Cast iron corrosion protection with chemically modified Mg Al layered double hydroxides synthesized using a novel approach

Vieira, D.; Sokol, Denis; Smalenskaite, A.; Kareiva, Aivaras; Ferreira, M.G.S.; Vieira, J.M.; Salak, Andrei N.

doi:10.1016/j.surfcoat.2019.07.028

Cited by 16 publications

(8 citation statements)

References 16 publications

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“…Accordingly, the co-precipitation method is more widely employed. Although LDHs are more frequently deposited onto Al-and Mg-based substrates, they have been employed in the corrosion protection of copper and its alloys [89][90][91] and iron and steels [92][93][94]. In a recent report, Nikhil and Prakash [89] used the co-precipitation method to initially form the LDH, which was then placed with the copper substrate In co-precipitation, a wide range of interlayer anions, including various corrosion inhibitors, can be employed, and the synthesis is suitable for upscaling.…”

Section: Layered Double Hydroxidesmentioning

confidence: 99%

“…Although LDHs are more frequently deposited onto Al-and Mg-based substrates, they have been employed in the corrosion protection of copper and its alloys [89][90][91] and iron and steels [92][93][94]. In a recent report, Nikhil and Prakash [89] used the co-precipitation method to initially form the LDH, which was then placed with the copper substrate in an autoclave and subjected to the hydrothermal approach.…”

Section: Layered Double Hydroxidesmentioning

confidence: 99%

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Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys

et al. 2022

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Metals and alloys are essential in modern society, and are used in our daily activities. However, they are prone to corrosion, with the conversion of the metal/alloy to its more thermodynamically-favored oxide/hydroxide phase. These undesirable corrosion reactions can lead to the failure of metallic components. Consequently, corrosion-protective technologies are now more important than ever, as it is essential to reduce the waste of valuable resources. In this review, we consider the role of emerging 2D materials and layered materials in the development of a corrosion protection strategy. In particular, we focus on the materials beyond graphene, and consider the role of transition metal dichalcogenides, such as MoS2, MXenes, layered double hydroxides, hexagonal boron nitride and graphitic carbon nitride in the formulation of effective and protective films and coatings. Following a short introduction to the synthesis and exfoliation of the layered materials, their role in corrosion protection is described and discussed. Finally, we discuss the future applications of these 2D materials in corrosion protection.

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Section: Layered Double Hydroxidesmentioning

confidence: 99%

Section: Layered Double Hydroxidesmentioning

confidence: 99%

Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys

et al. 2022

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“…A similar approach was applied to obtain a MgAl, Ce LDH-PO 4 . The resulting LDH material was studied as an anti-corrosion nanomaterial for corrosion inhibition of cast iron (Vieira et al, 2019). In another study, the authors applied the sonication treatment during the crystallization step for 5 min to obtain a MgAl, Ce LDH-NO 3 by co-precipitation.…”

Section: Sonication Route For the Synthesis Of Ldhmentioning

confidence: 99%

Layered double hydroxides for corrosion-related applications—Main developments from 20 years of research at CICECO

et al. 2022

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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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“…and organic anions (terephthalate, acrylate, lactate, etc.). LDHs are widely used as adsorbents, catalyst support precursors, anion exchangers, acid residue scavengers, flame retardants, osmosis membranes, sensors and others [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ]. After calcination at temperatures from 300 to 600 °C, LDHs are converted to mixed-metal oxides (MMOs) with a high specific surface area and basic properties.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Structural and Luminescent Properties of Sol-Gel-Derived Cr‑Substituted Mg3Al1−xCrx Layered Double Hydroxides

Valeikiene

Grigoravičiūtė-Puronienė

Katelnikovas

et al. 2021

Molecules

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In the present work, Cr-substituted Mg3Al1−xCrx layered double hydroxides (LDHs) were synthesised through the phase conversion of sol-gel-derived mixed-metal oxides in an aqueous medium. The chromium substitution level in the range of 1 to 25 mol% was investigated. It was demonstrated that all synthesised specimens were single-phase LDHs. The results of elemental analysis confirmed that the suggested synthetic sol-gel chemistry approach is suitable for the preparation of LDHs with a highly controllable chemical composition. The surface microstructure of sol-gel-derived Mg3Al1−xCrx LDHs does not depend on the chromium substitution level. The formation of plate-like agglomerated particles, which consist of hexagonally shaped nanocrystallites varying in size from approximately 200 to 300 nm, was observed. Optical properties of the synthesised Mg3Al1−xCrx LDHs were investigated by means of photoluminescence. All Cr-containing powders exhibited characteristic emission in the red region of the visible spectrum. The strongest emission was observed for the sample doped with 5 mol% Cr3+ ions. However, the emission intensity of samples doped with 1–10 mol% Cr3+ ions was relatively similar. A further increase in the Cr3+ ion concentration to 25 mol% resulted in severe concentration quenching.

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Cast iron corrosion protection with chemically modified Mg Al layered double hydroxides synthesized using a novel approach

Abstract: et al., Cast iron corrosion protection with chemically modified Mg-Al layered double hydroxides synthesized using a novel approach, Surface & Coatings Technology,

Cited by 16 publications

References 16 publications

Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys

Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys

Layered double hydroxides for corrosion-related applications—Main developments from 20 years of research at CICECO

Investigation of Structural and Luminescent Properties of Sol-Gel-Derived Cr‑Substituted Mg3Al1−xCrx Layered Double Hydroxides

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