Developing an efficient and easily available catalyst for the selective conversion of biomass-derived 5-hydroxymethylfurfural(HMF)into furan-2,5-dimethylcarboxylate(FDMC),a valuable biomass-based monomer,remains a high demand but formidable challenge.Herein,a facile strategy for the synthesis of N-doped carbon-supported Co/Fe bimetallic catalyst(CoFe-NC)was developed,which provided an out-standing FDMC yield of 93％in a batch reactor(base-free,80℃,2 bar O2,4 h).Interestingly,CoFe-NC also gave a high FDMC yield of 91％under continuous-flow conditions for 80 h(5 bar O2,80℃,GHSV1320 h-1,LHSV 0.6 h-1,base-free).Notably,it is the first time that a non-noble catalyst gave such a high FDMC yield under continuous-flow conditions.The introduction of Fe could greatly improve both the electron inten-sity of Co-Nx species and basicity of the catalyst,which endowed CoFe-NC with improved O2 activation capacity and enhanced dehydrogenation activity for the oxidation-esterification of HMF.This work delin-eates the efficient strategy on the construction of N-doped carbon-supported non-noble catalyst,which might open a new avenue for developing highly efficient catalyst for FDMC production.

Weizhen Xie;Binglin Chen;Wenlong Jia;Huai Liu;Zheng Li;Shuliang Yang;Xing Tang;Xianhai Zeng;Yong Sun;Xixian Ke;Tianyuan Li;Huayu Fang;Lu Lin

Xiamen Key Laboratory of Clean and High-valued Applications for Biomass,Fujian Engineering and Research Center of Clean and High-valued Technologies for Biomass,College of Energy,Xiamen University,Xiamen 361102,Fujian,China;BiomassChem Group,Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500,Yunnan,China;Key Lab for Sport Shoes Upper Materials of Fujian Province,Fujian Engineering and Research Center for New Functional Fiber Materials(Fujian Huafeng New Material Co.,Ltd.,Putian Dakai New Material Co.,Ltd.),Putian 351144,Fujian,China

能源化学

[1]Weizhen Xie;Binglin Chen;Wenlong Jia;Huai Liu;Zheng Li;Shuliang Yang;Xing Tang;Xianhai Zeng;Yong Sun;Xixian Ke;Tianyuan Li;Huayu Fang;Lu Lin-.Base-free oxidative esterification of 5-hydroxymethylfurfural to furan-2,5-dimethylcarboxylate over n-doped carbon-supported Co/Fe bimetallic catalyst under batch-operation or continuous-flow conditions)[J].能源化学,2022(12):95-108

dimethylcarboxylate,FDMC,GHSV1320,delin,eates

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