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Enhanced electrocatalytic biomass oxidation at low voltage by Ni2+-O-Pd interfaces

Author

Listed:
  • An Pei

    (South China University of Technology)

  • Peng Wang

    (South China University of Technology)

  • Shiyi Zhang

    (South China University of Technology)

  • Qinghua Zhang

    (Chinese Academy of Sciences)

  • Xiaoyi Jiang

    (South China University of Technology)

  • Zhaoxi Chen

    (South China University of Technology)

  • Weiwei Zhou

    (South China University of Technology)

  • Qizhen Qin

    (South China University of Technology)

  • Renfeng Liu

    (South China University of Technology)

  • Ruian Du

    (South China University of Technology)

  • Zhengjian Li

    (South China University of Technology)

  • Yongcai Qiu

    (South China University of Technology)

  • Keyou Yan

    (South China University of Technology)

  • Lin Gu

    (Chinese Academy of Sciences
    Tsinghua University)

  • Jinyu Ye

    (Xiamen University)

  • Geoffrey I. N. Waterhouse

    (The University of Auckland)

  • Wei-Hsiang Huang

    (National Synchrotron Radiation Research Center (NSRRC))

  • Chi-Liang Chen

    (National Synchrotron Radiation Research Center (NSRRC))

  • Yun Zhao

    (South China University of Technology)

  • Guangxu Chen

    (South China University of Technology)

Abstract

Challenges in direct catalytic oxidation of biomass-derived aldehyde and alcohol into acid with high activity and selectivity hinder the widespread biomass application. Herein, we demonstrate that a Pd/Ni(OH)2 catalyst with abundant Ni2+-O-Pd interfaces allows electrooxidation of 5-hydroxymethylfurfural to 2, 5-furandicarboxylic acid with a selectivity near 100 % and 2, 5-furandicarboxylic acid yield of 97.3% at 0.6 volts (versus a reversible hydrogen electrode) in 1 M KOH electrolyte under ambient conditions. The rate-determining step of the intermediate oxidation of 5-hydroxymethyl-2-furancarboxylic acid is promoted by the increased OH species and low C–H activation energy barrier at Ni2+-O-Pd interfaces. Further, the Ni2+-O-Pd interfaces prevent the agglomeration of Pd nanoparticles during the reaction, greatly improving the stability of the catalyst. In this work, Pd/Ni(OH)2 catalyst can achieve 100% 5-hydroxymethylfurfural conversion and >90% 2, 5-furandicarboxylic acid selectivity in a flow-cell and work stably over 200 h under a fixed cell voltage of 0.85 V.

Suggested Citation

  • An Pei & Peng Wang & Shiyi Zhang & Qinghua Zhang & Xiaoyi Jiang & Zhaoxi Chen & Weiwei Zhou & Qizhen Qin & Renfeng Liu & Ruian Du & Zhengjian Li & Yongcai Qiu & Keyou Yan & Lin Gu & Jinyu Ye & Geoffre, 2024. "Enhanced electrocatalytic biomass oxidation at low voltage by Ni2+-O-Pd interfaces," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-50325-w
    DOI: 10.1038/s41467-024-50325-w
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