Double-layer current

{
  "id": "MLC-T-CHM-003413",
  "term": "Double-layer current",
  "field": "Chemistry",
  "definition": "The non-faradaic current that flows when the potential of an electrode changes and the ions at its surface rearrange, charging or discharging the electrical double layer that forms there, with no electron transfer across the interface. Also called the charging or capacitive current, it appears as background in voltammetry and obscures small faradaic signals, which is why pulse techniques sample the current after it has decayed.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "interfacial double-layer",
    "faradaic current",
    "interface",
    "limiting diffusion current",
    "surface charge density"
  ],
  "references": [
    "PAC, 1985, 57, 1491. 'Recommended terms, symbols, and definitions for electroanalytical chemistry (Recommendations 1985)' on page 1496 (https://doi.org/10.1351/pac198557101491)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/double-layer-current/"
}