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・ Heteroflexibility
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Heterogeneous catalysis
・ Heterogeneous catalytic reactor
・ Heterogeneous Combustion
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Heterogeneous catalysis : ウィキペディア英語版
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.〔Gadi Rothenberg, Catalysis: Concepts and green applications, Wiley-VCH: Weinheim, ISBN 978-3-527-31824-7〕 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.〔Swathi, R.S. and Sebastian, K.L. Molecular mechanism of heterogeneous catalysis. Resonance Vol. 13 Issue 6 (2008) p. 548-560.〕〔(Fritz Haber - Biographical )〕〔(Carl Bosch - Biographical )〕〔(Irving Langmuir - Biographical )〕〔(Gerhard Ertl - Biographical )〕
==Adsorption==
Adsorption is commonly an essential first step in heterogeneous catalysis. Adsorption is when a molecule in the gas phase or in solution binds to atoms on the solid or liquid surface. The molecule that is binding is called the adsorbate, and the surface to which it binds is the adsorbent. The process of the adsorbate binding to the adsorbent is called adsorption. The reverse of this process (the adsorbate splitting from adsorbent) is called desorption. In terms of catalyst support, the catalyst is the adsorbate and the support is the adsorbent.

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