Articles producció científica> Química Física i Inorgànica

Controlled One-pot Synthesis of PdAg Nanoparticles and Their Application in the Semi-hydrogenation of Acetylene in Ethylene-rich Mixtures

  • Datos identificativos

    Identificador: imarina:9261340
    Autores:
    Delgado, Jorge ABenkirane, OliviaLachaux, SuzanneClaver, CarmenFerre, JoanCurulla-Ferre, DanielGodard, Cyril
    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.
  • Otros:

    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
  • Palabras clave:

    Biomaterials,Chemistry, Multidisciplinary,Energy Engineering and Power Technology,Materials Chemistry,Materials Science, Multidisciplinary,Nanoscience & Nanotechnology,Renewable Energy, Sustainability and the Environment
    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
    Renewable energy, sustainability and the environment
    Nanoscience & nanotechnology
    Materials science, multidisciplinary
    Materials chemistry
    Energy engineering and power technology
    Chemistry, multidisciplinary
    Biomaterials
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