Singlet Oxygen and the Origin of Oxygen Functionalities on the Surface of Carbon Electrodes

The generation of oxygen‐containing functionalities on pristine carbon surfaces is investigated and shown to be light sensitive, specifically to infra‐red radiation. A mechanistic route involving singlet oxygen, 1O2, is proposed and evidenced. Graphitey artist: The mechanistic pathway and the photos...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2018-05, Vol.57 (21), p.6270-6273
Main Authors: Chaisiwamongkhol, Korbua, Batchelor‐McAuley, Christopher, Palgrave, Robert G., Compton, Richard G.
Format: Article
Language:English
Subjects:
Carbon
carbon electrodes
electrochemistry
Oxygen
Pollutants
Radiation
Singlet oxygen
surface chemistry
surface functionality
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Summary:The generation of oxygen‐containing functionalities on pristine carbon surfaces is investigated and shown to be light sensitive, specifically to infra‐red radiation. A mechanistic route involving singlet oxygen, 1O2, is proposed and evidenced. Graphitey artist: The mechanistic pathway and the photosensitivity of generating oxygen functionality on pristine carbon surfaces are studied under atmospheric temperature and pressure conditions. Singlet oxygen (1O2) reacts with graphite surfaces to create quinone features. A reaction route of singlet oxygen with electron‐rich aromatic zones on graphite surface is proposed.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201803164