## Abstnwt-The deposition and dissolution of aluminium in an acidic cryolite melt was studied using a graphite electrode. The techniques employed were cyclic voltammetry, current reversal chronopotentiometry (crc) with and without a varying delay time at zero current between the cathodic and anodi
Electrode kinetics of the aluminium deposition from tetrahydrofuran electrolytes
β Scribed by J. Eckert; M. Galova
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 552 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0013-4686
No coin nor oath required. For personal study only.
β¦ Synopsis
The electrolyte applied for the study of aluminium deposition consisted of AICI, and LiAlH, in tetrahydrofuran or tetrahydrofuran-benzene mixture. It has been shown that the kinetic parameters such as the exchange current density and transfer coefficients depend to a great extent upon the molar ratio of both
components. An electrode mechanism has been suggested in good agreement with the experimental results
π SIMILAR VOLUMES
The kinetics of aluminium deposition from NaCI-AICl, and NaCl-KCI-AlCI, melts (cata, -=z 0.4 mol %) was studied by linear sweep ~oltammetry and potential step ampero.nctry. The reduction of AK& on tungsten and aluminium elcctrodcs was found to be diffusion controlled. The diffusion coefficients of A
The kinetics of aluminium deposition from NaCI-AICl, melts (c,,,,, < 10 mol%) contained in alumina crucibles was studied by linear sweep voltammetry and potential step amperometry at temperatures around 820Β°C. At low concentrations (r,,,, I c 0.4 mol %) the reduction of AlCl, on iiquid aluminium has
The Zn deposition from NaClO, and KC1 solution has been investigated by an automated electrode kinetic measurement system and the data is fitted to a reaction model. A value of the standard rate is probably independent of the anion, the bulk concentration. and the real surface area of the metal.
The cathodic deposition of carbon from fused carbonates is reported. The yield is quantitative under favourable conditions (6OOC, Ar atmosphere) but diminishes in the presence of CO\* and with rise in temperature. If the melt does not contain Li+ ions, alkali metal is the only cathodic product. The