biostudies-literatureUnknown11(10)Shi JUsing the electrochemical polyol oxidation reaction (POR) to produce formic acid over nickel-based oxides/hydroxides (NiO <i>_x</i> H <i>_y</i> ) is an attractive strategy for the electrochemical upgrading of biomass-derived polyols. The key step in the POR, i.e. the cleavage of the C-C bond, depends on an oxygen-vacancy-induced mechanism. However, a high-energy oxygen vacancy is usually ineffective for Schottky-type oxygen-vacancy-rich β-Ni(OH)₂ (V_SO-β-Ni(OH)₂). As a result, both β-Ni(OH)₂ and V_SO-β-Ni(OH)₂ cannot continuously catalyze oxygen-vacancy-induced C-C bond cleavage during PORs. Here, we report a strategy of oxygen-vacancy-filling with sulfur to synthesize a β-Ni(OH)₂ (S-V<sub>O</subNational science reviewnwae271https://www.ebi.ac.uk/biostudies/studies/S-EPMC11409883biostudies-literatureSulfur filling activates vacancy-induced C-C bond cleavage in polyol electrooxidation.PMC11409883Jiang YZou YZhu YChen WDong CLShi JHuang YCWu YXie CfalseSulfur filling activates vacancy-induced C-C bond cleavage in polyol electrooxidation.Using the electrochemical polyol oxidation reaction (POR) to produce formic acid over nickel-based oxides/hydroxides (NiO <i>_x</i> H <i>_y</i> ) is an attractive strategy for the electrochemical upgrading of biomass-derived polyols. The key step in the POR, i.e. the cleavage of the C-C bond, depends on an oxygen-vacancy-induced mechanism. However, a high-energy oxygen vacancy is usually ineffective for Schottky-type oxygen-vacancy-rich β-Ni(OH)₂ (V_SO-β-Ni(OH)₂). As a result, both β-Ni(OH)₂ and V_SO-β-Ni(OH)₂ cannot continuously catalyze oxygen-vacancy-induced C-C bond cleavage during PORs. Here, we report a strategy of oxygen-vacancy-filling with sulfur to synthesize a β-Ni(OH)₂ (S-V<sub>O</sub2024-01-01T00:00:00Z2024 Oct2025-04-04T01:14:45.562Z2025-04-04T01:14:45.562ZS-EPMC114098833930108110.1093/nsr/nwae271