Insight into the mechanism of 5-hydroxymethylfurfural electroreduction to 2,5-bis(hydroxymethyl)furan over Cu anchored N-doped carbon nanosheets  

作　　者：Haoran Wu Xinwei Chen Haishan Xu Runlu Yang Xin Wang Junying Chen Zhenbing Xie Liang Wu Yiyong Mai 

机构地区：[1]School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China [2]School of Chemistry and Chemical Engineering,Frontiers Science Center for Transformative Molecules,Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing,Shanghai Jiao Tong University,Shanghai 200240,China [3]Department of Chemistry,Tangshan Normal University,Tangshan 063000,China

出　　处：《Nano Research》2024年第9期7991-7999,共9页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22225501 and 52073173);the Key Research Projects of Universities in Henan Province(No.23A530005);the National Key Laboratory of Biobased Transport Fuel Technology of China(No.KFKT2022002);the Project of Nanyang Collaborative Innovation(No.22XTCX12004,Nanyang Research Institute of Zhengzhou University).

摘　　要：Design of non-noble metal electrocatalysts for biomass conversion to high-value chemicals and understanding the related catalytic mechanisms are of profound significance but have remained a major challenge.Here,we developed a novel biomass-derived electrocatalyst(denoted as Cu/NC),featuring with electron-deficient copper nanoparticles anchored on N-doped carbon nanosheets,for the electrochemical reduction of 5-hydroxymethylfurfural(HMF)to 2,5-bis(hydroxymethyl)furan(BHMF,a vital precursor of functional polymers).The optimized Cu/NC electrocatalyst exhibited an excellent performance with high Faradaic efficiency(89.5%)and selectivity(90.8%)of BHMF at a low concentration of HMF(18.1 mM).Even at a very high HMF concentration(108.6 mM),the Faraday efficiency and selectivity of BHMF could still reach 74.8%and 81.1%,respectively.This performance approached those of the reported noble metal-based electrocatalysts.Mechanism study revealed that the N doping in the Cu/NC catalyst could regulate the electronic structure of Cu,strengthening the adsorption of the HMF carbonyl group,and thus boosting the selectivity of BHMF.Additionally,strong electronic metal-support interactions of Cu and the N-doped carbon support optimized the charge transfer rate,thus promoting the dissociation of water to the active hydrogen(H^(*))species and boosting the reaction kinetic rate of H^(*)and HMF.

关 键 词：biomass 5-HYDROXYMETHYLFURFURAL electrochemical reduction N-doped carbon materials 2 5-bis(hydroxymethyl)furan 

分 类 号：O64[理学—物理化学]