Mn and Mo co-doped NiS nanosheets induce abundant Ni3+–O bonds for efficient electro-oxidation of biomass.

MnMo–NiS were synthesized for electro-oxidizing ethylene glycol (EG), glycerol (GLY), and 5-hydroxymethylfurfural (HMF), achieving faradaic efficiencies of 97.5%, 98.6%, and 99.2%, and yield rates of 615.7, 475.5, and 333.9 μmol h−1 cm−2. In situ Raman spectroscopy and multi-step chronoamperometry reveal that Ni3+–O is the active site. [ABSTRACT FROM AUTHOR]