Catalyst

{
  "id": "MLC-T-CHM-001705",
  "term": "Catalyst",
  "field": "Chemistry",
  "definition": "A species that speeds a reaction up and is regenerated by the end of it, so it is not used up in the net change. It acts by offering a different mechanism with a lower activation energy, and it does not alter the equilibrium position. Platinum in a car's catalytic converter and iron in the Haber process for ammonia are familiar examples.",
  "synonyms": [
    "surface catalysis",
    "accelerator",
    "kinetic synergist"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "catalysis",
    "Michaelis-Menten kinetics",
    "activator",
    "autocatalytic reaction",
    "bifunctional catalysis",
    "catalytic coefficient",
    "electron-transfer catalysis",
    "esters",
    "general acid catalysis",
    "general base catalysis",
    "hydrolysis",
    "inhibitor",
    "interface",
    "intramolecular catalysis",
    "micellar catalysis",
    "phase-transfer catalysis",
    "product",
    "pseudo-catalysis",
    "rate of reaction",
    "reactant",
    "specific catalysis"
  ],
  "references": [
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 155 (https://doi.org/10.1351/pac199668010149)",
    "PAC, 1993, 65, 2373. 'Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)' on page 2380 (https://doi.org/10.1351/pac199365112373)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/catalyst/"
}