Active site

{
  "id": "MLC-T-MET-003278",
  "term": "Active site",
  "field": "Meteorology and atmospheric science",
  "definition": "A specific region on the surface of a catalyst, such as an atmospheric aerosol particle or ice crystal, where reactant molecules attach and a chemical transformation is facilitated. The unique geometric and electronic structure of this location lowers the activation energy for a particular reaction. For instance, active sites on mineral dust particles can catalyze the oxidation of sulfur dioxide to sulfate, influencing aerosol composition and cloud formation.",
  "url": "https://mlchart.com/terminology/meteorology/active-site/"
}