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http://hdl.handle.net/10261/182386
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dc.contributor.author | Ayari, Faouzi | - |
dc.contributor.author | Mhamdi, Mourad | - |
dc.contributor.author | Álvarez-Rodríguez, Jesús | - |
dc.contributor.author | Guerrero-Ruiz, Antonio | - |
dc.contributor.author | Delahay, Gérard | - |
dc.contributor.author | Ghorbel, Abdelhamid | - |
dc.date.accessioned | 2019-05-27T07:18:12Z | - |
dc.date.available | 2019-05-27T07:18:12Z | - |
dc.date.issued | 2013-05-02 | - |
dc.identifier.citation | Applied Catalysis B: Environmental 134-135: 367-380 (2013) | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | http://hdl.handle.net/10261/182386 | - |
dc.description.abstract | Cr exchanged ZSM-5 catalysts (Cr/Al = 1) prepared by solid-state ion exchange were tested in SCR of NO with ammonia. Since CrCl3 precursor sublimates during the solid-state reaction, chromate species were stabilized in the exchange sites of H+-ZSM-5 (Si/Al = 15) and Cr2O3 formation is, therefore, limited. However, using Cr nitrate and NH4+-ZSM-5 (Si/Al = 26) zeolite, massive particles of α-Cr2O3 occupied the catalyst surface. At the contrary, well-dispersed particles of Cr2O3 were detected with H+-ZSM-5 and Cr nitrate precursor. Starting from Cr acetate precursor, agglomerates of amorphous oxide were detected with H+-ZSM-5 like support. In the temperature range 50–300 °C, Cr chloride and Cr nitrate precursors and H+-ZSM-5 led to highly active catalysts, while Cr nitrate and NH4+-ZSM-5 led to a poorly active catalyst. However, catalysts issued from Cr acetate are promising in SCR but inefficient agglomerates of oxide (amorphous or crystalline chromia) could be avoided with NH4+-ZSM-5 like support. | - |
dc.publisher | Elsevier | - |
dc.rights | closedAccess | - |
dc.subject | Cr-ZSM-5 | - |
dc.subject | Ammonia | - |
dc.subject | XPS spectroscopy | - |
dc.subject | Solid-state ion exchange | - |
dc.subject | UV–vis DRS | - |
dc.subject | Selective catalytic reduction (SCR) | - |
dc.title | Selective catalytic reduction of NO with NH3 over Cr-ZSM-5 catalysts: General characterization and catalysts screening | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.apcatb.2013.01.026 | - |
dc.relation.publisherversion | https://doi.org/10.1016/j.apcatb.2013.01.026 | - |
dc.date.updated | 2019-05-27T07:18:12Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
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accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
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