About the degree of dissociation of admolecules on surfaces

Autor:	R. Dagonnier, P. Dufour, Martine Dumont, B. Sente
Rok vydání:	1994
Předmět:	Molecular adsorption Underdetermined system Chemistry Thermal desorption Thermodynamics Surfaces and Interfaces Condensed Matter Physics Kinetic energy Dissociation (chemistry) Spectral line Surfaces Coatings and Films Adsorption Phenomenological model Materials Chemistry
Zdroj:	Surface Science. 313:107-119
ISSN:	0039-6028
Popis:	The characteristics of the thermal desorption spectra obtained for isotopic exchange reactions have been related to the degrees of dissociation introduced on a phenomenological basis by Matsushima [Surf. Sci. 157 (1985) 297; 217 (1989) 155]. This formulation leads to an underdetermined system of equations. Indispensable simplifications are analysed by means of kinetic models with one-site (or bridged) molecular adsorption precursor states. As a result, we tentatively propose an experimental test about the nature of these adsorption precursor states as well as subsequent experimental procedures to reach reliable values for the degrees of dissociation of the admolecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::029edce87f92d486965222b443234d95 https://doi.org/10.1016/0039-6028(94)91160-6 Zobrazit plný text záznamu