Autor según el artículo: Delgado, Jorge A; Benkirane, Olivia; Lachaux, Suzanne; Claver, Carmen; Ferre, Joan; Curulla-Ferre, Daniel; Godard, Cyril
Departamento: Química Física i Inorgànica
Autor/es de la URV: Claver Cabrero, Maria del Carmen Orosia / Ferré Baldrich, Joan / Godard, Cyril
Palabras clave: Selective hydrogenation Pdag nanoparticles Hhdma Bimetallic Acetylene in ethylene rich mixtures selective hydrogenation reduction performance pdag nanoparticles palladium nanoparticles nanocatalysts hhdma displacement design carbon bimetallic catalysts ag acetylene in ethylene rich mixtures
Resumen: In the present paper, we report the synthesis of highly functionalized nanomaterials carefully nanoengineered to catalyze the semi-hydrogenation of acetylene in ethylene-rich mixtures. Surface functionalization and structure modification of a series of bimetallic PdAg nanoparticles was performed using HHDMA as stabilizer and alloying the active palladium phase with silver. Bimetallic PdAg NPs with adjustable Pd/Ag ratio were prepared in water through a novel one-pot methodology using hydrogen gas as a benign reducing agent and cyanide as additive. UV-Vis studies indicated the formation of the bimetallic nanostructures through a sequential displacement-galvanic reduction process mediated by cyanide. The series of colloidal NPs were deposited onto alumina and successfully applied as catalysts in the selective hydrogenation of acetylene in ethylene rich mixtures. Geometric and electronic promotion of Ag over Pd based catalysts was evidenced by the increase of the ethylene selectivity with the Ag content. The reactivity of these materials demonstrated the applicability of HHDMA stabilized NPs in a gas phase reaction of industrial interest and the success of combining several strategies for the enhancement of the alkene selectivity.
Áreas temáticas: Renewable energy, sustainability and the environment Nanoscience & nanotechnology Materials science, multidisciplinary Materials chemistry Energy engineering and power technology Chemistry, multidisciplinary Biomaterials
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: cyril.godard@urv.cat joan.ferre@urv.cat carmen.claver@urv.cat
Identificador del autor: 0000-0001-5762-4904 0000-0001-6240-413X 0000-0002-2518-7401
Fecha de alta del registro: 2024-10-12
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://onlinelibrary.wiley.com/doi/abs/10.1002/cnma.202200058
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Chemnanomat. 8 (5): e202200058-
Referencia de l'ítem segons les normes APA: Delgado, Jorge A; Benkirane, Olivia; Lachaux, Suzanne; Claver, Carmen; Ferre, Joan; Curulla-Ferre, Daniel; Godard, Cyril (2022). Controlled One-pot Synthesis of PdAg Nanoparticles and Their Application in the Semi-hydrogenation of Acetylene in Ethylene-rich Mixtures. Chemnanomat, 8(5), e202200058-. DOI: 10.1002/cnma.202200058
DOI del artículo: 10.1002/cnma.202200058
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2022
Tipo de publicación: Journal Publications