文献类型：期刊文献

英文题名：Self-Reconstruction of Sulfate-Terminated Copper Oxide Nanorods for Efficient and Stable 5-Hydroxymethylfurfural Electrooxidation

作者：Fan, Ziyi[1];Yang, Qianqian[2];Zhang, Wenjun[1];Wen, Huiming[1];Yuan, Haiyang[2];He, Jing[3];Yang, Hua Gui[2];Chen, Zupeng[1]

机构：[1]Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem & Mat, Nanjing 210037, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[3]Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

年份：2023

卷号：23

期号：23

起止页码：11314

外文期刊名：NANO LETTERS

收录：;EI(收录号：20235015226033);WOS:【SCI-EXPANDED(收录号:WOS:001141630500001)】；

基金：This work was supported by the National Key Research and Development Program of China (2023YFD2200505), National Natural Science Foundation of China (22205113, 22202105), Natural Science Foundation of Jiangsu Province (BK20210626, BK20210608); the Natural Science Foundation of Jiangsu Higher Education Institutions of China (21KJB150027, 21KJA150003), the China Postdoctoral Science Foundation (2022M711645), and the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX23_1171).

语种：英文

外文关键词：electrooxidation; biomass valorization; 5-hydroxymethylfurfuraloxidation; 2,5-furandicarboxylic acid; self-reconstruction

摘要：The electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) has been regarded as a viable alternative to sustainable biomass valorization. However, the transformation of the catalysts under harsh electrooxidation conditions remains controversial. Herein, we confirm the self-construction of cuprous sulfide nanosheets (Cu2S NSs) into sulfate-terminated copper oxide nanorods (CuO-SO42- NRs) during the first-cycle of the HMFOR, which achieves a near-quantitative synthesis of 2,5-furandicarboxylic acid (FDCA) with a >99.9% yield and faradaic efficiency without deactivation in 15 successive cycles. Electrochemical impedance spectroscopies confirm that the surface SO42- effectively reduces the onset potential for HMFOR, while in situ Raman spectroscopies identify a reversible transformation from Cu-II-O to Cu-III-OOH in HMFOR. Furthermore, density functional theory calculations reveal that the surface SO42- weakens the Cu-OH bonds in CuOOH to promote the rate-determining step of its coupling with the C atom in HMF-H* resulting from HMF hydrogenation, which synergistically enhances the catalytic activity of CuO-SO42- NRs toward HMF-to-FDCA conversion.