Electrodeposition of Aluminum from Non-Aqueous Solutions

Blue, R. D.; Mathers, F. C.

doi:10.1149/1.3498038

Cited by 7 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From Table 6-2 it can be noted that values of 11~C and 11ic calculated from Equation (6-12) and Equation (6)(7)(8)(9)(10)(11)(12)(13)(14)(15) respective ly are similar over the complete range of current densities, i. e., up to 15 mA! cm 2 .…”

Section: Measurementsmentioning

confidence: 84%

“…This cathodic concentration polarization l1cC could then be determined separately from l1tC by using equation (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)) and equation (6)(7)(8)(9)(10)(11)(12), i. e., The technical grade aluminum bromide is also compulsory, since a certain amount of occluded bromine improves the conductivity of the electrolyte through the formation of a complexes (see Eqn. 7-14 of the mechanism discussion, p. 237).…”

Section: Polarization Measurements In Aqueous Electrolytesmentioning

confidence: 99%

“…These difference s in cathode overvoltag es are reported in the column headed by the symbol "'cC (cathodic concentrat ion polarizatio n) which, as shown in Section 6-8, is given by ,., cC = E(Rf1-C) -E(Rf2-Rf1) f -E(C-Rf3) (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) ",…”

Section: Measurementsmentioning

confidence: 99%

“…The charge transfer overvoltag es for electrolyte s having specifie conductanc es between 2 to 4 x 10-3 n-1 cm-1 (see [6][7][8][9][10][5][6][7][8][9][10][11][12][13][14] decreased by about 15 mV as the temperatu re increased from 27 to 67 o C.…”

Section: The Effect Of Temperatu Re On Cathodic Charge Transfer Overvmentioning

confidence: 99%

See 3 more Smart Citations

Electrodeposition of Aluminum from Alkyl Benzene Electrolytes

Capuano¹,

Davenport²

1971

J. Electrochem. Soc.

View full text Add to dashboard Cite

Aluminum was electrodeposited onto metallic substrates from a number of electrolytes consisting essentially of an AlBr3 solute of commercial purity and technical grade alkylbenzene solvents or solvent mixtures.Bright, fine grained, and adherent aluminum coatings 0.5 mil (.013 mm) thick were obtained at cathode efficiencies of the order of 70-85% and at anode efficiencies approaching 100%. The best electrolytes have been found to be those based upon ethylbenzene and diethylbenzene solvents with toluene as a less expensive diluent.The electrolytes have been found to operate most efficiently and reproducibly at specific conductances between 3.0 and 4.0 x 10 -3 fi -lcm -1.The conductance can be maintained at these levels by the periodic addUion of HBr gas.A cell for studying the polarization behavic.ur of organic-based electrolytes was developed and was used to determine cathode charge transfer overvoltages for the ethylbenzene-toluene (1: 1 volume), AlBr3 (50 wt. %) electrolytes. The charge transfer overvoltage was found to be 40 mV at current densities of 10 mAI cm 2 and the heats of activation for the electrodeposition process were of the order of 4 Kcal/ mole (27 to 67 0 C). EX)Jerimental Tafel plots ingicated that the electrodeposition process takes place in steps of 3 electrons. The ions responsible for the plating of aluminum are thought to be TT ,hydroxy 17 and bromo TT complexes. Name:

show abstract

Section: Measurementsmentioning

confidence: 84%

Section: Polarization Measurements In Aqueous Electrolytesmentioning

confidence: 99%

Section: Measurementsmentioning

confidence: 99%

Section: The Effect Of Temperatu Re On Cathodic Charge Transfer Overvmentioning

confidence: 99%

See 2 more Smart Citations

Electrodeposition of Aluminum from Alkyl Benzene Electrolytes

Capuano¹,

Davenport²

1971

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…For decades there has been a strong interest in research and industrial application of electroplating of aluminum due to the very useful properties of aluminum such as low density and corrosion resistance. Aluminum as an active metal can only be electroplated from nonaqueous solutions . Ionic liquids (ILs) such as dialkylimidazolium chloroaluminate melts were introduced as a new class of ILs in the early 1980s for electrodeposition of Al and are used up to now .…”

Section: Introductionmentioning

confidence: 99%

Stability of nicotinate and dodecyl sulfate in a Lewis acidic ionic liquid for aluminum electroplating and characterization of their degradation products

et al. 2016

View full text Add to dashboard Cite

Plating bath additives are essential for optimization of the morphology of electroplated layers. The ionic liquid 1-ethyl-3-methylimidazolium (EMIM) chloride plus 1.5 mol equivalents of AlCl3 has great potential for electroplating of aluminum. In this study, the chemical and electrochemical stability of the additives EMIM-nicotinate and sodium dodecyl sulfate and their effect on the stability of EMIM was investigated and analyzed. Nicotinate and its electrochemical decomposition product β-picoline could be detected and we show with a single HPLC-UV-MS method that EMIM is not affected by the decomposition of this additive. An adapted standard HPLC-UV-MS method together with GC-MS and ion chromatography was used to analyze the decomposition products of SDS and possible realkylation products of EMIM. Several volatile medium and short chain-length alkanes as well as sulfate ions have been found as decomposition products of SDS. Alkenium ions formed as intermediates during the decomposition of SDS realkylate EMIM to produce mono- up to pentasubstituted alkyl-imidazoles. A reaction pathway involving Wagner-Meerwein rearrangements and Friedel-Crafts alkylations has been suggested to account for the formation of the detected products.

show abstract

Galvano‐Aluminium und seine anodische Oxidation Galvano‐Al‐Eloxal‐Schichten — eine neue Oberfläche

Dötzer

1973

Chemie Ingenieur Technik

View full text Add to dashboard Cite

Electrodeposition of Aluminum from Non-Aqueous Solutions

Cited by 7 publications

References 0 publications

Electrodeposition of Aluminum from Alkyl Benzene Electrolytes

Electrodeposition of Aluminum from Alkyl Benzene Electrolytes

Stability of nicotinate and dodecyl sulfate in a Lewis acidic ionic liquid for aluminum electroplating and characterization of their degradation products

Galvano‐Aluminium und seine anodische Oxidation Galvano‐Al‐Eloxal‐Schichten — eine neue Oberfläche

Contact Info

Product

Resources

About