Electrochemical oxidation of C2 alcohols at platinum electrodes in acidic and alkaline environment
By Bayer, D.; Berenger, S.; Joos, M.; Cremers, C. & Tübke, J.
Published in International Journal of Hydrogen Energy
NULL
2010
Abstract
In this study, the electro-oxidation of the C2 alcohols ethanol and ethylene glycol is investigated in acidic and alkaline environment by means of cyclic voltammetry, chronoamperometry and differential electrochemical mass spectrometry (DEMS). It is shown that while in acidic medium both alcohols exhibit a comparable electrochemical performance, in alkaline medium the current densities for ethylene glycol in cyclic voltammetry and chronoamperometry are substantially higher. This signifies that ethylene glycol is more active and the poisoning effect on platinum in alkaline medium is less severe. With DEMS it is shown that the oxidation of ethylene glycol in cyclic voltammetry leads to a significant formation of carbon dioxide, indicating bulk oxidation to carbon dioxide. For ethanol, carbon dioxide formation is only observed at a marginal extent in the potential region where adsorbed carbon monoxide is oxidised. This leads to the assumption that carbon dioxide is formed from ethanol adsorbates and is not a product of bulk oxidation.
Microsoft is Ending Support for Windows 7
Microsoft will discontinue support for Windows 7 on January 14, 2020 which means Gamry will also be discontinuing support for Windows 7. If you are upgrading to Windows 10, like many companies and institutions, you need to be running Version 7 of our s oftware . Please note that only USB and Ethernet-based instruments can run in Version 7. Eligible users can download the latest version of our software through our online Client Portal .
If you haven't already registered your instrument, you can do so through the Client Portal .
Please email Technical Support if you have any questions regarding this transition. Please be sure to include your instrument model and serial number when contacting us.