Controlled O 2 reduction at a mixed-valent (II,I) Cu 2 S core

Jordan Mangue (1, 2) , Clément Gondre (1, 2) , Jacques Pécaut (3, 2) , Carole Duboc (4) , Stéphane Ménage (1, 2) , Stéphane Torelli (1, 2)

1 BioCE - Catalyse Bioinorganique et Environnement
2 DIESE - Département Interfaces pour l'énergie, la Santé et l'Environnement
3 CIBEST - Chimie Interface Biologie pour l’Environnement, la Santé et la Toxicologie
4 DCM - CIRE - Département de Chimie Moléculaire - Chimie Inorganique Redox

Inspection of Oxygen Reduction Reactions (ORRs) using a mixedvalent Cu2S complex as a pre-catalyst revealed a tuneable H2O2 vs. H2O production under mild conditions by controlling the amount of sacrificial reducer. The fully reduced bisCuI state is the main active species in solution, with fast kinetics. This new catalytic system is robust for H2O2 production with several cycles achieved and opens up perspectives for integration into devices

Domaines: Chimie de coordination

Jordan Mangue, Clément Gondre, Jacques Pécaut, Carole Duboc, Stéphane Ménage, et al.. Controlled O 2 reduction at a mixed-valent (II,I) Cu 2 S core. Chemical Communications, 2020, 56 (7), pp.9636-9639. ⟨10.1039/d0cc03987j⟩. ⟨hal-02917711⟩