Electrochemical cell in which external electrical work drives a non-spontaneous redox reaction (ΔG > 0). Used in metal plating, aluminium smelting, and water electrolysis.
Electrolytic cell
Related concepts
- Oxidation-reduction (redox)
- Gibbs free energy (G)
- Anode and cathode
- Faraday's laws of electrolysis
- Butler-Volmer: i = i₀ [exp(αFη/RT) − exp(−(1−α)Fη/RT)] (symmetric α=1/2 ⇒ 2 i₀ sinh)
- Faraday's law: n = Q/(zF); m = n·M (coulometry / electroplating stoichiometry)
- Cu²⁺+2e⁻→Cu, M=127/2 g/mol, Q=2F ⇒ n=1 mol, mass = 127/2 g