Doped Mn Enhanced NiS Electrooxidation Performance of HMF into FDCA at Industrial‐Level Current Density

Abstract Electrooxidation of 5‐hydroxymethylfurfural (HMF) into 2,5‐furandicarboxylic acid (FDCA) is a highly promising approach for producing value‐added chemicals from biomass. However, developing highly efficient electrocatalysts for HMF oxidation (HMFOR) with high current density in large‐scale productions remains a challenge. Herein, it is demonstrated that the Mn‐doped NiS nanosheet electrocatalysts grown directly on 3D graphite felt (GF) substrates can efficiently perform electrooxidation of HMF into FDCA at industrial‐level current density (500 mA cm −2 ) in the H‐cell. The Mn 0.2 NiS/GF exhibits excellent HMFOR performance with high selectivity (98.3%), yield (97.6%), faradaic efficiency (94.2%), and…

• NN
  National Natural Science Foundation of China

  Awards: 2017R5203, 21625604, 91934302, 22141001, 22078293
• NK
  National Key Research and Development Program of China

  Awards: 2021YFA1500903, 2022YFA1504200
• NS
  Natural Science Foundation of Zhejiang Province

  Award: LR22B060003