Aluminium electrodeposition under novel conditions from AlCl3–urea deep eutectic solvent at room temperature

Cvetković, Vesna S.; Vukićević, Nataša M.; Jovićević, Niko; Stevanović, Jasmina S.; Jovićević, Jovan N.

doi:10.1016/s1003-6326(20)65257-8

Cited by 35 publications

(27 citation statements)

References 32 publications

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“…Figure 2 displays the voltammetry of the EMIC-AlCl 3 ionic liquid affected by the additives. It could be obviously seen that the additives had a symbolized impact on the voltametric responsive, suggesting the process of nucleation and growth affected by the additives [17,36]. With addition of 6 mM of 2-cyanopyridine, 3-cyanopyridine, and 4cyanopyridine in the bath, the onset deposition potential of Al alloy underwent a negative migration, which was −70 mV, −90 mV, and −100 mV vs. Al, respectively.…”

Section: Voltammogram Measurementsmentioning

confidence: 99%

“…As we all know, the microstructure of the metal coatings has a remarkable impact on its properties, such as brightness and corrosion resistance. Numerous studies have been published to modulate the microstructure of the metal coatings to improve their performance by adding appropriate alloying elements [13][14][15], changing the temperature, and optimizing the current density [16][17][18]. Although Al coatings can be electroplated from the neat ionic liquids, the surface morphology of the electrodeposit is usually rough and 2 of 14 gray.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Additives Containing Cyanopyridine on Electrodeposition of Bright Al Coatings from AlCl3-EMIC Ionic Liquids

Zhang

Peng

et al. 2021

Coatings

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The Al coatings were electrodeposited on the Cu substrate from AlCl3-EMIC ionic liquid (AlCl3:EMIC = 2:1 molar ratio) containing three cyanopyridine additives with different positions of the substituent group on the pyridine ring, which were 2-cyanopyridine, 3-cyanopyridine, and 4-cyanopyridine. The effects of cyanopyridine additives on the deposition potential, morphology, brightness, and corrosion properties of Al coatings were investigated. It was considered that the deposition potential of Al shifted to more negative overpotentials, the quality of Al coatings was promoted, and the corrosion property was improved by the cyanopyridine additives to a varying degree. Especially in the presence of 4-cyanopyridine, the flattest mirror bright Al coating was obtained, which had the smallest homogeneous nanocrystal grain size and strongest Al (200) crystallographic orientation. The average roughness Ra value was as low as 31 nm compared to that in the absence of cyanopyridine additives, which was 417 nm. Furthermore, the corrosion current density of the bright Al coating was three orders of magnitude lower than the rough Al coating, which resulted from the dense nanocrystal structure.

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Section: Voltammogram Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Additives Containing Cyanopyridine on Electrodeposition of Bright Al Coatings from AlCl3-EMIC Ionic Liquids

Zhang

Peng

et al. 2021

Coatings

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“…Time has a direct effect on deposition thickness (Sadiku-Agboola et al, 2011). Cvetković et al, (2020) conducted electrodeposition of aluminium onto glassy carbon and aluminium substrates and found that the shape and size of Al grains deposited depended on the time of deposition and varied in size from nanometers to micrometers and in shape from regular crystal forms to needlelike and flake-like structures. Study of optimization of process parameter for electrodeposition of Nickel Chromium (Ni-Cr) for coating variation shows that plating time have more effect on thickness variations (Khedekar et al, 2016).…”

Section: Deposition Timementioning

confidence: 99%

Parameters Affecting Qualitative and Efficient Electrodeposition of Metals in an Electrolytic Cell: a Review

Arowolo

Adekunle²,

Olusegun³

2020

FJS

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Electroplating has been a useful practice in the laboratory and industry for a long time. Its usefulness is more profound in oil industries for corrosion prevention and control, automobile industry, jewelries and decoration. Today, the scope of electroplating has expanded considerably with many players exploring its advantages and optimizing its parameters for enhanced productivity. The paper presented a review of electroplating with the aim of making concise information available on its process parameters and its process optimization. The review was compiled from several major work which pertained to parameters affecting qualitative and efficient electrodeposition of metals in an electrolytic cell. Results gathered included actual effect of identified parameters and interplay of parameter on quality of electrodeposition and microstructure of deposited metal. Important recommendations were made to further enhance the practice of electrodeposition.

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“…Another major benefit of electropolishing over surface buffing alternatives is the practical application of reducing surface roughness and impurities to nearly negligible quantities on polished surfaces [6,7]. Currently, large quantities of surface-polished products are being treated with hazardous chemical solutions [8][9][10]. Phosphoric and sulfuric acid mixtures account for a plurality of these acid electropolishing treatments in pure metals and alloys [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…High-purity metal samples of aluminum were tested to determine the effectiveness of an industry standard acid solution of 1 M phosphoric acid and an ionic liquid medium composed of ethylene glycol and choline chloride mixed in a 2:1 molar ratio. Previous studies demonstrated the effectiveness of various conformities of this ionic liquid with stainless steel and other alloys [1,5,10]. It was the aim of this investigation to optimize the electrochemistry tests to produce a superior polish of this ionic liquid and to weigh the benefits of this ionic liquid against an industry standard 1 M phosphoric acid electropolishing treatment.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Electropolishing of Aluminum in a Deep Eutectic Medium and Acidic Electrolyte

Abdel‐Fattah

Loftis

2020

Molecules

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Research advances in electropolishing, with respect to the field of metalworking, have afforded significant improvements in the surface roughness and conductivity properties of aluminum polished surfaces in ways that machine polishing and simple chemical polishing cannot. The effects of a deep eutectic medium as an acid-free electrolyte were tested to determine the potential energy thresholds during electropolishing treatments based upon temperature, experiment duration, current, and voltage. Using voltammetry and chronoamperometry tests during electropolishing to supplement representative recordings via atomic force microscopy (AFM), surface morphology comparisons were performed regarding the electropolishing efficiency of phosphoric acid and acid-free ionic liquid treatments for aluminum. This eco-friendly solution produced polished surfaces superior to those surfaces treated with industry standard acid electrochemistry treatments of 1 M phosphoric acid. The roughness average of the as-received sample became 6.11 times smoother, improving from 159 nm to 26 nm when electropolished with the deep eutectic solvent. This result was accompanied by a mass loss of 0.039 g and a 7.2 µm change in step height along the edge of the electropolishing interface, whereas the acid treatment resulted in a slight improvement in surface roughness, becoming 1.63 times smoother with an average post-electropolishing roughness of 97.7 nm, yielding a mass loss of 0.0458 g and a step height of 8.1 µm.

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Aluminium electrodeposition under novel conditions from AlCl3–urea deep eutectic solvent at room temperature

Cited by 35 publications

References 32 publications

Effects of Additives Containing Cyanopyridine on Electrodeposition of Bright Al Coatings from AlCl3-EMIC Ionic Liquids

Effects of Additives Containing Cyanopyridine on Electrodeposition of Bright Al Coatings from AlCl3-EMIC Ionic Liquids

Parameters Affecting Qualitative and Efficient Electrodeposition of Metals in an Electrolytic Cell: a Review

Comparison of Electropolishing of Aluminum in a Deep Eutectic Medium and Acidic Electrolyte

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