000079522 001__ 79522
000079522 005__ 20191127155459.0
000079522 0247_ $$2doi$$a10.1021/acsomega.8b02193
000079522 0248_ $$2sideral$$a109008
000079522 037__ $$aART-2018-109008
000079522 041__ $$aeng
000079522 100__ $$aMollar-Cuni, Andrés
000079522 245__ $$aStabilization of nanoparticles produced by hydrogenation of palladium-n-heterocyclic carbene complexes on the surface of graphene and implications in catalysis
000079522 260__ $$c2018
000079522 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079522 5203_ $$aPalladium nanoparticles (NPs) have been obtained by decomposition of well-defined palladium complexes noncovalently anchored onto the surface of reduced graphene oxide. Morphological analysis by microscopy showed the presence of small palladium NPs homogeneously distributed on the support. Characterization by X-ray photoelectron spectroscopy confirmed that palladium NPs contain Pd(2+) and Pd(0) oxidation states and the presence of N-heterocyclic carbene and bromo ligands. The catalytic properties of the NPs with and without the support have been evaluated in the hydrogenation of alkynes. Supported palladium NPs showed increased activity versus the nonsupported ones and could be recycled up to 10 times without the loss of catalytic activity. The composition of the palladium NPs is different for each catalytic cycle indicating a dynamic process and the formation of different catalytic active species. On the contrary, the unsupported palladium NPs showed limited activity caused by decomposition and could not be recycled. The role of the support has been investigated. The results indicate that the support influences the stability of palladium NPs.
000079522 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/E31-17R$$9info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-69153-C2-2-R$$9info:eu-repo/grantAgreement/ES/MINECO/FPU15-03011
000079522 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000079522 590__ $$a2.584$$b2018
000079522 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b75 / 172 = 0.436$$c2018$$dQ2$$eT2
000079522 592__ $$a0.754$$b2018
000079522 593__ $$aChemistry (miscellaneous)$$c2018$$dQ1
000079522 593__ $$aChemical Engineering (miscellaneous)$$c2018$$dQ1
000079522 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000079522 700__ $$aVentura-Espinosa, David
000079522 700__ $$0(orcid)0000-0001-9193-3874$$aMartín, Santiago$$uUniversidad de Zaragoza
000079522 700__ $$0(orcid)0000-0002-5229-2717$$aMayoral, Álvaro
000079522 700__ $$aBorja, Pilar
000079522 700__ $$aMata, José A.
000079522 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000079522 773__ $$g3, 11 (2018), 15217-15228$$pACS Omega$$tACS Omega$$x2470-1343
000079522 8564_ $$s915857$$uhttps://zaguan.unizar.es/record/79522/files/texto_completo.pdf$$yVersión publicada
000079522 8564_ $$s107886$$uhttps://zaguan.unizar.es/record/79522/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000079522 909CO $$ooai:zaguan.unizar.es:79522$$particulos$$pdriver
000079522 951__ $$a2019-11-27-15:49:36
000079522 980__ $$aARTICLE