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

  • Dades identificatives

    Identificador: imarina:9219121
    Autors:
    Gebretsadik, Fiseha BogaleRuiz-Martinez, JavierGonzalez, Maria DoloresSalagre, PilarCesteros, Yolanda
    Resum:
    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.
  • Altres:

    Autor segons l'article: Gebretsadik, Fiseha Bogale; Ruiz-Martinez, Javier; Gonzalez, Maria Dolores; Salagre, Pilar; Cesteros, Yolanda;
    Departament: Química Física i Inorgànica
    Autor/s de la URV: Cesteros Fernández, Yolanda / González Candela, Maria Dolores / Salagre Carnero, María Pilar
    Paraules clau: 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
    Resum: 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.
    Àrees temàtiques: 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
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: mdolores.gonzalez@urv.cat pilar.salagre@urv.cat yolanda.cesteros@urv.cat
    Identificador de l'autor: 0000-0003-3257-2022 0000-0002-5439-9358
    Data d'alta del registre: 2024-07-27
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://pubs.rsc.org/en/content/articlelanding/2021/dt/d1dt01189h
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referència a l'article segons font original: Dalton Transactions. 50 (26): 9198-9207
    Referència 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 de l'article: 10.1039/d1dt01189h
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2021
    Tipus de publicació: Journal Publications
  • Paraules clau:

    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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