Catalytic Reactions in Direct Ethanol Fuel Cells

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 b...

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Veröffentlicht in:	Angewandte Chemie (International ed.) 2011-03, Vol.50 (10), p.2270-2274
Hauptverfasser:	Kim, In, Han, Oc Hee, Chae, Seen Ae, Paik, Younkee, Kwon, Sung-Hyea, Lee, Kug-Seung, Sung, Yung-Eun, Kim, Hasuck
Format:	Artikel
Sprache:	eng
Schlagworte:	Acetates - chemistry Acetates - metabolism Acetic Acid - chemistry Acetic Acid - metabolism Carbon Isotopes - chemistry Catalysis Electrochemical Techniques electrochemistry Ethanol - chemistry ethanol oxidation fuel cells Magnetic Resonance Spectroscopy NMR spectroscopy Oxidation-Reduction Platinum - chemistry reaction mechanisms Ruthenium - chemistry Tin - chemistry
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Zusammenfassung:	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.
ISSN:	1433-7851 1521-3773
DOI:	10.1002/anie.201005745