Abstract
In the present work, the electro-oxidation of ethanol and ethylene glycol in alkaline medium is studied depending on their concentration by cyclic voltammetry, chronoamperometry and differential electrochemical mass spectrometry (DEMS). It is shown that in the case of ethanol, carbon dioxide as product of the oxidation can only be found during cyclic voltammetry. Within the investigated concentration range, potentiostatic experiments do not indicate bulk oxidation of ethanol to carbon dioxide. For ethylene glycol, the oxidation in cyclic voltammetry as well as in chronoamperometric experiments leads to significant carbon dioxide formation with the tendency that low concentrations and low potentials yield high carbon dioxide current efficiencies. Furthermore, comparatively higher current densities in cyclic voltammetry and chronoamperometric experiments indicate that with respect to ethanol, ethylene glycol is more active and the poisoning effect on platinum in alkaline medium is less severe.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
