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2,5-Bis(hydroxymethyl)furan (BHMF) as well as furfuryl alcohol (FFA) are considered as highly valuable biomass-derived alcohols resembling aromatic monomers in polymer synthesis. Herein, a series of cobaltic nitrogen-doped carbon (CoÀ NC) catalysts calcinated at different temperatures were synthesized and tested for the solvent-free hydrogenation of 5hydroxymethylfurfural (HMF) to prepare BHMF. It was found that the CoÀ NC catalyst calcinated at 600 °C (CoÀ NC-600) exhibited a superior catalytic activity in the hydrogenation reaction mainly due to the doping of graphitic N, which probably facilitated the polarization of H 2 to afford H + and H À .Consequently, CoÀ NC-600 offered a high BHMF/FFA yield greater than 90 % with a nearly complete conversion of HMF/ furfural (FF) at the optimal conditions (80 °C, 4 h, and 5 MPa H 2 ). After the hydrogenation reaction, CoÀ NC catalyst was facilely recycled by magnetic separation, and the obtained BHMF/FFA was then successfully transformed into hypercrosslinked polymers with an excellent CO 2 /H 2 storage capacity comparable to aromatic hydroxymethyl polymers. Therefore, this is a novel and facile two-step pathway for the conversion of biomass-derived HMF/FF towards functional polymers from both industrial and environmental perspectives.