【摘 要】
：
The selective aerobic oxidation of biomass-derived 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid(FDCA,a potential renewable substitution of fossil-based terephthalic acid to produce polyethylene 2,5-furandicarboxylate plastic)is an appealing trans
【机 构】
：
College of Chemistry and Chemical Engineering,Yantai University,30 Qingquan Road,Yantai 264005,Shand
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The selective aerobic oxidation of biomass-derived 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid(FDCA,a potential renewable substitution of fossil-based terephthalic acid to produce polyethylene 2,5-furandicarboxylate plastic)is an appealing transformation for constructing eco-friendly and sustain-able chemical processes.Au supported catalysts have showed encouraging performances for this well-received conversion,whose catalytic behavior was greatly affected by the adopted support derived from the existence of metal-support interactions.Herein,a series of Mg-Beta zeolites were hydrothermally synthesized via developed structural reconstruction,which were employed as basic supports for Au cat-alysts to construct bifunctional catalysts.The relationship between structure(Au particle size,basicity within zeolites and Auδ+contents)and FDCA yield was concretely established.The conclusion was made that the utilization of Mg-Beta zeolites with strong basicity as the support could not only improve the FDCA yield but also decrease the amount of additional base.Furthermore,the possible reaction mecha-nism was also proposed via tracking time-dependent variations of corresponding organics and controlled experiment.This work provides some guidance for rationally designing multifunctional catalysts in the view of integrating metal catalysts with metallosilicate zeolites,which was beneficial to the catalytic upgrading of organic compounds with multiple functional groups.
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