Autor segons l'article: Sanchez-Resa, Daniel; Delgado, Jorge A.; Fernandez-Martinez, Maria Dolores; Didelot, Chloe; De Mallmann, Aimery; Szeto, Kai C.; Taoufik, Mostafa; Claver, Carmen; Godard, Cyril;
Departament: Química Física i Inorgànica
Autor/s de la URV: Claver Cabrero, Maria del Carmen Orosia / Fernández Martínez, María Dolores / Godard, Cyril
Paraules clau: Structure sensitivity Sites Selective hydrogenation Phenylacetylene Pdcu Palladium nanoparticles Nanoparticles Nanocomposite Nanocatalysts Functionalized silica Design Catalysts Carbon nanotubes Alkyne semi-hydrogenation Acetylene
Resum: Triphenylphosphine stabilized Pd, Cu and PdCu nanocatalysts supported on carbon nanotubes (CNTs) or phosphorus functionalised silica (P-SiO2) were prepared via a one-pot methodology. The series of P-SiO2 supported catalysts evidenced metal particle sizes of metallic nanoparticles (M-NPs) between 1 and 2.4 nm, smaller than their equivalents on CNTs (2.4-2.6 nm). Such a difference in particle size as a function of the support and the metallic composition indicated the more pronounced mediation of the CNTs support during the formation of the M-NPs when compared to the P-SiO2 support. The series of supported catalysts were tested in the semi-hydrogenation of alkynes providing differences in reactivity which might be correlated with the size and composition of the M-NPs and the nature of corresponding support. The carbon supported catalysts displayed in general higher activities than those supported on silica and the bimetallic catalyst PdCu/CNTs were the most selective for the case of alkyl substituted alkynes. This catalyst could moreover be recycled several times without loss of activity nor selectivity.
Àrees temàtiques: Química Medicina i Materiais Interdisciplinar Inorganic chemistry Farmacia Engenharias iii Engenharias ii Ciências biológicas ii Ciências biológicas i Chemistry, inorganic & nuclear Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: carmen.claver@urv.cat cyril.godard@urv.cat mariadolores.fernandez@estudiants.urv.cat mariadolores.fernandez@estudiants.urv.cat
Identificador de l'autor: 0000-0002-2518-7401 0000-0001-5762-4904 0000-0002-7334-3480 0000-0002-7334-3480
Data d'alta del registre: 2024-02-25
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/ejic.202100806
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: European Journal Of Inorganic Chemistry. 2021 (47): 4970-4978
Referència de l'ítem segons les normes APA: Sanchez-Resa, Daniel; Delgado, Jorge A.; Fernandez-Martinez, Maria Dolores; Didelot, Chloe; De Mallmann, Aimery; Szeto, Kai C.; Taoufik, Mostafa; Clav (2021). Pd, Cu and Bimetallic PdCu NPs Supported on CNTs and Phosphine-Functionalized Silica: One-Pot Preparation, Characterization and Testing in the Semi-Hydrogenation of Alkynes. European Journal Of Inorganic Chemistry, 2021(47), 4970-4978. DOI: 10.1002/ejic.202100806
DOI de l'article: 10.1002/ejic.202100806
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Tipus de publicació: Journal Publications
Repositori URV