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Catalytic Reactions in Direct Ethanol Fuel Cells

Authors

  • Dr. In Kim,

    1. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu, 702-701 (Korea), Fax: (+82) 53-959-3405
    2. Department of Chemistry, Seoul National University, Seoul, 151-747 (Korea)
    3. Present address: SB LiMotive Co., Ltd., Yongin (Korea)
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  • Dr. Oc Hee Han,

    Corresponding author
    1. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu, 702-701 (Korea), Fax: (+82) 53-959-3405
    2. Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 305-764 (Korea)
    • Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu, 702-701 (Korea), Fax: (+82) 53-959-3405
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  • Dr. Seen Ae Chae,

    1. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu, 702-701 (Korea), Fax: (+82) 53-959-3405
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  • Dr. Younkee Paik,

    1. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu, 702-701 (Korea), Fax: (+82) 53-959-3405
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  • Sung-Hyea Kwon,

    1. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu, 702-701 (Korea), Fax: (+82) 53-959-3405
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  • Dr. Kug-Seung Lee,

    1. School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-744 (Korea)
    2. Present address: Fuel Cell Center, Korea Institute of Science and Technology, Seoul (Korea)
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  • Dr. Yung-Eun Sung,

    1. School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-744 (Korea)
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  • Dr. Hasuck Kim

    1. Department of Chemistry, Seoul National University, Seoul, 151-747 (Korea)
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  • This work was supported by KBSI grants (K29030 and K30030) to O.H.H.

Abstract

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Different anode catalysts (Pt/C, PtRu/C, Pt3Sn/C) and operating potentials lead to different product distributions in the anode exhaust of direct ethanol fuel cells, as shown by liquid-state 13C NMR spectroscopy (see typical spectrum). Addition of Ru or Sn to Pt/C increases current density, mainly because of enhanced acetic acid production, and the potential dependences of products give clues to reaction pathways of ethanol electro-oxidation.

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