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Selective room-temperature transformation of methane to C1 Oxygenates by deep UV Photolysis over zeolites

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Selective room-temperature transformation of methane to C1 Oxygenates by deep UV Photolysis over zeolites

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dc.contributor.author Sastre Calabuig, Francesc es_ES
dc.contributor.author Fornes Seguí, Vicente es_ES
dc.contributor.author Corma Canós, Avelino es_ES
dc.contributor.author García Gómez, Hermenegildo es_ES
dc.date.accessioned 2013-05-08T10:34:14Z
dc.date.issued 2011-11
dc.identifier.issn 0002-7863
dc.identifier.uri http://hdl.handle.net/10251/28670
dc.description.abstract [EN] Methane can directly be transformed into liquid C 1 oxygenated products with selectivities above 95% at 13% conversion by deep UV photocatalysis, in the presence of H 2O and air. Pure silica zeolites, and more specifically, beta zeolite with a large number of internal silanol groups is active and selective, while amorphous silica with no micropores is much less efficient. Irradiation produces the homolytic cleavage of surface hydroxyl groups, leading to silyloxyl radicals that will generate methyl radicals from methane. The selectivity arises from the occurrence of the reaction in a confined space restricting the mobility of the radical intermediates that will be mostly attached to the solid surface. Energy consumption of the process is in the order of 7.2 Gcal ¿ mol -1 that compares very favorably with the energy required for transforming methane to synthesis gas (15.96 Gcal ¿ mol -1). © 2011 American Chemical Society. es_ES
dc.description.sponsorship Financial support by the Spanish Ministry of Science and Innovation (MICINN Grants CTQ-2009-0585 and CONSOLIDER INGENIO MULTICAT) is gratefully acknowledged. en_EN
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation info:eu-repo/grantAgreement/MICINN//CTQ-2009-0585 es_ES
dc.relation.ispartof Journal of the American Chemical Society es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Amorphous silica es_ES
dc.subject Beta zeolite es_ES
dc.subject Confined space es_ES
dc.subject Deep uv es_ES
dc.subject Homolytic cleavage es_ES
dc.subject Methyl radical es_ES
dc.subject Micropores es_ES
dc.subject Oxygenated products es_ES
dc.subject Pure silica zeolites es_ES
dc.subject Room temperature es_ES
dc.subject Silanol groups es_ES
dc.subject Solid surface es_ES
dc.subject Surface hydroxyl groups es_ES
dc.subject Carbon monoxide es_ES
dc.subject Energy utilization es_ES
dc.subject Methane es_ES
dc.subject Photocatalysis es_ES
dc.subject Photolysis es_ES
dc.subject Reaction intermediates es_ES
dc.subject Silica es_ES
dc.subject Silicate minerals es_ES
dc.subject Synthesis (chemical) es_ES
dc.subject Synthesis gas es_ES
dc.subject Zeolites es_ES
dc.subject Liquid methane es_ES
dc.subject C1 oxygenate es_ES
dc.subject Oxygen derivative es_ES
dc.subject Silanol es_ES
dc.subject Silicate es_ES
dc.subject Unclassified drug es_ES
dc.subject Zeolite es_ES
dc.subject Article es_ES
dc.subject Energy consumption es_ES
dc.subject Micropore filter es_ES
dc.subject Oxygenation es_ES
dc.subject Ultraviolet radiation es_ES
dc.subject Oxygen es_ES
dc.subject Temperature es_ES
dc.subject Ultraviolet Rays es_ES
dc.subject.classification QUIMICA ORGANICA es_ES
dc.title Selective room-temperature transformation of methane to C1 Oxygenates by deep UV Photolysis over zeolites es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1021/ja204559z
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.description.bibliographicCitation Sastre Calabuig, F.; Fornes Seguí, V.; Corma Canós, A.; García Gómez, H. (2011). Selective room-temperature transformation of methane to C1 Oxygenates by deep UV Photolysis over zeolites. Journal of the American Chemical Society. 133(43):17257-17261. doi:10.1021/ja204559z es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1021/ja204559z es_ES
dc.description.upvformatpinicio 17257 es_ES
dc.description.upvformatpfin 17261 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 133 es_ES
dc.description.issue 43 es_ES
dc.relation.senia 209441
dc.identifier.pmid 21939273
dc.contributor.funder Ministerio de Ciencia e Innovación


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