Skip to content
Main menu
  • Main page
  • Discover
  • Unexpected connections
  • Topics
  • Random article
  • Search
Your library
  • Saved articles
  • Recent discoveries
  • Rabbit-hole trails
Topic areas
  • Computer Science
  • Mathematics
  • Physics
  • Engineering
  • Biology
  • Economics
  • Curiosities
WikiholeDeeper into Wikipedia
EnglishEN
  • Saved
  • History

  • Article text and media come live from Wikipedia via the official MediaWiki API and are available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply. Each article links to its source and revision.
  • WikiHole is an independent project and is not affiliated with the Wikimedia Foundation.
  • How ranking works
  • All topics
  • Reading history
  • Random article
  • MediaWiki API

Catalysis

  • Article
  • Rabbit hole
  • Read
  • View history
Tools
Actions
  • Read
  • View history
General
  • Recent changes
  • Related articles
  • Random discovery
This article
Reading time
17 min
Quality
C-class
Views
2.3k in 14 days
Last edited
6 Nov 2026
Print/export
  • Printable version
In other projects
  • Wikidata item
From Wikipedia, the free encyclopedia
Rabbit hole:
  1. Catalysis
Catalysis
Process of increasing the rate of a chemical reaction

Catalysis (/kəˈtælɪsɪs/, kə-TAL-iss-iss) is the increase in rate of a chemical reaction due to an added substance known as a catalyst12 (/ˈkætəlɪst/ KAT-əl-ist). Catalysts are not consumed by the reaction and remain unchanged after the reaction.3 If the reaction is rapid and the catalyst is recycled quickly, a very small amount of catalyst often suffices;4 mixing, surface area, and temperature are important factors in reaction rate. Catalysts generally react with one or more reactants to form intermediates that subsequently give the final reaction product, in the process of regenerating the catalyst.

"Catalyst" redirects here. For other uses, see Catalyst (disambiguation).

Not to be confused with Catalist or Cathalistis. For the stage of metabolism, see Catabolism.

An air filter that uses a low-temperature oxidation catalyst to convert carbon monoxide to less toxic carbon dioxide at room temperature. It can also remove formaldehyde from the air.

The rate increase occurs because the catalyst allows the reaction to occur by an alternative mechanism which may be much faster than the noncatalyzed mechanism. However the noncatalyzed mechanism does remain possible, so that the total rate (catalyzed plus noncatalyzed) can only increase in the presence of the catalyst and never decrease.5

Catalysis may be classified as either homogeneous, whose components are dispersed in the same phase (usually gaseous or liquid) as the reactant, or heterogeneous, whose components are not in the same phase. Enzymes and other biocatalysts are often considered as a third category. Furthermore, a nanocatalyst is a nanosize catalyst used in the field of applied nanoscience.

Catalysis is nearly ubiquitous in the chemical industry.6 Estimates are that 90% of all commercially produced chemical products involve catalysts at some stage in the process of their manufacture.7

The term "catalyst" is derived from Greek καταλύειν, kataluein, meaning "loosen" or "untie". The concept of catalysis was invented by chemist Elizabeth Fulhame, based on her novel work in oxidation-reduction experiments.89

Loading the rest of the article…

Recent changes

Rabbit hole

Where Catalysis leads. Every connection below has a source: a link in this article, a shared Wikipedia category, or CirrusSearch text similarity. Articles already on your trail are left out.

The rest of this article could not be loaded.

Wikipedia is rate limiting us right now. Try again in a minute.
Try again

Related articles are unavailable right now.

Wikipedia is rate limiting us right now. Try again in a minute.
Last edited
6 Nov 2026

Wikipedia did not return the list of recent edits.

View full revision history

General
  • Recent changes
  • Related articles
  • Random discovery
This article
Reading time
17 min
Quality
C-class
Views
2.3k in 14 days
Last edited
6 Nov 2026
Print/export
  • Printable version
In other projects
  • Wikidata item
Last edited
6 Nov 2026