Scholarly Research Program. Delivery Order 0007: Characterization of Ionic Liquids as Fuel Cell Electrolytes

Abstract

The object of this work was to synthesize the room temperature ionic liquids, EMImBF4, BMImBF4 and BMPBETI, and to study the electrochemical behavior of ethanol in these electrolytes on the Pt electrode. The electrochemical oxidation of EtOH on Pt electrodes in acidic medium involves several reaction pathways. The predominant pathway involves oxidation of bulk EtOH to CH3CHO which can be further partially oxidized to acetic acid. The secondary reaction involves oxidation of a strongly bound adsorbate, breaking the C-C bond and the formation of CO2. The electrochemical behavior of EtOH in ionic liquid was investigated and compared to the one obtained in acid aqueous electrolyte. It is expected that the use of the room-temperature ionic liquids might prevent poisoning of Pt electrode, by formation of PtO2 , and oxidize EtOH to CH3COOH or CO2.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2004
Accession Number
ADA429817

Entities

People

  • Amanda Davidson
  • Thomas L. Keitz
  • Vladimir Katovic

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Cells
  • Chemistry
  • Detection
  • Electrochemistry
  • Electrodes
  • Electrolytes
  • Fuel Cells
  • Government Procurement
  • Governments
  • Ionic Liquids
  • Liquids
  • Military Research
  • Nitric Acid
  • Oxidation
  • Poisoning

Fields of Study

  • Chemistry
  • Materials science

Readers

  • Nanocomposite Materials Science
  • Organic Chemistry

Technology Areas

  • Biotechnology