Caractérisation de catalyseurs deNOx et deN2O par modélisation LSER (Linear Solvation Energy Relationship) : étude structure-propriétés

Abstract : This study presents the characterisation of deNOx and deN2O catalysts in terms of structure-properties relationship in order to understand the different interactions involved between catalysts and gaseous species present in the system and to contribute to the formulation of these materials. The LSER modelisation (Linear Solvation Energy Relationship) allows us to prove the interactions involve during the adsorption process of compounds at the surface. The evolution of the catalyst’s surface after different treatments is following by the LSER approach. The comparison of the affinity proves the differences observed in the LSER equations: especially the polarity, basicity and acidity terms, implicated in aromatics, alcohol and water adsorption. This method shows differences between different steps in the processes of NOx and N2O elimination (as the strong adsorption of reducers on the catalyst for the coal-deNOx, whereas the same effect involves weaker performances in the case of the deN2O. The LSER method which consists in a thermodynamic approach, is a new useful technique for the understanding of the phenomenon involved in the deNOx and deN2O catalysis processes. It also demonstrates that the adsorption processes are not so important in the catalysts performances
Document type :
Theses
File URL :
http://docnum.univ-lorraine.fr/prive/UPVM_T_2008_MULLER_Sebastien.pdf
Complete list of metadatas

https://hal.univ-lorraine.fr/tel-01751309
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 1:15:49 PM
Last modification on : Monday, April 16, 2018 - 10:41:06 AM

Identifiers

  • HAL Id : tel-01751309, version 1

Collections

Citation

Sébastien Muller. Caractérisation de catalyseurs deNOx et deN2O par modélisation LSER (Linear Solvation Energy Relationship) : étude structure-propriétés. Autre. Université Paul Verlaine - Metz, 2008. Français. ⟨NNT : 2008METZ048S⟩. ⟨tel-01751309⟩

Share

Metrics

Record views

6