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Cu boosting the collaborative effect of Ni and H+ in alloyed NiCu/saponite catalysts for hydrogenolysis of glycidol

  • Datos identificativos

    Identificador: imarina:9219121
    Autores:
    Gebretsadik, Fiseha BogaleRuiz-Martinez, JavierGonzalez, Maria DoloresSalagre, PilarCesteros, Yolanda
    Resumen:
    The effect of copper on various acid saponite supported Ni-Cu bimetallic catalysts, prepared with different Ni : Cu ratios, was studied for the liquid phase hydrogenolysis of glycidol on a batch reactor at 393 and 453 K. Characterization of the catalysts showed that Ni and Cu are in close contact as the XRD measurements evidenced the formation of an alloy. H-2 chemisorption results revealed that the measured metallic area progressively decreased with an increase in the wt% of copper. In the presence of high metal activity (higher Ni wt%), the formation of 1,2-propanediol (1,2-PD) outweighed, while acid activity led to the formation of dimerization and oligomerization products. The addition of Cu and the increase of the reaction temperature decreased the diol formation but boosted the 1,3-PD/1,2-PD ratio. This could be explained by an improvement of the collaborative effect between the metal Ni and the H+ of the saponite. Therefore, the presence of an appropriate amount of Cu allowed the control of the hydrogenation capacity of Ni and enhanced the collaborative effect of Ni and H+ favouring the formation of 1,3-propanediol with respect to 1,2-propanediol.
  • Otros:

    Autor según el artículo: Gebretsadik, Fiseha Bogale; Ruiz-Martinez, Javier; Gonzalez, Maria Dolores; Salagre, Pilar; Cesteros, Yolanda;
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: Cesteros Fernández, Yolanda / González Candela, Maria Dolores / Salagre Carnero, María Pilar
    Palabras clave: Xrd measurements Vinyloxirane Transformation Selective hydrogenolysis Reaction temperature Product Performance Nickel metallography Nickel Metal activity Isomerization Hydrolysis Hydrogenolysis H2-chemisorption Glycerol hydrogenolysis Effect of coppers Cyclic ethers Copper metallography Copper alloys Copper Catalysts Binary alloys Bimetallic catalysts Batch reactors Acid 1,3-propanediol 1 ,3 propanediol 1 ,2-propanediol
    Resumen: The effect of copper on various acid saponite supported Ni-Cu bimetallic catalysts, prepared with different Ni : Cu ratios, was studied for the liquid phase hydrogenolysis of glycidol on a batch reactor at 393 and 453 K. Characterization of the catalysts showed that Ni and Cu are in close contact as the XRD measurements evidenced the formation of an alloy. H-2 chemisorption results revealed that the measured metallic area progressively decreased with an increase in the wt% of copper. In the presence of high metal activity (higher Ni wt%), the formation of 1,2-propanediol (1,2-PD) outweighed, while acid activity led to the formation of dimerization and oligomerization products. The addition of Cu and the increase of the reaction temperature decreased the diol formation but boosted the 1,3-PD/1,2-PD ratio. This could be explained by an improvement of the collaborative effect between the metal Ni and the H+ of the saponite. Therefore, the presence of an appropriate amount of Cu allowed the control of the hydrogenation capacity of Ni and enhanced the collaborative effect of Ni and H+ favouring the formation of 1,3-propanediol with respect to 1,2-propanediol.
    Áreas temáticas: Química Odontología Medicina ii Materiais Interdisciplinar Inorganic chemistry General medicine Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Chemistry, inorganic & nuclear Biotecnología Astronomia / física
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: mdolores.gonzalez@urv.cat pilar.salagre@urv.cat yolanda.cesteros@urv.cat
    Identificador del autor: 0000-0003-3257-2022 0000-0002-5439-9358
    Fecha de alta del registro: 2024-07-27
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://pubs.rsc.org/en/content/articlelanding/2021/dt/d1dt01189h
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Dalton Transactions. 50 (26): 9198-9207
    Referencia de l'ítem segons les normes APA: Gebretsadik, Fiseha Bogale; Ruiz-Martinez, Javier; Gonzalez, Maria Dolores; Salagre, Pilar; Cesteros, Yolanda; (2021). Cu boosting the collaborative effect of Ni and H+ in alloyed NiCu/saponite catalysts for hydrogenolysis of glycidol. Dalton Transactions, 50(26), 9198-9207. DOI: 10.1039/d1dt01189h
    DOI del artículo: 10.1039/d1dt01189h
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2021
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Chemistry, Inorganic & Nuclear,Inorganic Chemistry
    Xrd measurements
    Vinyloxirane
    Transformation
    Selective hydrogenolysis
    Reaction temperature
    Product
    Performance
    Nickel metallography
    Nickel
    Metal activity
    Isomerization
    Hydrolysis
    Hydrogenolysis
    H2-chemisorption
    Glycerol hydrogenolysis
    Effect of coppers
    Cyclic ethers
    Copper metallography
    Copper alloys
    Copper
    Catalysts
    Binary alloys
    Bimetallic catalysts
    Batch reactors
    Acid
    1,3-propanediol
    1 ,3 propanediol
    1 ,2-propanediol
    Química
    Odontología
    Medicina ii
    Materiais
    Interdisciplinar
    Inorganic chemistry
    General medicine
    Farmacia
    Ensino
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Ciências biológicas ii
    Ciências biológicas i
    Ciências ambientais
    Ciências agrárias i
    Chemistry, inorganic & nuclear
    Biotecnología
    Astronomia / física
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