Mechanism of CO₂ Electrolysis with Heterogenized Molecular Iridium Catalysts Deciphered Using Operando Spectroscopy.

ABSTRACT: Although many molecular catalysts for electrochemical reduction of carbon dioxide (CO₂) to formic acid (HCO₂H) have been surveyed to date, catalytic mechanisms proposed are often based on computational studies of hypothetical intermediates that lack direct experimental evidence and thus remain poorly understood. A solid understanding of the reaction mechanism is thus crucial to develop more efficient molecular catalysts. Multioperando analysis was conducted for the electrochemical reduction of CO₂ using gas diffusion electrodes (GDEs), where a heterogenized molecular iridium (Ir) catalyst was coordinated with a tetradentate 6,6'-bis(phosphinomethyl)-2,2'-bipyridyl ligand. Application to a GDE system maintained plasmon-enhanced particles on the electrode, en

SUBMITTER: Sakamoto N 

PROVIDER: S-EPMC12752463 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature