期刊
CHEMSUSCHEM
卷 14, 期 24, 页码 5405-5409出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202102076
关键词
anion-exchange membrane; electrochemistry; flow reactor; oxidation; supported catalyst
资金
- CREST grant from the Japan Science and Technology Agency (JST) [JP65R1204400]
A novel electrochemical system was developed for the exclusive production of aldehyde from primary alcohol, with oxidation occurring on a gold catalyst under basic conditions. The unique three-phase interfacial reaction sites in the AEM reactor played a crucial role in achieving the selectivity of the oxidation reaction for alcohols.
Oxidation of primary alcohol to the corresponding aldehyde remains a significant challenge, even with the state-of-the-art chemistry. Here, a novel electrochemical system was developed for the exclusive production of aldehyde from primary alcohol using an anion-exchange membrane (AEM) reactor. Oxidation proceeded on a gold catalyst under basic conditions, which largely enhanced the reaction rate. Despite the basic nature around the reaction sites, the oxidation of primary alcohols exclusively yielded the corresponding aldehyde, which was attributed to the unique three-phase interfacial reaction sites in the AEM reactor. In addition to benzyl alcohol, the oxidation of allylic and aliphatic alcohols was also demonstrated. Comparison of constant potential electrolysis with the AEM reactor or a conventional batch-type cell revealed the crucial role of the triple-phase boundary for the selectivity of the oxidation of alcohol.
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