Co-deposition behavior of alumina nanoparticles and properties of Ni-Al<sub>2</sub>
O<sub>3</sub>
 nanocomposite coatings

Sadeghi, Amir; Sieber, Maximilian; Scharf, Ingolf; Lampke, Thomas

doi:10.1002/sia.5771

Cited by 4 publications

(2 citation statements)

References 49 publications

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“…This is the case of alumina (Al2O3): a ceramic material used in several applications because of its excellent properties, such as chemical stability, high degree of hardness and low cost. Some coatings are prepared using alumina which directly increases the hardness; and some electrochemical processes [26][27][28][29][30] also use it to increase this property, with successful results.…”

Section: Introductionmentioning

confidence: 99%

Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation

Rius-Ayra

Castellote-Alvarez

Escobar

et al. 2019

Surface and Coatings Technology

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Here, we report a straightforward and rapid process using fatty acids to produce a stable superhydrophobic hybrid composite coating on aluminium substrate which is highly resistant to wear under environmental conditions. Furthermore, this novel superhydrophobic metal surface is highly efficient at separating of water/oil systems. The single-step process we adopt involves electrochemical deposition of ZnCl2, α-Al2O3 and lauric acid (C11H23COOH) onto commercial pure aluminium substrate. The resultant static contact angle (170°) and sliding angle (1°) are those of a superhydrophobic coating with self-cleaning properties; while chemical analysis shows that this is the result of generation of zinc laurate (Zn(C11H20COO)2) as a major compound that increases the superhydrophobic character of the coating, generating a flower-like structure 70 nm thick. Different wear tests show the coating is resistant to severe conditions, confirming its real potential against weathering, including sand and 2 water erosion. Finally, a water/oil separation test determined 99% separation efficiency in hexane and ether petroleum systems, in a laboratory-made storage tank.

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Section: Introductionmentioning

confidence: 99%

Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation

Rius-Ayra

Castellote-Alvarez

Escobar

et al. 2019

Surface and Coatings Technology

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“…] − ions that are strongly adsorbed to the Ni NPs, which would be adsorbed on the substrate. 15,23 The cathodic peak linked to the reduction of these type of NPs-adsorbed Al Cl…”

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confidence: 99%

Electrodeposition of Reactive Aluminum-Nickel Coatings in an AlCl₃:[EMIm]Cl Ionic Liquid Containing Nickel Nanoparticles

del Carmen Mejia,

Graske,

Winter

et al. 2023

J. Electrochem. Soc.

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The electrodeposition of aluminum-nickel coatings was performed by pulsed direct current in the ionic liquid (IL) 1.5:1 AlCl3:EMIm]Cl containing nickel nanoparticles (Ni NPs), for reactive dispersion coating application. Several electrochemical and characterization techniques were used to shed more light on the mechanism of Ni particle incorporation into the Al matrix. Thus, particle incorporation at the early stage of the deposition would mainly take place via particle adsorption at the substrate. However, as the thickness of the coating increases, it seems that the main mechanism for particle incorporation is via the reduction of [Al2Cl7]- ions adsorbed at the particles surface. Although a considerable high incorporation of Ni NPs has been achieved from the IL containing the highest concentration of Ni NPs (i.e. ∽ 33 wt.% from a 20 g/L of Ni NPs bath), a high concentration of NPs in the IL resulted having a negative effect in terms of quality of the coatings, due to solidification of the electrolyte in a poorly conductive compound. Moreover, almost equivalent amounts of Ni and Al (Ni ∽ 45 wt.% and Al ∽ 44 wt.%) have been detected in some areas of the coatings. Such a layer composition would be desired for the targeted application.

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Growth of a superhydrophobic coating on an aluminium substrate with strong adhesive properties and showing efficient oil/water separation

Rius-Ayra

Llorca-Isern

2020

Thin Solid Films

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Co-deposition behavior of alumina nanoparticles and properties of Ni-Al₂ O₃ nanocomposite coatings

Cited by 4 publications

References 49 publications

Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation

Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation

Electrodeposition of Reactive Aluminum-Nickel Coatings in an AlCl₃:[EMIm]Cl Ionic Liquid Containing Nickel Nanoparticles

Growth of a superhydrophobic coating on an aluminium substrate with strong adhesive properties and showing efficient oil/water separation

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Co-deposition behavior of alumina nanoparticles and properties of Ni-Al2 O3 nanocomposite coatings

Cited by 4 publications

References 49 publications

Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation

Robust and superhydrophobic coating highly resistant to wear and efficient in water/oil separation

Electrodeposition of Reactive Aluminum-Nickel Coatings in an AlCl3:[EMIm]Cl Ionic Liquid Containing Nickel Nanoparticles

Growth of a superhydrophobic coating on an aluminium substrate with strong adhesive properties and showing efficient oil/water separation

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Product

Resources

About

Co-deposition behavior of alumina nanoparticles and properties of Ni-Al₂ O₃ nanocomposite coatings

Electrodeposition of Reactive Aluminum-Nickel Coatings in an AlCl₃:[EMIm]Cl Ionic Liquid Containing Nickel Nanoparticles