Comparative Investigation of Electrocatalytic Oxidation of Cyclohexene by Proton-Exchange Membrane and Anion-Exchange Membrane Electrolyzers.

Thus, in the acidic atmosphere of the PEM electrolyzer, oxidation of the allyl moiety and the olefinic moiety of cyclohexene occurred concurrently and the oxidation products could not be selectively and efficiently synthesized at either potential or on either catalyst. The fact that this cyclohexene oxidation current was not observed on the unmodified Au catalyst anode (Figure S1 in SI) suggests that the cyclohexene is oxidized by reactive oxygen species formed on the Au catalyst. In potentiostatic bulk electrolysis using the PEM electrolyzer, oxidation of cyclohexene proceeded efficiently; however, there is competition between oxidation of the allylic and olefinic moieties of cyclohexene. Keywords: electrocatalytic oxidation; proton-exchange membrane electrolyzer; anion-exchange membrane electrolyzer; cyclohexene EN electrocatalytic oxidation proton-exchange membrane electrolyzer anion-exchange membrane electrolyzer cyclohexene 2979 2984 6 08/31/23 20230915 NES 230915 Graph Oxidation can be used as a synthetic tool to manufacture many chemical products and is therefore one of the most important reactions in the chemical industry. [Extracted from the article]