Abstract
Two copper ion-exchanged zeolites, Cu/NaY and Cu/NaZSM-5 have been studied by several techniques (TPR, TPD of NO, IR spectroscopy of adsorbed NO and XPS) and their catalytic activity for NO-decomposition have been determined under dynamic conditions. The results obtained here show that copper is stabilized as Cu[sup +] in Cu/NaZSM-5 after calcination in air at 673K, while in Cu/NaY the initial Cu[sup +]-ions are easier oxidized to Cu[sup 2+], this leading to a completely different catalytic behavior in the reaction of NO-decomposition. So, whereas the Cu/NaZSM-5 exhibits a high NO-conversion at the reaction temperatures (573 and 873K), the parent Cu/NaY zeolite becomes deactivated in the first stages of reaction.
Sepulveda-Escribano, A;
Marquez-Alvarez, C;
Rodriquez-Ramos, I;
Fierro, J L.G.;
[1]
Guerrero-Ruiz, A
[2]
- Instituto de Catalisis y Petroleoquimica, Madrid (Spain)
- Departamento de Quimica Inorganica, UNED, Madrid (Spain)
Citation Formats
Sepulveda-Escribano, A, Marquez-Alvarez, C, Rodriquez-Ramos, I, Fierro, J L.G., and Guerrero-Ruiz, A.
Decomposition of NO on Cu-loaded zeolites.
Netherlands: N. p.,
1993.
Web.
doi:10.1016/0920-5861(93)80020-2.
Sepulveda-Escribano, A, Marquez-Alvarez, C, Rodriquez-Ramos, I, Fierro, J L.G., & Guerrero-Ruiz, A.
Decomposition of NO on Cu-loaded zeolites.
Netherlands.
https://doi.org/10.1016/0920-5861(93)80020-2
Sepulveda-Escribano, A, Marquez-Alvarez, C, Rodriquez-Ramos, I, Fierro, J L.G., and Guerrero-Ruiz, A.
1993.
"Decomposition of NO on Cu-loaded zeolites."
Netherlands.
https://doi.org/10.1016/0920-5861(93)80020-2.
@misc{etde_6210154,
title = {Decomposition of NO on Cu-loaded zeolites}
author = {Sepulveda-Escribano, A, Marquez-Alvarez, C, Rodriquez-Ramos, I, Fierro, J L.G., and Guerrero-Ruiz, A}
abstractNote = {Two copper ion-exchanged zeolites, Cu/NaY and Cu/NaZSM-5 have been studied by several techniques (TPR, TPD of NO, IR spectroscopy of adsorbed NO and XPS) and their catalytic activity for NO-decomposition have been determined under dynamic conditions. The results obtained here show that copper is stabilized as Cu[sup +] in Cu/NaZSM-5 after calcination in air at 673K, while in Cu/NaY the initial Cu[sup +]-ions are easier oxidized to Cu[sup 2+], this leading to a completely different catalytic behavior in the reaction of NO-decomposition. So, whereas the Cu/NaZSM-5 exhibits a high NO-conversion at the reaction temperatures (573 and 873K), the parent Cu/NaY zeolite becomes deactivated in the first stages of reaction.}
doi = {10.1016/0920-5861(93)80020-2}
journal = []
volume = {17:1-2}
journal type = {AC}
place = {Netherlands}
year = {1993}
month = {May}
}
title = {Decomposition of NO on Cu-loaded zeolites}
author = {Sepulveda-Escribano, A, Marquez-Alvarez, C, Rodriquez-Ramos, I, Fierro, J L.G., and Guerrero-Ruiz, A}
abstractNote = {Two copper ion-exchanged zeolites, Cu/NaY and Cu/NaZSM-5 have been studied by several techniques (TPR, TPD of NO, IR spectroscopy of adsorbed NO and XPS) and their catalytic activity for NO-decomposition have been determined under dynamic conditions. The results obtained here show that copper is stabilized as Cu[sup +] in Cu/NaZSM-5 after calcination in air at 673K, while in Cu/NaY the initial Cu[sup +]-ions are easier oxidized to Cu[sup 2+], this leading to a completely different catalytic behavior in the reaction of NO-decomposition. So, whereas the Cu/NaZSM-5 exhibits a high NO-conversion at the reaction temperatures (573 and 873K), the parent Cu/NaY zeolite becomes deactivated in the first stages of reaction.}
doi = {10.1016/0920-5861(93)80020-2}
journal = []
volume = {17:1-2}
journal type = {AC}
place = {Netherlands}
year = {1993}
month = {May}
}