Nernst's diffusion layer

{
  "id": "MLC-T-CHM-007829",
  "term": "Nernst's diffusion layer",
  "field": "Chemistry",
  "definition": "A hypothetical, stationary layer of fluid adjacent to a solid surface, such as an electrode, where mass transport is assumed to occur exclusively by diffusion. Within this layer, a concentration gradient develops, driving the movement of species to or from the surface. The thickness of this conceptual layer, denoted by δ, is a key parameter in electrochemical kinetics and mass transfer calculations.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "diffusion",
    "diffusion layer",
    "interface",
    "mass transfer coefficient",
    "resistivity"
  ],
  "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/nernst-s-diffusion-layer/"
}