D. Foraison, J. Souquet
May 1, 1978
Citations
0
Influential Citations
3
Citations
Journal
Electrochimica Acta
Abstract
Abstract An original type of cell, containing three electrodes, was used to study the glass/alkali amalgam interface. The experimental results presented concern the glass composition 0.66 SiO 2 0.33 Na 2 O, with HgNa amalgams having a sodium molar fraction of between 10 −8 and 2.7 × 10 −2 . Measurements were carried out between 150 and 220°C. Various experimental techniques were used to study this interface with the arrangement adopted: potentiometric measurements, plotting of impedance diagrams, polarisation and chrono-amperometric curves. From the chronoamperometry measurements, it is obvious that for low sodium contents only a small part of the amorphous electrolyte/amalgam interface is electrochemically active. The relative importance of the different overvoltages is measured in the neighbourhood of equilibrium.