Highly efficient syntheses of 2,5-bis(hydroxymethyl)furan and 2,5-dimethylfuran via the hydrogenation of biomass-derived 5-hydroxymethylfurfural over a nickel–cobalt bimetallic catalyst

Highly efficient Ni–NiO/carbon nanotubes catalysts for the selective transfer hydrogenation of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan

“…Thus, the presence of nickel oxide in the Ni-NiO/CNTs catalyst calcined for 2 h can be attributed to the inadequate reduction. 21 The presence of O, C and Ni was revealed by analyzing the surface state of the catalyst with the help of XPS and the results are in conformity with XRD. Deconvolution of the C 1s peak presents the O-CO, C-O/C-O-C and C-C/CC bonds with binding energies at 289.0, 284.8 and 284.0 eV.…”

“…Thus, the presence of nickel oxide in the Ni–NiO/CNTs catalyst calcined for 2 h can be attributed to the inadequate reduction. 21…”

Highly selective production of the biofuel 2,5-dimethylfuran from 5-hydroxymethylfurfural over Co/N–C catalysts

“…Zhao et al synthesized a magnetically separable bimetallic catalyst (Ni x Co y ) via solid-phase milling. The synergistic catalysis of the hydrogenation sites in the Ni and Co metals and Lewis acid sites of NiO and CoO in this catalyst promoted the conversion of HMF to BHMF and DMF with 93.1% and 80.1% selectivity, respectively, 34 and the complete conversion of HMF.…”

Catalytic Conversion of 5‐Hydroxymethylfurfural to High‐Value Derivatives by Selective Activation of C−O, C=O, and C=C Bonds

“…The possible reaction pathway was also proposed, and the Lewis acid sites in NiO and CoO were confirmed to promote the conversion of HMF to DHMF (Figure 5). [26] Deprotection and further hydrogenation of HMF and its acetal to DHMF were realized over NiÀ Re catalyst. NiRe0.5 was identified as the optimal catalyst and gave 81-89 % yield of DHMF at a concentration of protected HMF of 10-20 wt % in water.…”