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A brief introduction to chemistry catalysis

Catalysis is the acceleration of a chemical reaction by a substance that is not consumed itself. When a chemical is placed with a compatible catalyst, there is a reduction in the energy required for the chemical to reach the transition state for that particular reaction.

Typically on the basis of nature and the physical state of substance used in the chemical reaction, chemical catalysis can be divided into three types; Homogeneous catalysis, Heterogeneous catalysis, and Autocatalysis.

Homogeneous catalysis is a type of catalysis in which the catalyst operates in the same phase as the reactants — usually dissolved in a solvent. Mechanistic studies of homogeneous catalysts are generally easier than those of heterogeneous catalysts, which aids optimization.

Heterogeneous catalysis, on the other hand, is catalysis where the phase of catalysts differs from that of the reactants or products.

A single chemical reaction is called autocatalytic if one of the reaction products is also a catalyst for the same or a coupled reaction. Such a reaction is called an autocatalytic reaction.


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