Abstract
Highly disperse platinum film were vacuum-plasma-deposited onto titanium foil and gas-diffusion layers. The platinum deposits have complicated structure. By measuring hydrogen desorption peaks, the catalysts’ active specific surface area was determined and the roughness factor calculated. The electrochemical activity of the electrodes on gas-diffusion layers in the oxygen reduction and hydrogen oxidation reactions was determined. It was shown that the catalysts’ specific activity depends on the platinum content and the Nafion-ionomer additive. The high-activity electrodes were tested in Membrane Electrode Assemblies of low-temperature fuel cells.
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Original Russian Text © S.I. Nefedkin, O.V. Kholichev, V.I. Pavlov, A.S. Bogomolova, N.G. Sedel’nikov, E.V. Gerasimova, Yu.A. Dobrovol’skii, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 7, pp. 692–699.
This publication was prepared based on a lecture delivered at the All-Russian Conference with international participation “Fuel Cells and Power Plants,” Chernogolovka, 2013.
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Nefedkin, S.I., Kholichev, O.V., Pavlov, V.I. et al. Catalytically active platinum blacks prepared by magnetron sputtering in vacuum and their using in fuel cells with solid polymer electrolyte. Russ J Electrochem 50, 617–624 (2014). https://doi.org/10.1134/S102319351407009X
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DOI: https://doi.org/10.1134/S102319351407009X