Tuning Acid-Metal Synergy in <i>m</i>-Cresol Hydrodeoxygenation over Bifunctional Pt/Aluminosilicate Catalysts
James A. Hunns, Lee J. Durndell, Xingguang Zhang, Muxina Konarova, Adam F. Lee, Karen Wilson
Abstract
Strong synergy between proximate Bro̷nsted acid and metal sites over a Pt/amorphous silica–alumina (ASA) catalyst confers striking activity and selectivity enhancements for m -cresol hydrodeoxygenation to methylcyclohexane, a fuel additive and potential liquid organic hydrogen carrier for storing renewable energy. Molecular shuttling back and forth between cooperative acid and metal sites activates m -cresol for consecutive tautomerization, ring hydrogenation, and dehydration, ensuing eventual hydrogenation to methylcyclohexane with a fourfold yield enhancement compared to a physical mix of solid acid and Pt/SiO 2 .
Topics & Concepts
HydrodeoxygenationBifunctionalCatalysisAluminosilicateMetalChemistryInorganic chemistryOrganic chemistrySelectivityCatalysis and Hydrodesulfurization StudiesCatalytic Processes in Materials ScienceCatalysis for Biomass Conversion