Anodic dissolution of aluminum in AlCl3-[BzMIM]Cl ionic liquid

Wang, Shuxian; Xu, Cunying; Ye, Hua; Ren, Xiangyu; Lu, Jingling; Li, Jianru; Xiao, Chen; Xiang, Qinqin; Li, Yan

doi:10.1016/j.jelechem.2021.115715

Cited by 9 publications

(2 citation statements)

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“…Because of their higher mechanical and physicochemical characteristics, metals including steel, copper, and aluminum are frequently utilized in industrial applications and in daily activities [1][2][3][4]. However, it is easily corroded in the environment as chemical or electrochemical reactions occur on the metal's surface to turn it into an oxidized or ionic state [5,6]. Stress corrosion cracking and corrosion fatigue will occur in the metal material as a result, which will significantly reduce its mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Electroplating of hydrophobic/hydrophilic ZnO nano-structural coatings on metallic substrates

Belamri,

Boumaza,

Boudjadar

2023

Phys. Scr.

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In the present work, ZnO thin film is shown as a coating on an aluminum substrate. In order to synthesize ZnO thin films, electroplated Zn thin layers were thermally oxidized in atmospheric air for different times (1h–4h) at a fixed annealing temperature of 500 °C. The samples were characterized by scanning electron microscopy (FEG-SEM) equipped with energy dispersive x-ray analysis (EDX), a profilometer, x-ray diffraction (XRD), and Raman spectroscopy. The wettability properties of the synthesized films were evaluated by measuring the contact angle between the surface of the films and a deposited water drop (WCA). The FEG-SEM images show that the surface morphologies change throughout treatment time. The sample treated for 2 h shows flower-like microstructures with an average size of 100 μm, which are covered with spherical ZnO nanostructures with a size less than 50 nm. Measured surface roughness ranges from 5.800 μm to 6.560 μm. Layers thicknesses vary between 31 and 38 μm. Structural characterization by XRD demonstrates that the synthesized ZnO thin films were polycrystalline and have Wurtzite hexagonal structures, grown manly along the (101) plan. The estimated crystallite sizes are in the nanometric scale and reach their maximum value for the sample treated for 2 h. This annealing time corresponds to the low dislocation density (δ) and low lattice strain (ε), indicating fewer defects. The Raman analysis shows five normal vibrational modes, which correspond to the ZnO Wurtzite structure. It was possible to obtain both hydrophobic and hydrophilic surfaces; the shape and surface roughness of the as-prepared films had an impact on the results. The largest measured contact angle, of 97°, was obtained after annealing for 2 h at 500 °C.

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Section: Introductionmentioning

confidence: 99%

Electroplating of hydrophobic/hydrophilic ZnO nano-structural coatings on metallic substrates

Belamri,

Boumaza,

Boudjadar

2023

Phys. Scr.

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“…However, an increase in the concentration of Al 2 Cl 7 À and a simultaneous decrease in the concentration of AlCl 4 À result in the passivation of the aluminum electrode during its anodic polarization. 42,43 The abovementioned features of electrode processes at the interface between aluminum and chloroaluminate ILs directly affect the performance of the power source, in particular, the limiting current densities at which the charge/discharge of the battery can take place. Therefore, research into the electrochemical behavior of aluminum in AlCl 3 -Et 3 NHCl with various aluminum chloride contents is of great importance.…”

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confidence: 99%