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Electrochemical Oxidation of Ethanol in Ionic Liquids and Its Possible Use in Fuel Cells

Mason, Ashley M.

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2010, Master of Science (MS), Wright State University, Chemistry.

Mason, Ashley. M.S., Department of Chemistry, Wright State University, 2010. Electrochemical oxidation of ethanol in ionic liquid and its possible use in fuel cells.

Electrochemical properties of EtOH in EMImBF4 ionic liquid were investigated and compared to the electrochemical properties of EtOH in 0.1M HClO4/H2O. As was shown earlier, oxidation of EtOH in HClO4/H2O involves formation of PtO on the electrode surface, which makes the electrode poisoned. We have found that the best procedure for removal of PtO from the Pt electrode is heating the electrode in concentrated H2SO4. Cyclic voltammograms obtained after cleaning several Pt electrodes conforms that this treatment gives clean Pt electrodes without any PtO. Electrochemical oxidation of EtOH in EMImBF4 ionic liquid show that is poisoning of Pt electrode by formation of PtO occurs even at high EtOH concentration (1mA). A commercial phosphoric acid fuel cell (PACF) with EMImBF4 electrolyte instead of H3PO4 concentrate was used. A polarization curve at 30 °C gives the open cell voltage of 0.25 V. For comparison the source cell with EMImBF4 and H2 fuel generates an open cell voltage of 0.70 V at 30 °C.

Vladimir Katovic, PhD (Advisor)
Daniel Bombick, PhD (Committee Member)
Suzanne Lunsford, PhD (Committee Member)
63 p.

Recommended Citations

Citations

  • Mason, A. M. (2010). Electrochemical Oxidation of Ethanol in Ionic Liquids and Its Possible Use in Fuel Cells [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1271270115

    APA Style (7th edition)

  • Mason, Ashley. Electrochemical Oxidation of Ethanol in Ionic Liquids and Its Possible Use in Fuel Cells. 2010. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1271270115.

    MLA Style (8th edition)

  • Mason, Ashley. "Electrochemical Oxidation of Ethanol in Ionic Liquids and Its Possible Use in Fuel Cells." Master's thesis, Wright State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1271270115

    Chicago Manual of Style (17th edition)