Electrochemical measurement of the oxygen diffusivity and solubility in concentrated alkaline media on rotating ring-disk and disk electrodes—application to industrial chlorine-soda electrolyte - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Electrochimica Acta Année : 2000

Electrochemical measurement of the oxygen diffusivity and solubility in concentrated alkaline media on rotating ring-disk and disk electrodes—application to industrial chlorine-soda electrolyte

Résumé

The measurement of oxygen transit time from the disk to the ring of a rotating ring-disk electrode has been used for the oxygen diffusivity determination. The oxygen solubility has then been deduced from the limiting current measure in quasi-steady state oxygen reduction voltammetry. The method validation has been done for a 1 M NaOH solution at 25°C. Its use in the case of industrial electrolytes, 11.1 M (33 wt.%) NaOH at 25 and 80°C for which no literature data are available, has then been undertaken; the oxygen solubility is 72 times smaller than in 1 M soda at 25°C.

Dates et versions

hal-00418264 , version 1 (17-09-2009)

Identifiants

Citer

Marian Chatenet, Marc Aurousseau, Robert Durand. Electrochemical measurement of the oxygen diffusivity and solubility in concentrated alkaline media on rotating ring-disk and disk electrodes—application to industrial chlorine-soda electrolyte. Electrochimica Acta, 2000, 45 (17), pp. 2823-2827. ⟨10.1016/S0013-4686(00)00325-X⟩. ⟨hal-00418264⟩
79 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More