Homogeneous catalysis
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'''Homogeneous catalysis''' is a [[chemistry]] term which describes [[catalysis]] where the [[catalyst]] is in the same phase (ie. [[solid]], [[liquid]] and [[gas]]) as the [[reactants]]. It is the opposite to [[heterogeneous catalysis]].
Notice that two liquids can be different phases. Therefore, for example, the petrochemical [[alkylation]] process features [[heterogeneous catalysis]], although both the catalyst (acid) and reactants (hydrocarbons) are liquids.
The [[hydrolysis]] of [[ester]]s by [[acid catalysis]] is an example of this - all reactants and catalyst are dissolved in water:
:CH<sub>3</sub>CO<sub>2</sub>CH<sub>3</sub>(aq) + H<sub>2</sub>O(l) ↔ CH<sub>3</sub>CO<sub>2</sub>H(aq) + CH<sub>3</sub>OH(aq) - ''with H<sup>+</sup> catalyst.''
Contemporary examples of homogeneous catalysis utilizing metal complexes include [[hydroformylation]], [[Ziegler-Natta]] polymerization, [[hydrogen transfer catalysis]], [[hydrogenation]], and [[C-H activation]].<ref>C. Elschenbroich, A. Salzer ”Organometallics : A Concise Introduction” (2nd Ed) (1992) Wiley-VCH: Weinheim. ISBN 3-527-28165-7</ref>
==References==
<references/>
[[de:Homogene Katalyse]]
[[Category:Catalysts]]
[[Category:Homogeneous catalysis]]