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Metal-Free Homogeneous O 2 Reduction by an Iminium-Based Electrocatalyst

Year: 2024

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide The oxygen reduction reaction (ORR) is important for alternative energy and industrial oxidation processes. Herein, an iminium-based organoelectrocatalyst ( im + ) for the ORR with trifluoroacetic acid as a proton source in acetonitrile solution under both electrochemical and spectrochemical conditions using decamethylferrocene as a chemical reductant is reported. Under spectrochemical conditions, H 2 O 2 is the primary reaction product, while under electrochemical conditions H 2 O is produced. This difference in selectivity is attributed to the interception of the free superoxide intermediate under electrochemical conditions by the reduced catalyst, accessing an alternate inner-sphere pathway.

Source: Journal of the American Chemical Society

DOI: 10.1021/jacs.3c14549

Authors: Emma N. Cook, Anna E. Davis, Michael K. Hilinski, Charles W. Machan

Institution: University of Virginia

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,500