The present paper provides a critical survey of the most recent and relevant data obtained in our laboratories on the characterization of the catalyst bulk and surface structure and on the identification of the details of the reaction mechanism over commercial and model V2O5-WO3/TiO2 catalysts. In particular, the following aspects have been specifically addressed: i) the nature of the adsorbed ammonia species present on the catalyst surface; ii) their role and reactivity in the SCR reaction; iii) the role of the V, W and Ti components in the reaction mechanism and on the catalyst reactivity.
Chemical, structural and mechanistic aspects on NOx SCR over commercial and model oxide catalysts
Ramis Gianguido;Busca Guido;
1997-01-01
Abstract
The present paper provides a critical survey of the most recent and relevant data obtained in our laboratories on the characterization of the catalyst bulk and surface structure and on the identification of the details of the reaction mechanism over commercial and model V2O5-WO3/TiO2 catalysts. In particular, the following aspects have been specifically addressed: i) the nature of the adsorbed ammonia species present on the catalyst surface; ii) their role and reactivity in the SCR reaction; iii) the role of the V, W and Ti components in the reaction mechanism and on the catalyst reactivity.
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