English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/162158
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Fe-containing zeolites for NH3-SCR of NOx: Effect of structure, synthesis procedure, and chemical composition on catalytic performance and stability

AutorMartín, Nuria; Vennestrøm, Peter N. R.; Thøgersen, Joakim; Moliner Marín, Manuel; Corma, Avelino
Palabras claveZeolites
Selective catalytic reduction
Heterogeneous catalysis
Iron
Nitrogen oxides
Fecha de publicación2017
EditorWiley-VCH
CitaciónChemistry - A European Journal 23(54): 13404-1341 (2017)
ResumenThe direct preparation of different iron-containing Beta and CHA zeolites has been attempted under diverse synthesis conditions, including in alkaline and fluoride media, to evaluate the influence of their physicochemical properties on the selective catalytic reduction (SCR) of NO using NH as reductant. Of the different Fe-Beta zeolites, the sample prepared in the absence of alkali cations with a Si/Al ratio of around 13 showed high NO conversion values (>90 %). However, this catalyst suffered from severe deactivation when aged at high temperatures in the presence of steam. The preparation of more hydrophobic Fe-Beta zeolites did not improve the resistance of the catalyst against steam. In contrast, Fe-CHA zeolites prepared by a one-pot method under alkaline conditions with a Si/Al ratio of around 13 by using N,N,N-trimethyladamantylammonium as template not only showed excellent catalytic activity but also high hydrothermal stability, especially when sodium cations were selectively removed. Moreover, the Fe-CHA material synthesized by using the less expensive tetraethylammonium template also resulted in an active and hydrothermally stable catalyst.
Versión del editorhttps://doi.org/10.1002/chem.201701742
URIhttp://hdl.handle.net/10261/162158
Identificadoresdoi: 10.1002/chem.201701742
e-issn: 1521-3765
issn: 0947-6539
Aparece en las colecciones: (ITQ) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
2017-03-27_Manuscript_Fe-zeolites.pdf897,8 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.