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

• Published in: Electrochemistry communications Vol. 124; p. 106944
• Main Authors: Suga, Tatsuya, Shida, Naoki, Atobe, Mahito
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2021; Elsevier
• Subjects: Alcohol oxidation; Au catalyst; Electrochemical column flow cell; Electrochemical oxidation; Electrosynthesis; Electrosynthesis; Au catalyst; Electrochemical column flow cell; Alcohol oxidation; Electrochemical oxidation
• ISSN: 1388-2481; 1873-1902
• DOI: 10.1016/j.elecom.2021.106944

[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.