Abstract
The Pt/C catalysts with similar morphology of active catalytic phase (platinum nanoparticles), which were deposited on the supports with different types of carbon structures (Vulkan XC-72 carbon black, Taunit carbon tubes, and Timrex HSAG-300 carbon support with graphite structure), were fabricated by the method of electrochemical dispersion. The effect of the carbon structure type on the electrocatalytic properties of Pt/C catalysts was studied in their operation in the three-electrode cell and in-service in the membrane-electrode assembly of air-hydrogen solid-polymer fuel cell. The Pt/C catalyst based on the Vulkan XC-72 carbon support showed the best performance. The anisotropic shape of Taunit carbon nanotubes and the microstructure of Timrex HSAG-300 carbon support do not allow us to form a catalytic layer with a large active platinum surface area and a structure, which provides an effective ionic transport and mass exchange near the platinum surface.
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Original Russian Text © N.V. Smirnova, A.B. Kuriganova, K.S. Novikova, E.V. Gerasimova, 2014, published in Elektrokhimiya, 2014, Vol. 50, No. 9, pp. 999–1003.
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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Smirnova, N.V., Kuriganova, A.B., Novikova, K.S. et al. The role of carbon support morphology in the formation of catalytic layer of solid-polymer fuel cell. Russ J Electrochem 50, 899–903 (2014). https://doi.org/10.1134/S1023193514070143
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DOI: https://doi.org/10.1134/S1023193514070143