What are heterogeneous catalysis?

Heterogeneous Catalysis

In chemistry, heterogeneous catalysis refers to the form of catalysis where the phase of the catalyst differs from that of the reactants. Phase here refers not only to solid, liquid, vs gas, but also immiscible liquids, e.g. oil and water. The great majority of practical heterogeneous catalysts are solids and the great majority of reactants are gases or liquids. Heterogeneous catalysis is of paramount importance in many areas of the chemical and energy industries. Heterogeneous catalysis has attracted Nobel prizes for Fritz Haber and Carl Bosch in 1918, Irving Langmuir in 1932, and Gerhard Ertl in 2007.

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Some articles on heterogeneous catalysis:

Heterogeneous Catalysis - Examples - Other Examples
... Asymmetric heterogeneous catalysis affords enantiomerically enriched compounds using chiral heterogeneous catalysts ... The vast majority of heterogeneous catalysts are based on metals or metal oxides, however, some chemical reactions can be catalyzed by carbon-based materials, e.g ...
John Meurig Thomas
... chemist and educator primarily known for his work on heterogeneous catalysis, solid-state chemistry, and surface and materials science ... books, including Principles and Practice of Heterogeneous Catalysis (with W ... He is one of the most cited authors in the field of heterogeneous catalysis ...
Homogeneous Catalysis - Contrast With Heterogeneous Catalysis
... Homogeneous catalysis differs from heterogeneous catalysis in that the catalyst is in a different phase than the reactants ... One example of heterogeneous catalysis is the petrochemical alkylation process, where the liquid reactants are immiscible with a solution containing ... Heterogeneous catalysis offers the advantage that products are readily separated from the catalyst, and heterogeneous catalysts are often more stable and ...