Expediting^(*)OH accumulation kinetics on metal-organic frameworks-derived CoOOH with CeO_(2) “accelerator” for electrocatalytic 5-hydroxymethylfurfural oxidation valorization  

作　　者：Peiyun Zhou Haokun Pan Guangtong Hai Xiang Liu Xiubing Huang Ge Wang 

机构地区：[1]Beijing Advanced Innovation Center for Materials Genome Engineering,Beijing Key Laboratory of Function Materials for Molecule&Structure Construction,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China [2]Department of Chemistry,Tsinghua University,Beijing 100084,China [3]Institute of Zhejiang University-Quzhou,Zhejiang University,Quzhou 324000,Zhejiang,China

出　　处：《Journal of Energy Chemistry》2024年第11期721-732,共12页能源化学（英文版）

基　　金：National Key Research and Development Program of China (2021YFB3500700);National Natural Science Foundation of China (51802015);Fundamental Research Funds for the Central Universities (FRF-EYIT-23-07)。

摘　　要：In this work,nickel foam supported CeO_(2)-modified CoBDC(BDC stands for terephthalic acid linker)metal-organic frameworks(NF/CoBDC@CeO_(2)) are prepared by hydrothermal and subsequent impregnation methods,which can be further transformed to NF/CoOOH@CeO_(2) by reconstruction during the electrocatalytic test.The obtained NF/CoOOH@CeO_(2) exhibits excellent performance in electrocatalytic oxidation of 5-hydroxymethylfurfural(HMF) because the introduction of CeO_(2) can optimize the electronic structure of the heterointerface and accelerate the accumulation of ^(*)OH.It requires only a potential of 1.290 V_(RHE) to provide a current density of 50 mA cm^(-2) in 1.0 M KOH+50 mM HMF,which is 222 mV lower than that required in 1,0 M KOH(1.512 V_(RHE)).In addition,density-functional theory calculation results demonstrate that CeO_(2) biases the electrons to the CoOOH side at the heterointerface and promotes the adsorption of ^(*)OH and ^(*)HMF on the catalyst surface,which lower the reaction energy barrier and facilitate the electrocata lytic oxidation process.

关 键 词：CeO_(2) Metal-organic frameworks 5-Hydroxymethylfurfural oxidation reaction HETEROINTERFACE Reconstruction 

分 类 号：TQ251.11[化学工程—有机化工] TQ426