Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
50971 | Catalysis Communications | 2012 | 5 Pages |
Hydrodeoxygenation of the lignin monomer guaiacol was performed on the bifunctional catalysts of noble-metals supported on acidic matrices. The catalytic roles of metal nanoparticles and acidic supports were elucidated using the acid-site-measurement-dependent catalysis results, which demonstrated that metals were responsible for the hydrogenation of aromatic rings while metal-deposited acidic supports were indispensable to the deoxygenation of oxygenates. Among various combinations of metals and supports, Rh/SiO2-Al2O3 and Ru/SiO2-Al2O3 exhibited the highest cyclohexane yields.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Catalytic hydrodeoxygenation of lignin monomer guaiacol to cyclohexane. ► Combinations of noble metals and acidic supports for bifunctional catalysts. ► Product distribution analysis on various catalysts. ► Acidity of catalysts is measured by NH3-TPD. ► Hydrodeoxygenation depends more on catalyst acidity. ► The reaction pathway of guaiacol to cyclohexane is suggested.