Sulfur filling activates vacancy-induced C-C bond cleavage in polyol electrooxidation.

ABSTRACT: Using the electrochemical polyol oxidation reaction (POR) to produce formic acid over nickel-based oxides/hydroxides (NiO _x H _y ) 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_O

SUBMITTER: Shi J 

PROVIDER: S-EPMC11409883 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature