Effect of divalent metal ions on durability and anticorrosion performance of layered double hydroxides on anodized 2A12 aluminum alloy

Liu, Jianhua; Shi, Haobo; Yu, Mei; Du, Rongtao; Rong, Gang; Li, Songmei

doi:10.1016/j.surfcoat.2019.05.066

Cited by 29 publications

(12 citation statements)

References 54 publications

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“…They have received extensive attention due to the characteristic of economy, convenient synthesis, low toxicity, and good stability. The controllability of layer composition and the exchangeability of interlayer anions make it an ideal carrier for loaded nanocatalysts [31] , [32] . Zhao [33] prepared Ru/LDHs using MgAl-LDHs with different Mg-Al ratios as carriers, ruthenium chloride as ruthenium source and sodium borohydride as reducing agent.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic-assisted preparation of ultrafine Pd nanocatalysts loaded on Cl−-intercalated MgAl layered double hydroxides for the catalytic dehydrogenation of dodecahydro-N-ethylcarbazole

Liu

Bai

et al. 2022

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

Ultrasonic-assisted preparation of ultrafine Pd nanocatalysts loaded on Cl−-intercalated MgAl layered double hydroxides for the catalytic dehydrogenation of dodecahydro-N-ethylcarbazole

Liu

Bai

et al. 2022

Ultrasonics Sonochemistry

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“…The capacitive arc radius of the LDH-V/SG-Ce is the largest, meaning it has the best corrosion resistance. The higher the impedance modulus in the low-frequency region, the better the corrosion resistance of the coating [ 19 ]. The highest impedance modulus at a low frequency of LDH-V/SG-Ce, which is nearly an order of magnitude higher than the LDH film, also indicates this point.…”

Section: Resultsmentioning

confidence: 99%

“…Layered double hydroxide (LDH) can be used as a smart protective film for storing corrosion inhibitors due to its unique 3D nanosheet array layered structure and interlayer anion exchange capacity [ 18 , 19 , 20 ]. Using in situ growth, LDH film can form a system composed of interlayer anions and metal cations with good adhesion on the metal surface [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Duplex Coating Combing Vanadate-Intercalated Layered Double Hydroxide and Ce-Doped Sol–Gel Layers on Aluminum Alloy for Active Corrosion Protection

et al. 2023

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In this study, a duplex coating system (LDH-V/SG-Ce) of vanadate-intercalated layered double hydroxide (LDH) and Ce-doped sol–gel (SG) layers was developed for the purpose of active corrosion protection of the aluminum alloy AA2024.ZnAl-LDH film was grown in situ on the surface of an aluminum alloy using a hydrothermal method and intercalated with V2O74− anions as corrosion inhibitors, and sealed with a Ce (III)-doped silane coating using a sol–gel technique. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analyses were used to analyze the microstructure, surface functional groups and structure of the LDH-V/SG-Ce film. The uniform and compact silane layer was covered both in the pores and on top of the LDH film. The results of glow discharge optical emission spectroscopy (GDOES) indicated that V2O74− and Ce (III) ions were loaded in the LDH layer and silane film, respectively. The potentiodynamic polarization results showed that the corrosion current density of the bilayer system in the presence of corrosion inhibitors was reduced to 1.92 × 10−8 A/cm2. Electrochemical impedance spectroscopy (EIS) results showed that the LDH-V/SG-Ce duplex coating could provide effective protection for the aluminum alloy after being exposed to a corrosive solution for 14 days.

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“…The use of metallic or metal oxide nanoparticles has been reported in several studies, however, the nanocomposite formulation with different d‐orbital electrons (fully and half‐filled) using CO has not been studied. The variation in d‐orbital electrons is known to influence the coordination, linkages, crystal structure, and crosslinking strength, which would influence other associated properties of the polymeric materials such as thermal, chemical, and corrosion resistance properties [30–32] …”

Section: Resultsmentioning

confidence: 99%

Mn(II)‐ and Zn(II)‐ Based Nanocomposites Metallopolymer for Corrosion Protective Coatings

et al. 2023

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The transition from conventional polymeric material to green and sustainable, environment-friendly biomaterials has been actively explored. The objective of the work involves the formulation of an oleo-polymer (corn oil, CO), hybridization with metallic ions (Zn 2 + and Mn 2 + ) through coordination bonding, study of the impact of fully/half-filled d-orbitals, and development of eco-friendly polymeric coating material. The formation of the nanoclusters (10-20 nm) within the polymeric matrix was estimated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Fourier transform infrared (FTIR) analysis supports the predicted chemical mech-anism involved during poly-urethanation of the metal-containing CO fatty amides. Interestingly, opposite to our expectations the metal ions with fully filled d-orbital (Zn 2 + ) showed relatively (Mn 2 + ) better thermal and anti-corrosion properties. The good adhesive strength of metallopolymers and the impact of the dorbital electrons on the corrosion protective performance, which was by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). These nanocomposite coatings could be a suitable alternatives to petrochemicalbased polymers.

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Effect of divalent metal ions on durability and anticorrosion performance of layered double hydroxides on anodized 2A12 aluminum alloy

Cited by 29 publications

References 54 publications

Ultrasonic-assisted preparation of ultrafine Pd nanocatalysts loaded on Cl−-intercalated MgAl layered double hydroxides for the catalytic dehydrogenation of dodecahydro-N-ethylcarbazole

Ultrasonic-assisted preparation of ultrafine Pd nanocatalysts loaded on Cl−-intercalated MgAl layered double hydroxides for the catalytic dehydrogenation of dodecahydro-N-ethylcarbazole

Duplex Coating Combing Vanadate-Intercalated Layered Double Hydroxide and Ce-Doped Sol–Gel Layers on Aluminum Alloy for Active Corrosion Protection

Mn(II)‐ and Zn(II)‐ Based Nanocomposites Metallopolymer for Corrosion Protective Coatings

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