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  

作　　者：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 

机构地区：[1]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 [2]BiomassChem Group,Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500,Yunnan,China [3]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

出　　处：《Journal of Energy Chemistry》2022年第12期95-108,I0004,共15页能源化学（英文版）

基　　金：funding supported by the National Natural Science Foundation of China(22078275);the Key-Area Research and Development Program of Guangdong Province(2020B0101070001);the Natural Science Foundation of Fujian Province of China(2021H0009);the Petro China Innovation Foundation(2019D-5007-0413)。

摘　　要：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 outstanding FDMC yield of 93%in a batch reactor(base-free,80℃,2 bar O_(2),4 h).Interestingly,CoFe-NC also gave a high FDMC yield of 91%under continuous-flow conditions for 80 h(5 bar O_(2),80℃,GHSV 1320 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 intensity of Co-N_(x)species and basicity of the catalyst,which endowed CoFe-NC with improved O_(2)activation capacity and enhanced dehydrogenation activity for the oxidation-esterification of HMF.This work delineates 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.

关 键 词：5-HYDROXYMETHYLFURFURAL Furan-2 5-dimethylcarboxylate Oxidation-esterification CATALYSIS Co-N_(x)sites 

分 类 号：TQ251.1[化学工程—有机化工] TQ426