Controlled O2 reduction at a mixed-valent (II, I) Cu2S core. Issue 67 (23rd July 2020)

• Record Type: Journal Article
• Authors: Mangue, Jordan; Gondre, Clément; Pécaut, Jacques; Duboc, Carole; Ménage, Stéphane; Torelli, Stéphane
• Is Part Of: Chemical communications. Volume 56:Issue 67(2020)
• Page Start: 9636
• Page End: 9639
• Publication Date: 2020-07-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d0cc03987j
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Oxygen reduction reactions catalyzed by a mixed-valent copper complex reveal a tuneable H2 O2 /H2 O selectivity at room temperature together with high stability over several cycles. Abstract : Inspection of Oxygen Reduction Reactions (ORRs) using a mixed-valent Cu2 S complex as a pre-catalyst revealed a tuneable H2 O2 vs. H2 O production under mild conditions by controlling the amount of sacrificial reducer. The fully reduced bisCu I state is the main active species in solution, with fast kinetics. This new catalytic system is robust for H2 O2 production with several cycles achieved and opens up perspectives for integration into devices.