Oxyanions stabilized low-coordinated nickel species for efficient and durable nucleophilic electrooxidation.

ABSTRACT: Nucleophilic oxidation reactions (NORs) are key for high-value organics in electrosynthesis, but limited by slow dehydrogenation kinetics and competing oxygen evolution reactions (OER). While low-coordinated Ni species exhibit enhanced activity in rate-determining electrochemical deprotonation, they suffer irreversible oxidation with rapid performance degradation. Herein, we develop a class of oxyanion-stabilized low-coordinated Ni catalysts for highly efficient and durable oxidation of diverse nucleophiles including urea, methanol, and biomass-derived 5-hydroxymethylfurfural. Bicarbonate ligands form an electrostatically repulsive microenvironment, suppressing parasitic OER and Ni over-oxidation via dynamic ligand-cation coordination. These mediators form bifunctional channels, linking Ni

SUBMITTER: Liu X 

PROVIDER: S-EPMC12714771 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature