fig11

Figure 11. (A) Route used to prepare the Pt₁Ni/C catalyst (up) and the monomer yield and main lignin-derived monomers obtained. Reaction conditions: 0.1 g birch sawdust, 0.02 g catalyst, 5 mL MeOH, 5 MPa H₂, 200 ^oC, and 18 h (down)^[85]. Copyright 2019 Elsevier; (B) Schematic illustration of the confinement strategy to synthesize the Mo₁Al/MgO catalyst for selective lignin disassembly over synergetic Mo single-atom and Al Lewis acid sites (up). And Lignin depolymerization performances at different reaction conditions in methanol under N₂ (down)^[86]. Copyright 2023 American Chemical Society; (C) Schematic diagram of CEL catalytic transfer hydrogenolysis over 1.0Ni/CeO₂-S catalyst^[90]. Copyright 2022 Elsevier. CEL: Cellulolytic enzyme lignin.