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Lattice Distortions Promoting the In-Depth Reconstruction of Ni-Based Electrocatalysts with Enriched Oxygen Vacancies for the Electrochemical Oxidation of 5-Hydroxymethylfurfural toward 2,5-Furandicarboxylic Acid
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    Lattice Distortions Promoting the In-Depth Reconstruction of Ni-Based Electrocatalysts with Enriched Oxygen Vacancies for the Electrochemical Oxidation of 5-Hydroxymethylfurfural toward 2,5-Furandicarboxylic Acid
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    • Yuanxin Kou
      Yuanxin Kou
      Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, No. 8 Shangsan Road, Fuzhou 350007, China
      Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
      More by Yuanxin Kou
    • Fanan Wang
      Fanan Wang
      Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou 350118, Fujian, China
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    • Yun Lin
      Yun Lin
      Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, No. 8 Shangsan Road, Fuzhou 350007, China
      Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
      More by Yun Lin
    • Di Liu
      Di Liu
      Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou 350118, Fujian, China
      More by Di Liu
    • Mengtao Li
      Mengtao Li
      Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou 350118, Fujian, China
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    • Yan Zhang
      Yan Zhang
      Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, No. 8 Shangsan Road, Fuzhou 350007, China
      Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
      More by Yan Zhang
    • Wenting Wen
      Wenting Wen
      Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou 350118, Fujian, China
      More by Wenting Wen
    • Junhong Huang
      Junhong Huang
      Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, No. 8 Shangsan Road, Fuzhou 350007, China
      Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
    • Rengui Weng
      Rengui Weng
      Institute of Biology and Chemistry, Fujian University of Technology, Fuzhou 350118, Fujian, China
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    • Gang Xu*
      Gang Xu
      Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, No. 8 Shangsan Road, Fuzhou 350007, China
      Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
      *Email: [email protected]
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    Inorganic Chemistry

    Cite this: Inorg. Chem. 2025, 64, 4, 1666–1676
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    https://doi.org/10.1021/acs.inorgchem.4c03764
    Published January 21, 2025
    Copyright © 2025 American Chemical Society

    Abstract

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    The electrocatalytic 5-hydroxymethylfurfural (HMF) oxidation reaction (HMFOR) toward 2,5-furandicarboxylic acid (FDCA) has been considered a promising approach for the substitution of the energy-consuming and hazardous oxygen evolution reaction and for the valorization of renewable biomass. However, it is limited by the susceptibility of HMF to the oxidative environment and requires efficient electrocatalysts. Herein, a NiMo complex (NiMo–N) is provided as the precatalyst for the HMFOR, exhibiting favorable performances with a current density of 450 mA·cm–2 achieved at an anodic potential of 1.4 V vs RHE (similarly hereinafter) with 50 mmol/L (mM) HMF and over 95% HMF conversion and FDCA FE for at least five cycles. Combined with quasi situ and in situ analysis, it is confirmed that the extensive lattice distortions in the precatalyst facilitate the in-depth reconstruction, increasing the accessible Ni sites and defective oxygen vacancies (Ov), which would promptly convert to high-valence Ni and active O species during the reaction. The improved performance is then attributed to the incorporation of the improved chemisorption and dehydrogenation ability of HMF by the as-evolved active sites.

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    Supporting Information

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.inorgchem.4c03764.

    • SEM images of NiMo-N and NiMo-O, HRTEM images of NiMo-N and NiMo-O, XRD pattern of NiMo-U, element mapping and distribution by SEM-EDS over NiMo-U, NiMo-O, and NiMo-N, and ATR-FTIR spectra on NiMo-N and NiMo-O (PDF)

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    Inorganic Chemistry

    Cite this: Inorg. Chem. 2025, 64, 4, 1666–1676
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.inorgchem.4c03764
    Published January 21, 2025
    Copyright © 2025 American Chemical Society

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