Abstract
Synthesis techniques for binary PtSn, PdM (M = Sn, V, Mo) and ternary PtSnNi, PtRuSn catalysts of ethanol electrooxidation on highly dispersed carbon materials are suggested. The highest activity in the 0.5 M H2SO4 solution containing 1 M C2H5OH corresponds to the system of PtSn (3: 1, 40 wt % Pt) with the particle size of 2–4 nm and tin content in the alloy with platinum of about 6%. It was shown that the catalyst efficiency as regards ethanol oxidation depth decreases in the series of Pt > PtRu ≈ PtSn, and the catalyst activity by current forms the series of PtSn > PtRu > Pt. The membrane-electrode assembly (MEA) with the anodes on the basis of the PtSn (3: 1, 40 wt % Pt) catalyst had stable characteristics for 220 h at the current density of ∼50 mA/cm2.
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Original Russian Text © A.V. Kuzov, M.R. Tarasevich, V.A. Bogdanovskaya, 2010, published in Elektrokhimiya, 2010, Vol. 46, No. 4, pp. 444–453.
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Kuzov, A.V., Tarasevich, M.R. & Bogdanovskaya, V.A. Catalysts of ethanol anodic oxidation for ethanol-air fuel cell with a proton-conducting polymer electrolyte. Russ J Electrochem 46, 422–430 (2010). https://doi.org/10.1134/S1023193510040075
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DOI: https://doi.org/10.1134/S1023193510040075