Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso

Eley-Rideal Mechanism

  • William M. Irvine
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_502-3


The Eley-Rideal mechanism is a theoretical model of how some bimolecular chemical reactions can take place on solid surfaces. In the theory, one atom or molecule is adsorbed on the surface, and another reacts directly from the gas phase. This may be contrasted with the Langmuir-Hinshelwood mechanism. In the interstellar medium, the formation of molecular hydrogen is thought to occur primarily through reactions on the surfaces of dust grains.

See Also


Theoretical Model Bioorganic Chemistry Solid Surface Molecular Hydrogen Interstellar Medium 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of AstronomyUniversity of MassachusettsAmherstUSA