020 Linz, Austria
- Vienna
University of Technology, Institute for Applied Physics, A-1040 Vienna, Austria
| | - Gerald Luckeneder
- voestalpine
Stahl GmbH, Research and Development, voestalpine Str. 3, 4020 Linz, Austria
| | - Bernhard Strauß
- voestalpine
Stahl GmbH, Research and Development, voestalpine Str. 3, 4020 Linz, Austria
| | - Markus Valtiner
- Vienna
University of Technology, Institute for Applied Physics, A-1040 Vienna, Austria
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Epoxy coating with excellent anticorrosion and pH-responsive performances based on DEAEMA modified mesoporous silica nanomaterials. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127951] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Abdel-Tawab H, Ibrahim AM, Hussein T, Mohamed F. Mechanism of action and toxicological evaluation of engineered layered double hydroxide nanomaterials in Biomphalaria alexandrina snails. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:11765-11779. [PMID: 34545528 DOI: 10.1007/s11356-021-16332-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Layered double hydroxide (LDH) nanomaterials have recently become immense research area as it is used widely in industries. So, it's chance of their release into natural environment and risk assessment to nontarget aquatic invertebrate increasing. So, the present study aimed to synthesize and confirm the crystalline formation of Co-Cd-Fe LDHs and Co-Cd-Fe/PbI2 (LDH) and then to investigate the toxic impact of the two LDH on the adult freshwater snails (Biomphalaia alexandrina). Results showed that Co-Cd-Fe/PbI2 LDH has more toxic effect to adult Biomphalaria than Co-Cd-Fe LDHs (LC50 was 56.4 and 147.7 mg/L, 72 h of exposure, respectively). The effect of LC25 (117.1 mg/L) of Co-Cd-Fe LDHs exposure on the embryo showed suppression of embryonic development and induced embryo malformation. Also, it showed alterations in the tegmental architectures of the mantle-foot region of B. alexandrina snails as declared in scanning electron micrograph. Also, exposure to this sublethal concentration caused abnormalities in hemocyte shapes and upregulated IL-2 level in soft tissue. In addition, it decreased levels of nonenzymatic reduced glutathione (GSH), catalase (CAT), superoxide dismutase (SOD), caspase-3 activity, and total protein content in significant manner. Glutathione S-transferase (GST) activity was not affected by LDH exposure. It caused histopathological damages in both glands of snails and also caused a genotoxic effect in their cells. The results from the present study indicated that LDH has risk assessment on aquatic B. alexandrina snails and that it can be used as a biological indicator of water pollution with LDH.
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Affiliation(s)
- Heba Abdel-Tawab
- Faculty of Science, Department of Zoology, Beni-Suef University, Beni-Suef, Egypt.
| | - Amina M Ibrahim
- Environmental Research and Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
| | - Taghreed Hussein
- National Organization for Drug Control and Research, Cairo, Egypt
| | - Fatma Mohamed
- Nanophotonics and Applications (NPA) lab, Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
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13
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Fedel M, Zanella C, Ferrari L, Deflorian F. Effect of the synthesis parameters of in situ grown Mg-Al LDHs on the filiform corrosion susceptibility of painted AA5005. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Mohamed F, Bhnsawy N, Shaban M. Reusability and stability of a novel ternary (Co-Cd-Fe)-LDH/PbI 2 photoelectrocatalytst for solar hydrogen production. Sci Rep 2021; 11:5618. [PMID: 33692427 PMCID: PMC7970923 DOI: 10.1038/s41598-021-85005-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/08/2021] [Indexed: 11/26/2022] Open
Abstract
The design of highly active and cost-effective photoelectrocatalysts for effective hydrogen generation becomes a mandatory issue due to the demands on sustainable solar fuels. Herein a novel ternary Co-Cd-Fe LDH/PbI2 nanocomposite (T-LDH/PbI2NC) was fabricated by combining strategies of doping and in-situ loading of ternary Co-Cd-Fe LDH. The morphological, structural, and optical properties of PbI2, T-LDH, and T-LDH/PbI2 NC were studied by different techniques. LDH narrows the bandgap of the nanocomposite to 2.53 eV which prolongs the lifetime of the photo-induced electrons. Subsequently, the use of T-LDH/PbI2 NC improves the photoelectrocatalytic (PEC) H2 production rate. T-LDH/PbI2 NC shows a catalytic H2 production rate of 107.53 mmol h-1 cm-2 with IPCE% of 83.8% for 307 nm and 67.3% for 508 nm. The ABPE% reaches its supreme of 4.24% for - 0.58 V and 5.41% for - 0.97 V, these values are the highest values yet for LDH-based photocatalysts. The influences of the operating temperature and monochromatic illumination on the PEC performance were studied. Also, the electrochemical surface area, thermodynamic parameters, and Tafe slopes are calculated to label the hydrogen evolution mechanism. Moreover, the stability and reusability of the T-LDH/PbI2 NC photoelectrode were investigated. This work not only illustrated a simplistic and accessible way to produce a new category of highly efficient photocatalysts compared to the previously reported LDH-based PEC catalysts but also demonstrates a new point of view for improving PEC performance towards industrial water splitting under sunlight irradiation.
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Affiliation(s)
- Fatma Mohamed
- Materials Science Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt.
- Nanophotonics and Applications (NPA) Lab, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt.
| | - Nour Bhnsawy
- Nanophotonics and Applications (NPA) Lab, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
- Department of Physics, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351, Saudi Arabia
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Performance Evaluation of Layered Double Hydroxides Containing Benzotriazole and Nitrogen Oxides as Autonomic Protection Particles against Corrosion. INT J POLYM SCI 2021. [DOI: 10.1155/2021/6630194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Layered double hydroxides (LDH) are lamellar structures with positively charged laminates and charge-compensating interlayer anions. The ion-exchange capacity of LDHs makes them as promising hosts for corrosion inhibitor anions with stimulus-responsive release and self-healing anticorrosion. In the current work, LDHs loaded with two different corrosion inhibitors (nitrogen oxides and benzotriazole) were evaluated for their ion-exchange capacity and autonomic protection against corrosion on carbon steel. Studies on nitrogen oxide-loaded LDH (NOx-LDH) showed that nitrogen oxides were successfully intercalated in LDH structure, which were released in chloride media. Open Circuit Potential (OCP) results showed that NOx-LDH extract shifted OCP to nobler values, indicating the protection of metal. For benzotriazole-loaded LDH (BTZ-LDH), the results indicated the presence of benzotriazole in the structure, but its release was not observed. OCP results showed no significant increase of carbon steel protection, corroborating with the conclusion that benzotriazole ions did not migrate to metal surface. Considering these results, the insertion of NOx-LDH in an automotive primer was proceeded, under three different concentrations (0.2. 1.0, and 3.0%). Electrochemical impedance spectroscopy (EIS) showed that the more effective NOx-LDH concentration on corrosion delay was 0.2%, which better balanced protection level conferred by LDH with a possible loss on effectiveness of coating due to increase in porosity.
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16
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Mohammadi I, Shahrabi T, Mahdavian M, Izadi M. Chemical modification of LDH conversion coating with diethyldithiocarbamate as a novel anti-corrosive film for AA2024-T3. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.12.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bakhtaoui N, Benali O, Mazarío E, Recio FJ, Herrasti P. Layered double hydroxides intercalated with methyl orange as a controlled-release corrosion inhibitor for iron in chloride media. NANO EXPRESS 2021. [DOI: 10.1088/2632-959x/abe2b6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
In this study, the corrosion inhibition properties of nanocontainer-type layered double hydroxide (LDH) are evaluated on iron that is immersed in a 3.5% NaCl aqueous solution. LDH ZnAl-NO3 was synthesized via coprecipitation. The material presents satisfactory crystallinity with a Zn/Al ratio of 2:1. Methyl orange (MO) has been added into the synthesis process by exchange with nitrate ions and/or by adsorption of MO onto LDH surfaces (LDH-MO). Iron was immersed in solutions with various concentrations of LDH and LDH-MO ranged 1–6 gl−1, and the corrosion inhibition properties were investigated using linear sweep votammetry, electrochemical impedance spectroscopy (EIS), and SEM. Based on pitting potential studies, LDH has demonstrated inhibition of the pitting corrosion process, and the optimal concentration was identified as 2 gl−1. The presence of MO in LDH provides excellent anticorrosive properties with a mixed inhibition mechanism. The corrosion potential of LDH-MO presents more noble values and exchange current densities that are one order of magnitude less than those of the bare iron after 72 h of immersion in a 3.5% NaCl aqueous solution. EIS results corroborated that the corrosion resistance increased when 2 gl−1 of LDH-MO was in solution. SEM images support the anticorrosive behaviour of the LDH-MO.
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18
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Effect of Microstructure on Layered Double Hydroxides Film Growth on Mg-2Zn-xMn Alloy. COATINGS 2021. [DOI: 10.3390/coatings11010059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The poor corrosion resistance of magnesium (Mg) alloys significantly restricts their wide applications. The preparation of a layered double hydroxides (LDHs) film can provide effective corrosion protection for Mg alloys. Nevertheless, research on the effect of the Mg alloy microstructure on LDHs film growth is paid less attention, which was studied in detail in this work. Herein, a Mg-2Zn-xMn alloy with different Mn contents was produced, and an LDHs film was then synthesized on their surfaces. The addition of Mn causes a different microstructure in the Mg-2Zn-xMn alloy, which is gradually refined with increasing Mn content, further affecting the surface morphology, surface chemistry, and corrosion protection of the LDHs film. When the Mn content is 1 wt.% (x = 1), the LDHs film presents the best corrosion protection, with the lowest corrosion current density. No obvious corrosion product could be observed by the naked eyes on the surface. By contrast, severe corrosion occurs on the Mg-2Zn-0Mn alloy (x = 0). Finally, the LDHs film growth mechanism was proposed.
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Samiee R, Ramezanzadeh B, Mahdavian M, Alibakhshi E, Bahlakeh G. Designing a non-hazardous nano-carrier based on graphene oxide@Polyaniline-Praseodymium (III) for fabrication of the Active/Passive anti-corrosion coating. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:123136. [PMID: 33027879 DOI: 10.1016/j.jhazmat.2020.123136] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/16/2020] [Accepted: 06/03/2020] [Indexed: 06/11/2023]
Abstract
In this work, graphene oxide (GO) based nano-platforms were applied as a non-hazardous solid container with high encapsulating capacity and controllable release activity of eco-friendly inhibitor. For the first time, the adsorption and release properties of the praseodymium cations (Pr3+) on GO nanosheets functionalized with polyaniline (PANI) were investigated. The Pr3+ cations adsorption/desorption capacity of GOPANI nano-sheets was assessed by Inductively Coupled Plasma (ICP), X-ray photoelectron spectroscopy (XPS), Field Emission Scanning Electron Microscopy (FE-SEM), and High-resolution transmission electron microscopy (HR-TEM) techniques. The obtained results proved that the container modified with Pr3+ cations at pH of 7, 600 ppm of adsorpt, and 1 mg/cc of adsorbent dosage provided the highest capacity of inhibitors adsorption/release rates. The adsorption capacity of the GO-PANIs reached more than 500 mg/g. Also, the modified carrier desorbed about 70 % of loaded Pr3+ cations in the corrosion simulated condition. The self-healing anti-corrosion ability of the constructed containers in an organic-inorganic hybrid coating (OIHC) was shown by electrochemical analyses results. The resistance of coating with the loaded carriers has increased about 1 order of magnitude in comparison with the neat silane. Moreover, the scratched coatings containing the inhibitor loaded GO-PANIs showed extraordinary total resistance of about 25 Kohm. cm2.
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Affiliation(s)
- Reza Samiee
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran
| | - Bahram Ramezanzadeh
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran.
| | - Mohammad Mahdavian
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran.
| | - Eiman Alibakhshi
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran
| | - Ghasem Bahlakeh
- Department of Chemical Engineering, Faculty of Engineering, Golestan University, Aliabad Katoul, Iran
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He QQ, Zhou MJ, Hu JM. Electrodeposited Zn-Al layered double hydroxide films for corrosion protection of aluminum alloys. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136796] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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21
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Petrova E, Serdechnova M, Shulha T, Lamaka SV, Wieland DCF, Karlova P, Blawert C, Starykevich M, Zheludkevich ML. Use of synergistic mixture of chelating agents for in situ LDH growth on the surface of PEO-treated AZ91. Sci Rep 2020; 10:8645. [PMID: 32457477 PMCID: PMC7250903 DOI: 10.1038/s41598-020-65396-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 04/27/2020] [Indexed: 11/09/2022] Open
Abstract
The principal possibility to grow layered double hydroxide (LDH) at ambient pressure on plasma electrolytic oxidation (PEO) treated magnesium alloy AZ91 in the presence of chelating agents is demonstrated for the first time. It avoids hydrothermal autoclave conditions, which strongly limit wide industrial application of such coating systems, and the presence of carbonate ions in the electrolyte, which lead to the formation of "passive" non-functionalizable LDH. A combination of chelating agents (sodium diethylenetriamine-pentaacetate (DTPA) and salicylate) were introduced to the treatment solution. The role of each additive and the influence of treatment bath composition on the LDH formation processes are discussed. A synergistic effect of DTPA and salicylate during LDH formation is discovered and its possible explanation is proposed.
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Affiliation(s)
- E Petrova
- Faculty of Chemistry, Belarusian State University, Nezavisimosti Avenue 4, 220030, Minsk, Belarus
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - M Serdechnova
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany.
| | - T Shulha
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - S V Lamaka
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - D C F Wieland
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - P Karlova
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - C Blawert
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - M Starykevich
- Department of Materials and Ceramic Engineering, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - M L Zheludkevich
- MagIC-Magnesium Innovation Center, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
- Faculty of Engineering, University of Kiel, Kaiserstraße 2, 24143, Kiel, Germany
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22
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Layered Double Hydroxide Protective Films Developed on Aluminum and Aluminum Alloys: Synthetic Methods and Anti-Corrosion Mechanisms. COATINGS 2020. [DOI: 10.3390/coatings10040428] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This work reviews the characteristics of layered double hydroxides (LDHs) in the context of protective thin films to enhance the corrosion resistance properties of aluminum alloys. A discussion is made in detail about the LDH protection mechanism and the effect of synthesis approaches on LDH structural variations and the corresponding anti-corrosion behavior. LDHs anion-exchange behavior to host inorganic/organic anions makes them a potential material to investigate for anti-corrosion film. This unique advantage and the availability of a wide range of metal oxide-based layers, interlayer anions, and self-healing properties make LDH family an attractive choice for the development of compact LDHs based smart coating systems.
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23
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Use of ZnAl-Layered Double Hydroxide (LDH) to Extend the Service Life of Reinforced Concrete. MATERIALS 2020; 13:ma13071769. [PMID: 32283861 PMCID: PMC7179013 DOI: 10.3390/ma13071769] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/03/2020] [Accepted: 04/07/2020] [Indexed: 12/04/2022]
Abstract
This work investigated the use of ZnAl-layered double hydroxide (LDH) intercalated with nitrate or nitrite ions for controlling the corrosion of steel in reinforced concrete. The work started by analyzing the stability of the powder in the 1–14 pH range and the capacity for capturing chloride ions in aqueous solutions of different pH. The effect of the ZnAl-LDH on the corrosion of steel was studied in aqueous 0.05 M NaCl solution and in mortars immersed in 3.5% NaCl. It was found that the LDH powders dissolved partially at pH > 12. The LDH was able to capture chloride ions from the external solution, but the process was pH-dependent and stopped at high pH due to the partial dissolution of LDH and the preferential exchange of OH– ions. These results seemed to imply that ZnAl-LDH would not work in the alkaline environment inside the concrete. Nonetheless, preliminary results with mortars containing ZnAl-LDH showed lower penetration of chloride ions and higher corrosion resistance of the steel rebars.
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24
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Figueira RB. Hybrid Sol-gel Coatings for Corrosion Mitigation: A Critical Review. Polymers (Basel) 2020; 12:E689. [PMID: 32204462 PMCID: PMC7182864 DOI: 10.3390/polym12030689] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/10/2020] [Accepted: 03/17/2020] [Indexed: 02/06/2023] Open
Abstract
The corrosion process is a major source of metallic material degradation, particularly in aggressive environments, such as marine ones. Corrosion progression affects the service life of a given metallic structure, which may end in structural failure, leakage, product loss and environmental pollution linked to large financial costs. According to NACE, the annual cost of corrosion worldwide was estimated, in 2016, to be around 3%-4% of the world's gross domestic product. Therefore, the use of methodologies for corrosion mitigation are extremely important. The approaches used can be passive or active. A passive approach is preventive and may be achieved by emplacing a barrier layer, such as a coating that hinders the contact of the metallic substrate with the aggressive environment. An active approach is generally employed when the corrosion is set in. That seeks to reduce the corrosion rate when the protective barrier is already damaged and the aggressive species (i.e., corrosive agents) are in contact with the metallic substrate. In this case, this is more a remediation methodology than a preventive action, such as the use of coatings. The sol-gel synthesis process, over the past few decades, gained remarkable importance in diverse areas of application. Sol-gel allows the combination of inorganic and organic materials in a single-phase and has led to the development of organic-inorganic hybrid (OIH) coatings for several applications, including for corrosion mitigation. This manuscript succinctly reviews the fundamentals of sol-gel concepts and the parameters that influence the processing techniques. The state-of-the-art of the OIH sol-gel coatings reported in the last few years for corrosion protection, are also assessed. Lastly, a brief perspective on the limitations, standing challenges and future perspectives of the field are critically discussed.
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Affiliation(s)
- Rita B Figueira
- Centro de Química, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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25
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Iqbal MA, Sun L, LaChance AM, Ding H, Fedel M. In situ growth of a CaAl-NO3−-layered double hydroxide film directly on an aluminum alloy for corrosion resistance. Dalton Trans 2020; 49:3956-3964. [DOI: 10.1039/c9dt01773a] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this study, a calcium–aluminum-layered double hydroxide (CaAl-LDH) thin film was grown on an AA6082 aluminum alloy, for the very first time, by using a facile in situ growth method in an effort to investigate the CaAl-LDH structural geometry and corresponding corrosion resistance properties.
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Affiliation(s)
- Muhammad Ahsan Iqbal
- Department of Industrial Engineering
- University of Trento
- Povo
- Italy
- Polymer Program
| | - Luyi Sun
- Polymer Program
- Institute of Materials Science and Department of Chemical and Biomolecular Engineering
- University of Connecticut
- Storrs
- USA
| | - Anna Marie LaChance
- Polymer Program
- Institute of Materials Science and Department of Chemical and Biomolecular Engineering
- University of Connecticut
- Storrs
- USA
| | - Hao Ding
- Polymer Program
- Institute of Materials Science and Department of Chemical and Biomolecular Engineering
- University of Connecticut
- Storrs
- USA
| | - Michele Fedel
- Department of Industrial Engineering
- University of Trento
- Povo
- Italy
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26
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Highlights on the Catalytic Properties of Polyoxometalate-Intercalated Layered Double Hydroxides: A Review. Catalysts 2020. [DOI: 10.3390/catal10010057] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Layered double hydroxides (LDH) are an extended class of two-dimensional anionic materials that are known for their unique lamellar structure, versatile composition, and tunable properties. The layered architecture allows the intercalation between the positively charged sheets of a vast variety of anionic species, including oxometalates and polyoxometalates (POM). The hybrid composites that were developed using POM and LDH show great advantages when compared to both parent materials causing the appearance of new functionalities, which may lead to remarkable contributions in many areas of application, especially in catalysis. The current review paper emphases all of the crucial works already existing in literature that are related to the large group of POM-LDH solids and their use as catalysts for fine organic synthesis. The new trends in the development of the POM-LDH catalysts are highlighted based on the overview of 121 scientific articles that were published between 1984 and 2019. The main topics are focused primarily on the synthesis, characterization, and the catalytic applications of different LDH systems hosting polyoxometalates with low, medium, and high nuclearity. The intense exploration of the POM-LDH field has led to the obtaining of countless effective catalysts used in various types of reactions, from condensation, esterification, halodecarboxylation, to oxidation and epoxidation.
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27
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Boyaciyan D, von Klitzing R. Stimuli-responsive polymer/metal composites: From fundamental research to self-regulating devices. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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28
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Shchukina E, Shchukin DG. Nanocontainer-Based Active Systems: From Self-Healing Coatings to Thermal Energy Storage. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8603-8611. [PMID: 30810043 PMCID: PMC7155170 DOI: 10.1021/acs.langmuir.9b00151] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/15/2019] [Indexed: 06/01/2023]
Abstract
We highlight the development of nanocontainer-based active materials started in 2006 at the Max Planck Institute of Colloids and Interfaces under the supervision of Prof. Helmuth Möhwald. The active materials encapsulated in the nanocontainers with controlled shell permeability have been first applied for self-healing coatings with controlled release of the corrosion inhibitor. The nanocontainers have been added to the paint formulation matrix at 5-10 wt % concentration, which resulted in attaining a coating-autonomous self-healing ability. This research idea has attracted the attention of many scientists around the world (>1500 publications during the last 10 years) and has already been transferred to the commercialization level. The current trend in nanocontainer-based active systems is devoted to the multifunctionality of the capsules which can combine self-healing, antibacterial, thermal, and other functionalities into one host matrix. This article summarizes the previous research done in the area of nanocontainer-based active materials together with future perspectives of capsule-based materials with antifouling or thermoregulating activity.
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29
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Mikhailau A, Maltanava H, Poznyak SK, Salak AN, Zheludkevich ML, Yasakau KA, Ferreira MGS. One-step synthesis and growth mechanism of nitrate intercalated ZnAl LDH conversion coatings on zinc. Chem Commun (Camb) 2019; 55:6878-6881. [PMID: 31134252 DOI: 10.1039/c9cc02571e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
An approach for the synthesis of ZnAl-NO3 LDH conversion coatings on zinc in an aqueous acidic Al(NO3)3/NaNO3 solution is demonstrated for the first time. The growth mechanism has been investigated using time resolved structural, microstructural and analytical methods. A LDH growth model involving both electrochemical and chemical processes is suggested.
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Affiliation(s)
- Aliaksandr Mikhailau
- Department of Materials and Ceramics Engineering, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
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30
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Layered Double Hydroxide Clusters as Precursors of Novel Multifunctional Layers: A Bottom-Up Approach. COATINGS 2019. [DOI: 10.3390/coatings9050328] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The specific microstructure of aluminum alloys is herein explored to grow spatially-resolved layered double hydroxide (SR-LDH) clusters on their surface. Upon chemical modification of LDHs via intercalation, adsorption and grafting with different functional molecules, novel surface-engineered surfaces were obtained. Crystal structure and phase composition were analyzed by X-ray diffraction (XRD) and surface morphology was observed by scanning electron microscopy (SEM). X-ray photoelectron spectroscopy (XPS) and glow discharge optical emission spectrometry (GDOES) were used to correlate structural changes upon ion-exchange and interfacial modifications with chemical composition and surface profiles of the SR-LDH films, respectively. The protection conferred by these films against localized corrosion was investigated at microscale using the scanning vibrating electrode technique (SVET). LDH-NO3 phase was obtained by direct growth onto AA2024 surface, as evidenced by (003) and (006) XRD diffraction reflections. After anion exchange of nitrate with 2-mercaptobenzothiazole (MBT) there was a decrease in the SR-LDH thickness inferred from GDOES profiles. The subsequent surface functionalization with HTMS was confirmed by the presence of Si signal in XPS and GDOES analyses, leading to an increase in the water contact angle (c.a 144° ± 3°). SVET measurements of the SR-LDH films revealed exceptional corrosion resistance, whereas the bioluminescent bacteria assay proved the anti-microbial character of the obtained films. Overall the results obtained show an effective corrosion protection of the SR-LDHs when compared to the bare substrate and the potential of these films for biofouling applications as new Cr-free pre-treatments.
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31
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Wang T, Du J, Ye S, Tan L, Fu J. Triple-Stimuli-Responsive Smart Nanocontainers Enhanced Self-Healing Anticorrosion Coatings for Protection of Aluminum Alloy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4425-4438. [PMID: 30608123 DOI: 10.1021/acsami.8b19950] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Novel acid/alkali/corrosion potential triple-stimuli-responsive smart nanocontainers (TSR-SNs) were successfully assembled to regulate the release of an encapsulated corrosion inhibitor, benzotriazole (BTA), by installing specially structured bistable pseudorotaxanes as supramolecular nanovalves onto orifices of mesoporous silica nanoparticles. In normal conditions, BTA molecules were sealed in the mesopores. Upon any stimulus of acid, alkali, or corrosion potential, BTA molecules were quickly released because of the open states of the supramolecular nanovalves. TSR-SNs as smart nanocontainers were added into the SiO2-ZrO2 sol-gel coating to fabricate a stimuli-feedback, corrosion-compensating self-healing anticorrosion coating (SF-SHAC). Compared with the conventional pH-responsive smart nanocontainers synthesized for the SHAC, TSR-SNs not only respond to the pH changes occurring on corrosive microregions but also, and more importantly, feel the corrosion potential of aluminum alloys and give quick feedback. This design avoids wasting smart nanocontainers because of the local-dependent, gradient pH stimulus intensities and obviously enhances the response sensitivity of the SF-SHAC. Electrochemical impedance spectroscopy and salt spray tests prove the excellent physical barrier of the SF-SHAC. Through scanning vibrating electrode technique measurements, the SF-SHAC doped with TSR-SNs demonstrates inhibiting rates for corrosive microcathodic/anodic current densities that are faster than other control SHACs. The new incorporated corrosion potential-responsive function ensures the efficient working efficiency of TSR-SNs and makes full use of the preloaded corrosion inhibitors as repair factors.
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Affiliation(s)
- Ting Wang
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Juan Du
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Sheng Ye
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
- National Special Superfine Powder Engineering Research Centre , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Linghua Tan
- National Special Superfine Powder Engineering Research Centre , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - JiaJun Fu
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
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32
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Shchukina E, Wang H, Shchukin DG. Nanocontainer-based self-healing coatings: current progress and future perspectives. Chem Commun (Camb) 2019; 55:3859-3867. [DOI: 10.1039/c8cc09982k] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Nanocontainers add more functionalities to the standard coating formulations.
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Affiliation(s)
- Elena Shchukina
- Stephenson Institute for Renewable Energy
- Department of Chemistry
- University of Liverpool
- L69 7ZF Liverpool
- UK
| | - Hongqiang Wang
- Centre for Nanoenergy Materials
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an
- P. R. China
| | - Dmitry G. Shchukin
- Stephenson Institute for Renewable Energy
- Department of Chemistry
- University of Liverpool
- L69 7ZF Liverpool
- UK
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33
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Kaseem M, Ko YG. A novel composite system composed of zirconia and LDHs film grown on plasma electrolysis coating: Toward a stable smart coating. ULTRASONICS SONOCHEMISTRY 2018; 49:316-324. [PMID: 30150026 DOI: 10.1016/j.ultsonch.2018.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/15/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
A novel composite system composed of zirconia and double hydroxide layers (LDHs) was successfully fabricated on the plasma electrolysis (PE) coating. For this aim, the molybdate-loaded LDHs film grown on the PE film of aluminum alloy was modified additionally by zirconia nanoparticles via a facile dip-coating method. The MoO42- anions which were obtained by anion exchange process from the precursor CeMgAl-LDH film, led to decrease the distance between the flakes of LDHs film where a flower-like structure was successfully developed. Moreover, the inclusion of zirconia helped to decrease the size of pores present in the LDHs films. Accordingly, a superior smart protective film was obtained due to the possible synergetic effects between the MoO42- and Ce3+ ions released from LDHs film as well as the high chemical stability of zirconia. The LDHs film modified by zirconia can be regarded as a stable smart coating, meaning that it has the ability to control the release of corrosion inhibitors and providing an excellent long-term electrochemical performance as well.
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Affiliation(s)
- Mosab Kaseem
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Young Gun Ko
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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Shulha TN, Serdechnova M, Lamaka SV, Wieland DCF, Lapko KN, Zheludkevich ML. Chelating agent-assisted in situ LDH growth on the surface of magnesium alloy. Sci Rep 2018; 8:16409. [PMID: 30401953 PMCID: PMC6219525 DOI: 10.1038/s41598-018-34751-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 10/22/2018] [Indexed: 11/09/2022] Open
Abstract
In situ formation of layered double hydroxides (LDH) on metallic surfaces has recently been considered a promising approach for protective conversion surface treatments for Al and Mg alloys. In the case of Mg-based substrates, the formation of LDH on the metal surface is normally performed in autoclave at high temperature (between 130 and 170 °C) and elevated pressure conditions. This hampers the industrial application of MgAl LDH to magnesium substrates. In this paper, the growth of MgAl LDH conversion coating directly on magnesium alloy AZ91 at ambient conditions (25 °C) or elevated temperatures is reported in carbonate free electrolyte for the first time. The direct LDH synthesis on Mg alloys is enabled by the presence of organic chelating agents (NTA and EDTA), which control the amount of free and/or hydroxyl bound Mg2+ and Al3+ in the solution. The application of the chelating agents help overcoming the typical technological limitations of direct LDH synthesis on Mg alloys. The selection of chelators and the optimization of the LDH treatment process are supported by the analysis of the thermodynamic chemical equilibria.
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Affiliation(s)
- T N Shulha
- MagIC-Magnesium Innovation Center, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
- Faculty of Chemistry, Belarusian State University, Nezavisimosti Avenue 4, 220030, Minsk, Belarus
| | - M Serdechnova
- MagIC-Magnesium Innovation Center, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany.
| | - S V Lamaka
- MagIC-Magnesium Innovation Center, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - D C F Wieland
- MagIC-Magnesium Innovation Center, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
| | - K N Lapko
- Faculty of Chemistry, Belarusian State University, Nezavisimosti Avenue 4, 220030, Minsk, Belarus
| | - M L Zheludkevich
- MagIC-Magnesium Innovation Center, Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Straβe 1, 21502, Geesthacht, Germany
- Faculty of Engineering, University of Kiel, Kaiserstrasse 2, 24143, Kiel, Germany
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35
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Zea C, Alcántara J, Barranco-García R, Morcillo M, de la Fuente D. Synthesis and Characterization of Hollow Mesoporous Silica Nanoparticles for Smart Corrosion Protection. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E478. [PMID: 29958468 PMCID: PMC6070787 DOI: 10.3390/nano8070478] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 06/26/2018] [Accepted: 06/27/2018] [Indexed: 01/04/2023]
Abstract
Different approaches have been considered for the development of smart anticorrosive coatings by the incorporation of nanocontainers loaded with corrosion inhibitors into the protective layer. Nanocontainers are designed to allow a controlled release of the inhibitor in response to an external stimulus, thus, achieving more efficient and more economical use of the active component. In this case, a pH change is a very interesting stimulus to trigger the release because corrosion processes cause local pH changes. To this end, a special focus has been placed on the use of mesoporous silica nanoparticles (MSN) as nanocontainers due to their interesting characteristics, such as larger surface area, versatile functionalisation, stability, etc. However, the use of hollow mesoporous silica nanoparticles (HMSN), with a large central hole combined with an external mesoporous silica shell, offers an additional advantage due to the higher loading capacity. In the present work, HMSN have been efficiently synthesised, loaded with sodium phosphomolybdate, as a non-toxic alternative to the use of chromates, and encapsulated by a layer of an oppositely charged polyelectrolyte, poly(diallyldimethylammonium chloride) (PDDA). The morphology and textural properties of the produced nanocapsules have been studied by different techniques (SEM/EDS, TEM/EDS, Brunauer⁻Emmett⁻Teller (BET) analysis method, ζ-potential). Finally, the releasing capacity and corrosion protection at different pH values have been studied, confirming the smart behaviour of the encapsulated loaded HMSN.
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Affiliation(s)
- Cristina Zea
- National Centre for Metallurgical Research (CENIM/CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain.
| | - Jenifer Alcántara
- National Centre for Metallurgical Research (CENIM/CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain.
| | - Rosa Barranco-García
- National Centre for Metallurgical Research (CENIM/CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain.
- Institute of Polymer Science and Technology (ICTP/CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Manuel Morcillo
- National Centre for Metallurgical Research (CENIM/CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain.
| | - Daniel de la Fuente
- National Centre for Metallurgical Research (CENIM/CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain.
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36
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Wang J, Zhang T, Li M, Yang Y, Lu P, Ning P, Wang Q. Arsenic removal from water/wastewater using layered double hydroxide derived adsorbents, a critical review. RSC Adv 2018; 8:22694-22709. [PMID: 35539721 PMCID: PMC9081627 DOI: 10.1039/c8ra03647k] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 06/02/2018] [Indexed: 11/29/2022] Open
Abstract
Arsenic pollution has become a worldwide environmental concern. Dangerous arsenic concentrations in natural waters threaten the health of millions of people, and this has received significant attention. Among the various technologies that have been developed for arsenic removal from water, the use of adsorption technology is considered to be a prevailing method, because the adsorption approach usually has high removal efficiency and the advantage of convenience of handling. In recent years, layered double hydroxides (LDHs) have become prime candidates for arsenic removal, due to their hydrophilic nature and cationic layered structures. Research on arsenic removal using LDHs is mainly focused on (1) the influence of the synthesis method and composition of the LDH, (2) the influence of the particle size of the LDH, (3) the influence of the Mg/Al ratio in LDHs, (4) LDH-based hybrids and (5) the competition with other anions. This paper provides a review of the currently available literature focusing on arsenic removal using LDHs for the five parts mentioned above. In addition, based on this overview, a closing section will suggest research efforts for future work. It is expected that this review will provide a summary of the main research in this area, and will also shed light on the direction of future development.
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Affiliation(s)
- Junya Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 Yunnan P. R. China +86 13708409187
| | - Taiping Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 Yunnan P. R. China +86 13708409187
| | - Min Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 Yunnan P. R. China +86 13708409187
| | - Ying Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 Yunnan P. R. China +86 13708409187
| | - Peng Lu
- School of Materials Science and Chemical Engineering, Ningbo University Ningbo 315211 Zhejing P. R. China
| | - Ping Ning
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology Kunming 650500 Yunnan P. R. China +86 13708409187
| | - Qiang Wang
- College of Environmental Science and Engineering, Beijing Forestry University 35 Qinghua East Road, Haidian District Beijing 100083 P. R. China
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Cao Y, Zheng D, Li X, Lin J, Wang C, Dong S, Lin C. Enhanced Corrosion Resistance of Superhydrophobic Layered Double Hydroxide Films with Long-Term Stability on Al Substrate. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15150-15162. [PMID: 29630332 DOI: 10.1021/acsami.8b02280] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A superhydrophobic ZnAl-layered double hydroxide (LDH)-La film was prepared by a hydrothermal method and further modification by laurate anions in this work. Comprehensive characterizations of this film were performed in terms of morphology, composition, structure, roughness, and wettability by scanning electronic microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, three-dimensional laser scanning confocal microscopy. The long-term corrosion protection effect of this superhydrophobic film was investigated deeply by monitoring the changes of the electrochemical impedance spectra for a long time of up to a month in 3.5 wt % NaCl solution. In the meantime, the changes of the contact angle were also recorded with the evolution of the immersion time. The result indicated that the stable superhydrophobic ZnAl-LDH-La film was able to provide efficient protection for the underlying Al substrate for a long time. In addition, the capability of the superhydrophobic surface against harsh conditions, including chemical damages and physical damages, was emphatically investigated. It was found that the superhydrophobic surface was chemically stable toward acid (pH ≥ 3), alkali, and heating, and it also exhibited high ultraviolet (UV) radiation resistance. This superhydrophobic coating maintained superhydrophobicity for 7 days of radiation in an UV chamber equipped with a 40 W UV lamp (λ = 254 nm), indicating superior ability of adapting to outdoor environment. This comprehensive investigation of the superhydrophobic ZnAl-LDH-La film is considerably helpful for researchers and engineers to get deep insight into its potential for practical applications in the field of corrosion and protection.
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38
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Zhang G, Wu L, Tang A, Weng B, Atrens A, Ma S, Liu L, Pan F. Sealing of anodized magnesium alloy AZ31 with MgAl layered double hydroxides layers. RSC Adv 2018; 8:2248-2259. [PMID: 35541445 PMCID: PMC9077258 DOI: 10.1039/c7ra11683g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/27/2017] [Indexed: 11/21/2022] Open
Abstract
In this work, anodized magnesium alloy AZ31 with and without boiling water sealing was pre-prepared, and then MgAl-layered double hydroxide (LDH) films were fabricated on it through hydrothermal chemical conversion of the pre-prepared anodic layer. The morphology, structure, and composition of the films were characterized by XRD, SEM, EDS, FT-IR, XPS and GDOES. It was found that the porosity of the films was reduced after in situ fabrication of the LDHs. The effects of boiling water sealing treatment on the anodized substrate were also discussed. Moreover, the polarization curve, EIS, and immersion tests showed that LDHs fabricated on the anodized substrate with boiling water sealing treatment exhibited a significant long period of protection for the substrate. In this work anodized magnesium alloy AZ31 with and without boiling water sealing was pre-prepared, and then MgAl-layered double hydroxide (LDH) films were fabricated on it through hydrothermal chemical conversion of the pre-prepared anodic layer.![]()
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Affiliation(s)
- Gen Zhang
- College of Materials Science and Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Liang Wu
- College of Materials Science and Engineering
- Chongqing University
- Chongqing 400044
- China
- National Engineering Research Center for Magnesium Alloys
| | - Aitao Tang
- College of Materials Science and Engineering
- Chongqing University
- Chongqing 400044
- China
- National Engineering Research Center for Magnesium Alloys
| | - Bo Weng
- Chongqing Key Lab for Advanced Materials & Clean Energies of Technologies
- Institute for Clean Energy and Advanced Materials
- Southwest University
- Chongqing 400715
- China
| | - Andrej Atrens
- School of Mechanical and Mining Engineering
- The University of Queensland
- Brisbane
- Australia
| | - Shida Ma
- College of Materials Science and Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Lei Liu
- College of Materials Science and Engineering
- Chongqing University
- Chongqing 400044
- China
| | - Fusheng Pan
- College of Materials Science and Engineering
- Chongqing University
- Chongqing 400044
- China
- National Engineering Research Center for Magnesium Alloys
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39
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40
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Kuznetsova A, Domingues PM, Silva T, Almeida A, Zheludkevich ML, Tedim J, Ferreira MGS, Cunha A. Antimicrobial activity of 2-mercaptobenzothiazole released from environmentally friendly nanostructured layered double hydroxides. J Appl Microbiol 2017; 122:1207-1218. [PMID: 28251734 DOI: 10.1111/jam.13433] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 02/08/2017] [Accepted: 02/23/2017] [Indexed: 11/30/2022]
Abstract
AIMS The objective of this work was to assess the antibacterial effect of 2-mercaptobenzothiazole (MBT), used as model-biocide, immobilized in a layered double hydroxide (LDH) structure, under different conditions of pH and salinity, envisaging possible applications of the system in active antifouling and anticorrosion coatings. METHODS AND RESULTS Biological effects of MBT immobilized in LDH were assessed by monitoring bacterial bioluminescence of cell suspensions of either Allivibrio fischeri or a recombinant strain of Escherichia coli, as a proxy for bacterial activity. Salinity (1, 2 and 3% NaCl) and pH (4, 5, 6 and 7) of the suspension media were experimentally manipulated and biocide release tests were performed in parallel. The release profiles obtained by UV-visible spectrophotometry indicated a fast release of biocide from MBT@LDH, slightly enhanced in 3% NaCl and under alkaline conditions. However, biological effects were more pronounced at 1% NaCl and at neutral pH. CONCLUSIONS The release and toxic effect of MBT immobilized in LDH is dependent on the concentration of solutes in the suspension medium. SIGNIFICANCE AND IMPACT OF THE STUDY The results confirm LDH as a biologically compatible material with potential to be used for biocide delivery.
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Affiliation(s)
- A Kuznetsova
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - P M Domingues
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.,Department of Chemistry, University of Aveiro, Aveiro, Portugal.,CESAM, Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
| | - T Silva
- Department of Chemistry, University of Aveiro, Aveiro, Portugal.,Department of Biology, University of Aveiro, Aveiro, Portugal
| | - A Almeida
- CESAM, Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal.,Department of Biology, University of Aveiro, Aveiro, Portugal
| | - M L Zheludkevich
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal.,Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research GmbH, Institute of Materials Research - MagIC, Geesthacht, Germany
| | - J Tedim
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - M G S Ferreira
- Department of Materials and Ceramic Engineering, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - A Cunha
- CESAM, Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal.,Department of Biology, University of Aveiro, Aveiro, Portugal
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41
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Schmelter D, Langry A, Koenig A, Keil P, Leroux F, Hintze-Bruening H. Inhibition of Steel Corrosion and Alkaline Zinc Oxide Dissolution by Dicarboxylate Bola-Amphiphiles: Self-Assembly Supersedes Host-Guest Conception. Sci Rep 2017; 7:2785. [PMID: 28584232 PMCID: PMC5459810 DOI: 10.1038/s41598-017-02769-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/18/2017] [Indexed: 11/10/2022] Open
Abstract
For many decorative applications like industrial and architectural paints, prevention of metal substrates from corrosion is a primary function of organic coatings. Triggered release of inhibitor species is generally accepted as a remedy for starting corrosion in case of coatings damage. A polyurethane based coating, doped with bola-amphiphiles of varying molecular weight but with a common head group motif that stems from ring-opened alkenyl succinic anhydride, enables passivation of the defect and mitigates cathodic delamination, if applied on cold rolled steel. An antagonistic effect results from the intercalation of the bola-amphiphiles into layered double hydroxide Zn2Al(OH)6 and subsequent incorporation of the hybrid phase into the organic matrix. In particular higher molecular weight bola-amphiphiles get immobilized through alkaline degradation of the layered framework in the basic milieu at the cathode. By means of sediments from colloidal states it is demonstrated that in-situ formed zinc oxide encapsulates the hybrid phase, evidenced by impeded dissolution of the ZnO based shell into caustic soda. While inhibition of steel corrosion results from a Donnan barrier layer, impeded zinc oxide dissolution is rooted in zinc catalyzed bola-amphiphile hydrolysis and layered deposition of the crystalline spacer diol hydrogenated bisphenol-A.
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Affiliation(s)
- Dirk Schmelter
- BASF Coatings GmbH, Glasuritstrasse 1, D-48165, Muenster, Germany
| | - Arthur Langry
- Clermont University Blaise Pascal, Institute of Chemistry of Clermont-Ferrand, UMR-CNRS 6296, BP 80026, F-63171, Aubière, France
| | - Andrej Koenig
- BASF Coatings GmbH, Glasuritstrasse 1, D-48165, Muenster, Germany
| | - Patrick Keil
- BASF Coatings GmbH, Glasuritstrasse 1, D-48165, Muenster, Germany
| | - Fabrice Leroux
- Clermont University Blaise Pascal, Institute of Chemistry of Clermont-Ferrand, UMR-CNRS 6296, BP 80026, F-63171, Aubière, France
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42
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Balaskas AC, Hashimoto T, Curioni M, Thompson GE. Two-shell structured PMAA@CeO 2 nanocontainers loaded with 2-mercaptobenzothiazole for corrosion protection of damaged epoxy coated AA 2024-T3. NANOSCALE 2017; 9:5499-5508. [PMID: 28401243 DOI: 10.1039/c7nr00858a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, novel two-shell structured inhibitor-loaded poly(methacrylic acid)@cerium oxide (PMAA@CeO2) nanocontainers were synthesised and characterized. The purpose of the nanocontainers is to increase the corrosion protection provided by an epoxy coating applied to an aerospace alloy (AA 2024-T3). The (PMAA@CeO2) nanocontainers with diameters of 550 nm were synthesised by a four-step process with the method of distillation precipitation polymerization for the synthesis of the inner PMAA layer, and the sol-gel method for the development of the outer CeO2 layer. The loaded nanocontainers were characterized by scanning and transmission electron microscopies. The corrosion protection properties of the epoxy coated AA 2024-T3 with 2-mercaptobenzothiazole (2-MBT) loaded PMAA@CeO2 nanocontainers were evaluated with and without artificial scribes by electrochemical impedance spectroscopy (EIS). The results indicated that the epoxy coating containing the 2-MBT-loaded nanocontainers provided enhanced protection of the AA 2024-T3 substrate.
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Affiliation(s)
- A C Balaskas
- Corrosion and Protection Centre, School of Materials, The University of Manchester, Manchester, M13 9PL, UK.
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43
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In Situ Formation of Decavanadate-Intercalated Layered Double Hydroxide Films on AA2024 and their Anti-Corrosive Properties when Combined with Hybrid Sol Gel Films. MATERIALS 2017; 10:ma10040426. [PMID: 28772785 PMCID: PMC5506938 DOI: 10.3390/ma10040426] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/08/2017] [Accepted: 04/11/2017] [Indexed: 11/17/2022]
Abstract
A layered double hydroxide (LDH) film was formed in situ on aluminum alloy 2024 through a urea hydrolysis method, and a decavanadate-intercalated LDH (LDH-V) film fabricated through the dip coating method. The microstructural and morphological characteristics were investigated by scanning electron microscopy (SEM). The corrosion-resistant performance was analyzed by electrochemical impedance spectroscopy (EIS), scanning electrochemical microscopy (SECM), and a salt-spray test (SST).The SEM results showed that a complete and defect-free surface was formed on the LDH-VS film. The anticorrosion results revealed that the LDH-VS film had better corrosion-resistant properties than the LDH-S film, especially long-term corrosion resistance. The mechanism of corrosion protection was proposed to consist of the self-healing effect of the decavanadate intercalation and the shielding effect of the sol-gel film.
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44
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Mata D, Serdechnova M, Mohedano M, Mendis CL, Lamaka SV, Tedim J, Hack T, Nixon S, Zheludkevich ML. Hierarchically organized Li–Al-LDH nano-flakes: a low-temperature approach to seal porous anodic oxide on aluminum alloys. RSC Adv 2017. [DOI: 10.1039/c7ra05593e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Li-LDH sealing is accounted for being highly competitive to standard hot-water sealing as referred to reduced treatment temperature and higher corrosion protection efficiency.
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Affiliation(s)
- D. Mata
- Smallmatek – Small Materials and Technologies
- 3810-075 Aveiro
- Portugal
| | - M. Serdechnova
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
| | - M. Mohedano
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
- Departamento de Ciência de Materiales
| | - C. L. Mendis
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
- Brunel – Centre for Advanced Solidification Technology
| | - S. V. Lamaka
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
| | - J. Tedim
- CICECO
- Dep. Materials and Ceramic Engineering
- University of Aveiro
- Aveiro
- Portugal
| | - T. Hack
- Airbus Group Innovations
- 81663 Munich
- Germany
| | - S. Nixon
- Airbus Group Innovations
- 81663 Munich
- Germany
| | - M. L. Zheludkevich
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
- Faculty of Engineering
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45
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Tedim J, Bastos A, Kallip S, Zheludkevich M, Ferreira M. Corrosion protection of AA2024-T3 by LDH conversion films. Analysis of SVET results. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.05.134] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Galvão TL, Neves CS, Caetano AP, Maia F, Mata D, Malheiro E, Ferreira MJ, Bastos AC, Salak AN, Gomes JR, Tedim J, Ferreira MG. Control of crystallite and particle size in the synthesis of layered double hydroxides: Macromolecular insights and a complementary modeling tool. J Colloid Interface Sci 2016; 468:86-94. [DOI: 10.1016/j.jcis.2016.01.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/19/2016] [Accepted: 01/19/2016] [Indexed: 01/23/2023]
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47
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Kuznetsov B, Serdechnova M, Tedim J, Starykevich M, Kallip S, Oliveira MP, Hack T, Nixon S, Ferreira MGS, Zheludkevich ML. Sealing of tartaric sulfuric (TSA) anodized AA2024 with nanostructured LDH layers. RSC Adv 2016. [DOI: 10.1039/c5ra27286f] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Zn–Al LDH-NO3 was grown on TSA anodized surface of AA2024 aluminum alloy LDH-VOx was obtained from LDH-NO3via anionic exchange reaction The LDH-VOx layer confers remarkable active corrosion protection.
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Affiliation(s)
- B. Kuznetsov
- Belarusian State University
- Faculty of Chemistry
- Minsk
- Belarus
| | - M. Serdechnova
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
| | - J. Tedim
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - M. Starykevich
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - S. Kallip
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - M. P. Oliveira
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - T. Hack
- Airbus Group Innovations
- 81663 Munich
- Germany
| | - S. Nixon
- Airbus Group Innovations
- 81663 Munich
- Germany
| | - M. G. S. Ferreira
- Department of Materials and Ceramic Engineering
- CICECO – Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - M. L. Zheludkevich
- Institute of Materials Research
- Helmholtz-Zentrum Geesthacht
- 21502 Geesthacht
- Germany
- Department of Materials and Ceramic Engineering
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48
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Siva T, Mayavan S, Sreejakumari SS, Sathiyanarayanan S. Mesoporous silica based reservoir for the active protection of mild steel in an aggressive chloride ion environment. RSC Adv 2015. [DOI: 10.1039/c5ra04670j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Spherical mesoporous silica (m-SiO2) with well-ordered pores was synthesized by a modified Stöber method using CTAB micelles.
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Affiliation(s)
- T. Siva
- Corrosion and Materials Protection Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630006
- India
| | - Sundar Mayavan
- Corrosion and Materials Protection Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630006
- India
| | - S. S. Sreejakumari
- Corrosion and Materials Protection Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630006
- India
| | - S. Sathiyanarayanan
- Corrosion and Materials Protection Division
- CSIR-Central Electrochemical Research Institute
- Karaikudi-630006
- India
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49
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Carneiro J, Caetano AF, Kuznetsova A, Maia F, Salak AN, Tedim J, Scharnagl N, Zheludkevich ML, Ferreira MGS. Polyelectrolyte-modified layered double hydroxide nanocontainers as vehicles for combined inhibitors. RSC Adv 2015. [DOI: 10.1039/c5ra03741g] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The dual release of Ce3+ and 2-mercaptobenzothiazole from layered double hydroxides modified by the layer-by-layer leads to an improvement of corrosion protection when compared to unmodified layered double hydroxides.
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Affiliation(s)
- Jorge Carneiro
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Ana F. Caetano
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Alena Kuznetsova
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Frederico Maia
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Andrei N. Salak
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - João Tedim
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Nico Scharnagl
- Helmholtz-Zentrum Geesthacht Centre for Materials and Coastal Research GmbH Institute of Materials Research – MagIC
- 21502 Geesthacht
- Germany
| | - Mikhail L. Zheludkevich
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
| | - Mário G. S. Ferreira
- Department of Materials and Ceramic Engineering
- CICECO-Aveiro Institute of Materials
- University of Aveiro
- 3810-193 Aveiro
- Portugal
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50
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Stimpfling T, Leroux F, Hintze-Bruening H. Organo-modified layered double hydroxide in coating formulation to protect AA2024 from corrosion. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.01.042] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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