Author, as appears in the article.: Patarroyo, Javier; Delgado, Jorge A; Merkoci, Florind; Genc, Aziz; Sauthier, Guillaume; Llorca, Jordi; Arbiol, Jordi; Bastus, Neus G; Godard, Cyril; Claver, Carmen; Puntes, Victor
Department: Química Física i Inorgànica
URV's Author/s: Claver Cabrero, Maria del Carmen Orosia / Godard, Cyril
Keywords: Semihydrogenation Selective hydrogenation Performance Nanostructures Nanoparticles Nanocatalysts Growth Gold Design Acetylene
Abstract: In the present work, hollow PdAg-CeO2 heterodimer nanocrystals (NCs) were prepared and tested as catalysts for the selective hydrogenation of alkynes. These nanostructures combine for the first time the beneficial effect of alloying Pd with Ag in a single NC hollow domain with the formation of active sites at the interface with the CeO2 counterpart in an additive manner. The PdAg-CeO2 NCs display excellent alkene selectivity for aliphatic alkynes. For the specific case of hydrogenation of internal alkynes such as 4-octyne, very low over-hydrogenation and isomerization products were observed over a full conversion regime, even after prolonged reaction times. These catalytic properties were remarkably superior in comparison to standard catalysts. The promotion of Ag on the moderation of the reactivity of the Pd phase, in combination with the creation of interfacial sites with the CeO2 moiety in the same nanostructure, is pointed as the responsible of such a remarkable catalytic performance.
Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Psicología Odontología Nutrição Multidisciplinary sciences Multidisciplinary Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Matemática / probabilidade e estatística Letras / linguística Interdisciplinar Geografía Geociências Farmacia Engenharias iv Engenharias iii Engenharias ii Enfermagem Educação física Educação Economia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Biotecnología Biodiversidade Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 20452322
Author's mail: cyril.godard@urv.cat carmen.claver@urv.cat
Author identifier: 0000-0001-5762-4904 0000-0002-2518-7401
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.nature.com/articles/s41598-019-55105-x
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Scientific Reports. 9 (18776): 18776-
APA: Patarroyo, Javier; Delgado, Jorge A; Merkoci, Florind; Genc, Aziz; Sauthier, Guillaume; Llorca, Jordi; Arbiol, Jordi; Bastus, Neus G; Godard, Cyril; C (2019). Hollow PdAg-CeO2 heterodimer nanocrystals as highly structured heterogeneous catalysts. Scientific Reports, 9(18776), 18776-. DOI: 10.1038/s41598-019-55105-x
Article's DOI: 10.1038/s41598-019-55105-x
Entity: Universitat Rovira i Virgili
Journal publication year: 2019
Publication Type: Journal Publications