Journal
POLYMERS
Volume 15, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/polym15234618
Keywords
hydrodeoxygenation; porous aromatic frameworks; ruthenium catalysts; guaiacol; lignin
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Bifunctional catalysts based on sulfonated porous aromatic frameworks (PAFs) were used in the hydrodeoxygenation (HDO) of lignin-derived compounds. The results showed that this catalytic system promoted partial hydrogenation of lignin-based compounds, providing a promising route to the selective conversion of lignin model compounds.
Bifunctional catalysts are a major type of heterogeneous catalytic systems that have been widely investigated for biomass upgrading. In this work, Ru-catalysts based on sulfonated porous aromatic frameworks (PAFs) were used in the hydrodeoxygenation (HDO) of lignin-derived compounds: guaiacol, veratrole, and catechol. The relationship between the activity of metal nanoparticles and the content of acid sites in synthesized catalysts was studied. Herein, their synergy was demonstrated in the Ru-PAF-30-SO3H/5-COD catalyst. The results revealed that this catalytic system promoted partial hydrogenation of lignin-based compounds to ketones without any further transformations. The design of the Ru-PAF-30-SO3H/5-COD catalytic system opens a promising route to the selective conversion of lignin model compounds to cyclohexanone.
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