Interfacial concentration

{
  "id": "MLC-T-CHM-005935",
  "term": "Interfacial concentration",
  "field": "Chemistry",
  "definition": "The concentration of a species at the outer edge of the electrical double layer, on the solution side, just beyond the region in which the solution is appreciably non-neutral; the quantity appears in electrode kinetics. It is used when the double layer is much thinner than the diffusion layer, and it is obtained from theory or from limiting-current measurements. It differs from the bulk concentration, which is measured far from the electrode.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "diffusion layer",
    "interfacial double-layer",
    "limiting current",
    "mass transfer coefficient"
  ],
  "references": [
    "PAC, 1981, 53, 1827. 'Nomenclature for transport phenomena in electrolytic systems' on page 1837 (https://doi.org/10.1351/pac198153101827)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/interfacial-concentration/"
}