Fig. 2: Catalytic performance of Co3O4-250 in the hydrogenolysis of HMF to DMF.

a Comparison of the catalytic performances of the state-of-the-art catalysts for the hydrogenolysis of HMF to DMF. A summary of the productivities of representative noble-metal catalysts (purple circles), non-noble-metal catalysts (blue circles), Co3O4-250. Full data is shown in Table S1. (1) Ru-doped hydrotalcite25; (2) Ru/Co3O47; (3) RuCo/CoOx26; (4) Ru/CoFe-LDO27; (5) Pt1/Co28; (6) Pt/rGO29; (7) PtCo@HCS10; (8) Pd-OMD1/Ni-OMD130; (9) Pd/C/Zn31; (10) Raney Co32; (11) Ni/C33; (12) Ni/LaFeO334; (13) Ni-Co oxides8; (14) Ni-Co/C35; (15) 2%Ni-20%Co/C36; (16) Ag-Co@C37; (17) Co-CoOx38; (18) Co/Mix-ZrO239; (19) CuZn40; (20) Cu-Ni/Al2O341; (21) CuNi/TiO242; (22) Cu/Fe2O3-Al2O311. b Catalytic performance and stability of the hydrogenolysis of HMF to DMF. Reaction conditions: 130 °C, 1 MPa of H2, 26.6 h−1 WHSV and 30 mL min−1 H2 gas flow rate.