Enhancement of hydrothermal stability of Cu-ZSM5 catalyst for NO decomposition (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Enhancement of hydrothermal stability of Cu-ZSM5 catalyst for NO decomposition (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• B. I. Palella; L. Lisi; R. Pirone; G. Russo; M. Notaro (2006)
  Enhancement of hydrothermal stability of Cu-ZSM5 catalyst for NO decomposition
  in Kinetics and catalysis; Springer, London (Regno Unito)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• B. I. Palella; L. Lisi; R. Pirone; G. Russo; M. Notaro (literal)

Pagina inizio

• 728 (literal)

Pagina fine

• 736 (literal)

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• 47 (literal)

Rivista

• Kinetics and catalysis (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 5 (literal)

Note

• ISI Web of Science (WOS) (literal)

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• Dipartimento di Ingegneria Chimica Universita di Napoli Federico II; P.le V. Tecchio, Napoli, 80-80125 Italy Istituto di Ricerche sulla Combustione, CNR; P.le V. Tecchio, Napoli, 80-80125 Italy Centro Elettrotecnico Sperimentale Italiano, Via R. Ribattino, 54-Milano, Italy (literal)

Titolo

• Enhancement of hydrothermal stability of Cu-ZSM5 catalyst for NO decomposition (literal)

Abstract

• RECu-ZSM5 samples (RE = La, Sm or Ce) have been prepared by ion-exchange of H-ZSM5 with rare earth and copper ions in an aqueous solution both simultaneously and consecutively (RE before copper), and their physico-chemical and catalytic properties in NO decomposition have been compared with those of a Cu-ZSM5 with a similar copper content. The catalysts have been characterized by N 2 adsorption at 77 K (BET) and XRD before and after aging cycles under wet (2-2.5 vol % H 2 O) conditions at 450-500 ° C. NO decomposition tests have been carried out in a fixed bed reactor at 450 ° C under dry or wet conditions on both fresh and aged catalysts. NO adsorption tests have been performed at 120 ° C on the same samples. The addition of RE does not affect the crystalline structure, surface area, and porosity but strongly enhances the catalytic activity and the hydrothermal stability of Cu-ZSM5, which, on the contrary, is completely deactivated under wet conditions. The two-step exchanged catalysts provide better performances likely due to the larger RE exchange level obtained with this method. A unique linear correlation between the amount of N 2 O produced in the NO adsorption tests, related to the reoxidation of prereduced Cu + sites, and the TOF, estimated from the catalytic activity tests, has been found for both fresh and aged catalysts. (literal)

Editore

• Springer (Editore)

Prodotto di

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Studio dei processi e tecnologie di combustione a basso impatto ambientale (ET.P01.003.001) (Modulo)

Autore CNR

• RAFFAELE PIRONE (Unità di personale interno)
• LUCIANA LISI (Unità di personale interno)

Incoming links:

Autore CNR di

• LUCIANA LISI (Unità di personale interno)
• RAFFAELE PIRONE (Unità di personale interno)

Prodotto

• Istituto di ricerche sulla combustione (IRC) (Istituto)
• Studio dei processi e tecnologie di combustione a basso impatto ambientale (ET.P01.003.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Kinetics and catalysis (Rivista)

Editore di

• Springer (Editore)