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In cooperative catalysis, chemical species that improve catalytic activity are called cocatalysts or promoters. In tandem catalysis two or more different catalysts are coupled in a one-pot reaction. In autocatalysis, the catalyst is a product of the overall reaction, in contrast to all other types of catalysis considered in this article.
Catalysis, the modification of the rate of a chemical reaction, usually an acceleration, by addition of a substance not consumed during the reaction. Each catalyst molecule may induce the transformation of many molecules of reactants. Learn about the history, classification, and reactions of catalysis.
Catalysis is a process that speeds up a chemical reaction without being changed by it. Learn the etymology, history, and usage of the word catalysis with examples from various sources.
Shape Selective Catalysis by Zeolites Shape-selective catalysis refers to a catalytic reaction that is influenced by the pore structure of the catalyst as well as the size of the reactant and product molecules. Because of their honeycomb-like structures, zeolites are excellent shape-selective catalysts.
Learn the definition, examples, and types of catalysis, the process of speeding up a chemical reaction using a catalyst. Find out how catalysts work, what units measure them, and how to demonstrate catalysis at home.
Learn what catalysts are, how they work, and why they are important for chemical reactions and industry. Find out how DOE supports basic research on catalysts and their applications for renewable fuels and materials.
Learn what catalysts are and how they work in terms of altering the parameters of a reaction. Explore the similarities and differences between homogeneous, heterogeneous and enzyme catalysis, and the mechanisms and examples of each.
Learn what catalysis is and how it affects the rate and selectivity of chemical reactions. Explore the different types of catalytic reactions, such as homogeneous, heterogeneous, enzyme, and acid-base catalysis, with examples and mechanisms.
Catalysis is the process of change in rate (speed) of a chemical reaction due to the help of a catalyst. Unlike other chemicals which take part in the reaction, a catalyst is not consumed by the reaction itself.
Learn about catalysis, the process of increasing the rate of a chemical reaction by adding a substance called a catalyst. Explore chapters and articles on various topics related to catalysis, such as nanobiocatalysis, metal oxide heterostructures, and biocatalysis.