dc.contributor.author | Cruz-Cabeza, Aurora | |
dc.contributor.author | Esquivel, Dolores | |
dc.contributor.author | Jiménez-Sanchidrián, César | |
dc.contributor.author | Romero-Salguero, F.J. | |
dc.date.accessioned | 2017-11-09T12:13:33Z | |
dc.date.available | 2017-11-09T12:13:33Z | |
dc.date.issued | 2012 | |
dc.identifier.uri | http://hdl.handle.net/10396/15397 | |
dc.description.abstract | Various metal-β zeolites have been synthesized under similar ion-exchange
conditions. During the exchange process, the nature and acid strength of the used cations
modified the composition and textural properties as well as the Brönsted and Lewis acidity
of the final materials. Zeolites exchanged with divalent cations showed a clear decrease of
their surface Brönsted acidity and an increase of their Lewis acidity. All materials were
active as catalysts for the transformation of acetone into hydrocarbons. Although the
protonic zeolite was the most active in the acetone conversion (96.8% conversion), the
metal-exchanged zeolites showed varied selectivities towards different products of the
reaction. In particular, we found the Cu-β to have a considerable selectivity towards the
production of isobutene from acetone (over 31% yield compared to 7.5% of the protonic
zeolite). We propose different reactions mechanisms in order to explain the final
product distributions | es_ES |
dc.format.mimetype | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
dc.source | Materials 5(1), 121-134 (2012) | es_ES |
dc.subject | Zeolite β | es_ES |
dc.subject | Ion exchange | es_ES |
dc.subject | Characterization | es_ES |
dc.subject | Acidity | es_ES |
dc.subject | Pyridine | es_ES |
dc.subject | Acetonitrile | es_ES |
dc.subject | Acetone conversion | es_ES |
dc.subject | Hydrocarbons | es_ES |
dc.subject | Isobutene | es_ES |
dc.subject | Mesitylene | es_ES |
dc.title | Metal-Exchanged β Zeolites as Catalysts for the Conversion of Acetone to Hydrocarbons | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.3390/ma5010121 | es_ES |
dc.relation.projectID | Gobierno de España. MAT2010-18778 | es_ES |
dc.relation.projectID | Junta de Andalucía. FQM-6181 | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |