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A monolithic catalyst Au-TiO2-C(N)which was composed of Au/TiO2 nanoparticles and biomass-derived nitrogen-doped porous carbons with hierarchical pores was prepared by the impregnation-reduction method and examined for the oxidation of 5-hydroxymethylfurfural(HMF)to 2,5-furandicarboxylic acid(FDCA)in alkaline aqueous solutions under 1 Mpa pressure of oxygen.