Diffusion layer thickness

{
  "id": "MLC-T-CHM-003198",
  "term": "Diffusion layer thickness",
  "field": "Chemistry",
  "definition": "The effective distance from an electrode surface over which the concentration of an electroactive species changes from its bulk solution value to its surface value during an electrochemical process. This concept simplifies the complex mass transport phenomena near the electrode. It is often denoted by the symbol δ and can vary with experimental conditions such as stirring rate.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "Faraday constant",
    "charge number",
    "diffusion coefficient",
    "heterogeneous diffusion rate constant",
    "limiting current"
  ],
  "references": [
    "PAC, 1974, 37, 499. 'Electrochemical nomenclature' on page 513 (https://doi.org/10.1351/pac197437040499)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/diffusion-layer-thickness/"
}