Hydrogenation of biobased aldehydes to mono-alcohols using bimetallic catalysts

Giuseppe Bagnato, Michela Signoretto, Cristina Pizzolitto, Federica Menegazzo, Xiaoying Xi, Gert H. ten Brink, Bart J. Kooi, Hero Jan Heeres, Aimaro Sanna

Research output: Contribution to journalArticle

Abstract

A series of monometallic and bimetallic metal catalysts (Pd, Cu, Fe, PdCu, PdFe) supported on ZrO2 (6–8 nm) were synthesized and tested for the hydrogenation of bio-oil model compounds (furfural, vanillin, glucose) under 50 bar H2 at 100 °C. The catalysts were fully characterized and their properties related to their catalytic activity. The bimetallic PdFe and PdCu displayed enhanced catalytic performance compared to the monometallic catalysts for aldehyde hydrogenation (furfural, vanillin, glucose). For the best catalyst, 98% vanillin alcohol (VA) and 65.5% furfuryl alcohol (FA) conversion was obtained for 80 min batch-time. PdFe showed high selectivity toward sorbitol (74%) from glucose, though at low conversion (20%). Overall, we have demonstrated that bimetallic Fe- and Cu-based catalysts promoted by Pd show significantly better performance for the partial hydrogenation of bio-oil model compounds than the corresponding monometallic ones. The better performance of the Pd-doped Fe/Cu catalysts is linked to the presence of smaller and better dispersed Pd nanoparticles (STEM) and their lower acidity (∼90 μmol/g cat) than corresponding monometallic ones (∼167 μmol/g cat).
Original languageEnglish
Pages (from-to)11994–12004
Number of pages11
JournalACS Sustainable Chemistry and Engineering
Volume8
Issue number32
Early online date20 Jul 2020
DOIs
Publication statusPublished - 17 Aug 2020

Keywords

  • hydrogenation
  • heterogeneous catalysis
  • biofuel
  • biorefinery
  • bimetallic Fe-Pd
  • nanoparticles

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  • Cite this

    Bagnato, G., Signoretto, M., Pizzolitto, C., Menegazzo, F., Xi, X., ten Brink, G. H., Kooi, B. J., Heeres, H. J., & Sanna, A. (2020). Hydrogenation of biobased aldehydes to mono-alcohols using bimetallic catalysts. ACS Sustainable Chemistry and Engineering, 8(32), 11994–12004. https://doi.org/10.1021/acssuschemeng.0c02623