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Graphene Film-Supported Oriented 1.1.1 Gold(0) Versus 2.0.0 Copper(I) Nanoplatelets as Very Efficient Catalysts for Coupling Reactions

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Graphene Film-Supported Oriented 1.1.1 Gold(0) Versus 2.0.0 Copper(I) Nanoplatelets as Very Efficient Catalysts for Coupling Reactions

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dc.contributor.author Candu, Natalia es_ES
dc.contributor.author Simion, Andrada es_ES
dc.contributor.author Coman, Simona M. es_ES
dc.contributor.author Primo Arnau, Ana Maria es_ES
dc.contributor.author Esteve-Adell, Iván es_ES
dc.contributor.author Parvulescu, Vasile I. es_ES
dc.contributor.author García Gómez, Hermenegildo es_ES
dc.date.accessioned 2019-06-08T20:02:29Z
dc.date.available 2019-06-08T20:02:29Z
dc.date.issued 2018 es_ES
dc.identifier.issn 1022-5528 es_ES
dc.identifier.uri http://hdl.handle.net/10251/121821
dc.description.abstract [EN] Few-layered graphene-supported 1.1.1 and 2.0.0 oriented Au and Cu2O nanoplatelets were prepared by one-step pyrolysis of the corresponding metal salts embedded in chitosan at 900 degrees C under inert atmosphere. These nanometric films containing oriented nanoplatelets were investigated in a series of reactions as Ullmann-type homocoupling, C-N cross-coupling and Michael addition. The catalysts exhibited turnover numbers (TONs) three to six ord(e)rs of magnitude higher than those of analogous graphene-supported unoriented metal nanoparticles. In addition it has been found that oriented Cu2O and Au nanoplatelets grafted on defective graphene also exhibit activity to promote the Michael addition of compounds with active methylene and methine hydrogens to alpha,beta-conjugated ketone. An exhaustive characterization of these materials using spectroscopic and electron microscopy analyses has been carried out. CO2 thermoprogrammed desorption measurements show that films of these two graphene supported catalysts exhibit some basicity that can explain their activity to promote Michael addition. es_ES
dc.description.sponsorship Financial support by the Spanish Ministry of Economy and Competitiveness (Severo Ochoa and CTQ2015-69153-CO2-R1) and Generalitat Valenciana (Prometeo 2017-083) is gratefully acknowledged. I.E.-A. and A.P thanks the Spanish Ministry for a postgraduate scholarship and for a Ramon y Cajal research associate contract, respectively. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Topics in Catalysis es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Heterogeneous catalysis es_ES
dc.subject Graphene as support es_ES
dc.subject Copper(I) oxide nanoparticles es_ES
dc.subject Gold(0) nanoparticles es_ES
dc.subject Coupling reactions es_ES
dc.subject Michael addition es_ES
dc.subject.classification QUIMICA ORGANICA es_ES
dc.title Graphene Film-Supported Oriented 1.1.1 Gold(0) Versus 2.0.0 Copper(I) Nanoplatelets as Very Efficient Catalysts for Coupling Reactions es_ES
dc.type Artículo es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.1007/s11244-018-1043-x es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//CTQ2015-69153-C2-1-R/ES/EXPLOTANDO EL USO DEL GRAFENO EN CATALISIS. USO DEL GRAFENO COMO CARBOCATALIZADOR O COMO SOPORTE/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//PROMETEO%2F2017%2F083/ es_ES
dc.rights.accessRights Abierto es_ES
dc.date.embargoEndDate 2019-09-01 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.description.bibliographicCitation Candu, N.; Simion, A.; Coman, SM.; Primo Arnau, AM.; Esteve-Adell, I.; Parvulescu, VI.; García Gómez, H. (2018). Graphene Film-Supported Oriented 1.1.1 Gold(0) Versus 2.0.0 Copper(I) Nanoplatelets as Very Efficient Catalysts for Coupling Reactions. Topics in Catalysis. 61(14):1449-1457. https://doi.org/10.1007/s11244-018-1043-x es_ES
dc.description.accrualMethod S es_ES
dc.relation.conferencename 13th European Congress on Catalysis (EuropaCAT 2017) es_ES
dc.relation.conferencedate Agosto 27-31,2017 es_ES
dc.relation.conferenceplace Florence, Italy es_ES
dc.relation.publisherversion http://doi.org/10.1007/s11244-018-1043-x es_ES
dc.description.upvformatpinicio 1449 es_ES
dc.description.upvformatpfin 1457 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 61 es_ES
dc.description.issue 14 es_ES
dc.relation.pasarela S\382628 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES
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