MgAl-LDH/graphene protective film: Insight into LDH-graphene interaction

Iqbal, Muhammad Ahsan; Secchi, M; Iqbal, Muhammad Adeel; Montagna, M.; Zanella, Caterina; Fedel, Michele

doi:10.1016/j.surfcoat.2020.126253

Cited by 26 publications

(8 citation statements)

References 38 publications

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“…For instance, according to Ahsan Iqbal et al [28], who developed a Ca-Al-LDH coating on the 6082 alloy at treatment times between 12 and 72 h, Ca-containing phases such as Ca(OH)2 (~17.5º) and tricalcium aluminate (~27.5º) were detected after long treatment times. This double layer morphology is in agreement with recent results on a Mg-Al-LDH coating on 6082 alloy [43] and Zn-Al-LDH on 2024 alloy [44]. Note that the coatings appear to have suffered knife damage to some extent, hence the relatively loose morphology.…”

Section: Xrd Patterns Of Thesupporting

confidence: 91%

Permanganate loaded Ca-Al-LDH coating for active corrosion protection of 2024-T3 alloy

et al. 2022

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Section: Xrd Patterns Of Thesupporting

confidence: 91%

Permanganate loaded Ca-Al-LDH coating for active corrosion protection of 2024-T3 alloy

et al. 2022

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“…101. These characteristics all indicate that FeS was successfully precipitated in the layer of LDH [36][37][38]. Transmittance (%) The LDH3 and FeS/LDH3 used in this study were characterized by SEM.…”

Section: Characterizationsmentioning

confidence: 82%

Adsorption and Reduction of Aqueous Cr by FeS-Modified Fe-Al Layered Double Hydroxide

Zhang

Wan

2021

Sustainability

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To remedy the widespread chromium (Cr) pollution in the environment, this study mainly used the ultrasonic-assisted co-precipitation and precipitation methods to prepare FeS-modified Fe-Al-layered double hydroxide (FeS/LDH) composite material. The experimental results showed that FeS/LDH has higher removal efficiency of Cr in aqueous solution and stronger anti-interference ability than unmodified LDH. Under the same reaction conditions, the removal efficiency of total Cr(Cr(T)) using LDH was 34.85%, and the removal efficiency of Cr(VI) was 46.76%. For FeS/LDH, the removal efficiency of Cr(T) and Cr(VI) reached 99.57% and 100%, respectively. The restoration of Cr(T) and Cr(VI) by FeS/LDH satisfied the Langmuir adsorption isotherm. The maximum adsorption capacity of Cr(T) and Cr(VI) achieved 102.9 mg/g and 147.7 mg/g. The efficient removal of Cr by FeS/LDH was mainly based on the triple synergistic effect of anion exchange between Cr(VI) and interlayer anions, redox of Cr(VI) with Fe2+ and S2−, and co-precipitation of Fe3+ and Cr3+.

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“…Various attempts have been made to suppress the diffusion pathway by adding additional components. One of the more successful additives is graphene, which has a sealing effect due to its impermeable nature [136][137][138]. In addition, the negative charge on graphene oxide (GO), combined with the positively charged LDHs, facilitates the in situ growth of LDHs on the GO sheets, creating a network that greatly reduces permeability and consequently enhances corrosion resistance [84].…”

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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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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MgAl-LDH/graphene protective film: Insight into LDH-graphene interaction

Cited by 26 publications

References 38 publications

Permanganate loaded Ca-Al-LDH coating for active corrosion protection of 2024-T3 alloy

Permanganate loaded Ca-Al-LDH coating for active corrosion protection of 2024-T3 alloy

Adsorption and Reduction of Aqueous Cr by FeS-Modified Fe-Al Layered Double Hydroxide

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

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