Abstract

AbstractAnalysis by capillary electrophoresis (CE) of nanoliter samples taken 0.05 mm away from the electrode/solution interface assisted in the evaluation of glycerol electrooxidation on noble metals (Pt, Au and Pd). The fully automated all electrochemical flow system generates a conductometric electropherogram every few minutes, while exploring experimental parameters. Products like glycerate, glycolate, formate and hydroxymalonate were observed in different ratios by changing the electrocatalyst and the applied potential. On Pd, dissolved oxygen oxidizes glycerol at zero current. This new approach holds promise for fast in situ study of reaction products of heterogeneous catalysis reactions and electrode processes in general.

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