Au-catalyzed electrochemical oxidation of alcohols using an electrochemical column flow cell

[Display omitted] •A novel green system for the electrochemical alcohol oxidation is proposed.•Au-catalyzed electrochemical oxidation of alcohols with column flow cell is reported.•Productivity is greatly improved compared with that of a batch-type reactor.•The amount of base strongly affects the se...

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Bibliographic Details
Published in:Electrochemistry communications 2021-03, Vol.124, p.106944, Article 106944
Main Authors: Suga, Tatsuya, Shida, Naoki, Atobe, Mahito
Format: Article
Language:English
Subjects:
Alcohol oxidation
Au catalyst
Electrochemical column flow cell
Electrochemical oxidation
Electrosynthesis
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Summary:[Display omitted] •A novel green system for the electrochemical alcohol oxidation is proposed.•Au-catalyzed electrochemical oxidation of alcohols with column flow cell is reported.•Productivity is greatly improved compared with that of a batch-type reactor.•The amount of base strongly affects the selectivity of the products.•Long-term use of the electrochemical column flow system is demonstrated. A novel green system for the electrochemical oxidation of alcohols is demonstrated using a column flow cell. Voltammetric analysis revealed that the oxidation of 1-phenylethanol and benzaldehyde are promoted by using both an Au-electrode and an alkaline medium. To conduct such reaction with a column flow cell, we developed a method to modify a carbon-fiber thread with Au nanoparticles. The column carbon-fiber thread electrode modified with Au nanoparticles showed a high surface area, enabling the efficient electrochemical oxidation of various alcohols.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2021.106944