High‐Entropy Environments Enable Metal Surface‐Catalyzed Nucleophilic Electrooxidation

Electrochemical biomass conversion offers a sustainable route to diverse products, minimizing environmental impact. However, conventional 5-hydroxymethylfurfural electrooxidation (HMFOR) catalysts such as Ni(OH)₂ and NiS suffer from low conductivity, poor stability, and limited active sites. This work introduces a CoNiMnMoPd high entropy alloy (HEA) to address these limitations by simultaneously maintaining high conductivity, stability, and a high Ni oxidation state, enabling nucleophilic dehydrogenation. The HEA catalyst achieved a 92.5% 2,5-furandicarboxylic acid (FDCA) Faradaic efficiency, 89.5% HMF conversion, and 95.8% FDCA selectivity, maintaining performance for over 100 h. Experimental and theoretical…

• NN
  National Natural Science Foundation of China

  Awards: 52273058, 52073124
• FR
  Fundamental Research Funds for the Central Universities