Electrodeposition and corrosion characterisation of micro- and nano-crystalline aluminium from AlCl3/1-ethyl-3-methylimidazolium chloride ionic liquid

Bakkar, Ashraf; Neubert, Volkmar

doi:10.1016/j.electacta.2013.03.198

Cited by 74 publications

(43 citation statements)

References 41 publications

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“…Figure 6d shows CVs of amixture with x(AlBr 3 ) = 0.60 at various scan rates between 5a nd 100 mV s À1 .T he coulombic current efficiency increases with increasing scan rate (see also Figure S23 and S24), which was also reported by Bakkar und Neubert for the system AlCl 3 /[C 2 MIm]Cl on aP telectrode. [14] Aluminum was electrodeposited potentiostaticallyf rom the IL with x(AlBr 3 ) = 0.67 at ap otentialo fÀ0.4 Vf or 17 ho naCu substrate. The deposited aluminum was investigated by scanning electron microscopy (SEM) coupled with an energy dispersive X-ray analyzer (EDX).…”

Section: Cyclic Voltammetry and Potentiostatic Electrodeposition Of Almentioning

confidence: 99%

“…Depending on the mole fraction x (AlCl 3 )= n (AlCl 3 )/{ n ([cat]Cl)+ n (AlCl 3 )}, the ILs can be Lewis basic { x (AlCl 3 ) <0.5}, Lewis neutral { x (AlCl 3 )=0.5} or Lewis acidic { x (AlCl 3 ) >0.5}. It is well known, that Al can be deposited electrochemically at room temperature from Lewis acidic chloroaluminate ILs . The accepted stoichiometry for metal deposition is given by equation :

true 4 {[Al}_{2} {Cl}_{7}]^{-} + {3 e}^{-} \to {Al}^{0} + {7 [AlCl}_{4}]^{-}

…”

Section: Introductionmentioning

confidence: 99%

“…It is well known,t hat Al can be deposited electrochemically at room temperature from Lewis acidic chloroaluminate ILs. [12][13][14][15] The accepted stoichiometry for metal deposition is given by equation (2): [16] 4½Al 2 Cl 7 À þ 3e À ! Al 0 þ 7½AlCl 4 À…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and Characterization of Bromoaluminate Ionic Liquids

Hog

Schneider

Krossing

2017

Chemistry A European J

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Twelve bromoaluminate based ionic liquids (ILs) were synthesized and characterized by IR, Raman, and NMR spectroscopy, as well as single crystal X-ray diffraction in part. Their principal physicochemical properties including melting points, conductivities, viscosities, and densities were determined and compared with related ILs. The influence of the cation and anion on the physicochemical properties are discussed. The [AlBr ] based salts are-with one exception-solid at room temperature, while the compounds based on the anion [Al Br ] are liquid at room temperature. The liquid salts show low viscosities (49-139 mPa s), medium to high conductivities (0.76-3.53 mS cm ) and high densities (1.82-2.04 g cm ) at 28 °C. Furthermore, we showed aluminum electrodeposition from Lewis acidic ILs based on AlBr and 1-hexyl-3-methylimidazolium bromide and investigated the stability range of various formulations.

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Section: Cyclic Voltammetry and Potentiostatic Electrodeposition Of Almentioning

confidence: 99%

true 4 {[Al}_{2} {Cl}_{7}]^{-} + {3 e}^{-} \to {Al}^{0} + {7 [AlCl}_{4}]^{-}

…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Bromoaluminate Ionic Liquids

Hog

Schneider

Krossing

2017

Chemistry A European J

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“…[32] Corrosion protection using an electrodeposited thin aluminium layer was also investigated in steel. AlCl 3 /[C 2 mim][Cl] (60/ 40 mol%) mixture [39,40] was used obtaining high quality Al layers even in conventionally pretreated mild steel, but with low adhesion. It is necessary to remove iron oxide layers using an anodic electrochemical pretreatment prior to the Al deposition.…”

Section: Steelmentioning

confidence: 99%

Ionic Liquids in Surface Protection

Arias‐Pardilla

Espinosa

Bermúdez

2015

Electrochemistry in Ionic Liquids

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“…The cationic AlCl 2 /(urea) n + and anionic AlCl 4 − are major species, and the electrodeposition is completed through the cationic species . The mixture thus produced is stable as a liquid over a wide range of temperatures . In this study, the AlCl 3 /urea system was investigated and the factors affecting the deposition of aluminum were evaluated.…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting the Electrodeposition of Aluminum Metal in an Aluminum Chloride–Urea Electrolyte Solution

Prabu

Wang

2017

J Chinese Chemical Soc

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Electrodeposition of aluminum metal using an AlCl3–urea ionic liquid electrolyte at room temperature is studied. The molar ratio of AlCl3/urea, addition of toluene, stirring speed, deposition duration, and temperature are the major factors that affect the deposition of aluminum. The electroplating is carried out at temperatures in the range 20–60°C at a stirring speed 0–80 rpm using bias of 1 V applied for 2 h. The aluminum electrodeposition is enhanced at a high molar ratio of AlCl3/urea using 20% diluted toluene electrolyte. The microstructure of the deposited aluminum layer is examined using X‐ray diffraction (XRD), energy dispersive spectroscopy (EDS), and scanning electron microscopy (SEM). The current density is found to decrease with the duration and at lower temperatures. In this study, a current efficiency as high as ~89.98% could be obtained at 60°C.

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Electrodeposition and corrosion characterisation of micro- and nano-crystalline aluminium from AlCl3/1-ethyl-3-methylimidazolium chloride ionic liquid

Cited by 74 publications

References 41 publications

Synthesis and Characterization of Bromoaluminate Ionic Liquids

Synthesis and Characterization of Bromoaluminate Ionic Liquids

Ionic Liquids in Surface Protection

Factors Affecting the Electrodeposition of Aluminum Metal in an Aluminum Chloride–Urea Electrolyte Solution

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