Abstract
The electrocatalytic oxidation of several saturated oxygenated organic compounds (ethanol, ethylene glycol, acetaldehyde, glycolaldehyde, glyoxal, acetic acid, glycolic acid, glyoxylic acid, oxalic acid, glycerol, and the four butanol isomers) was investigated on gold electrodes both in acid and alkaline medium using cyclic voltammetry. For all the compounds investigated in this work, gold behaves as a poor electrocatalyst in acid medium, except for the oxidation of glyoxylic acid and oxalic acid. In alkaline medium, conversely, gold is an excellent electrocatalyst (even much better than platinum), particularly for the oxidation of the aldehyde functional group and the alcohol group.
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