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Platinized-heteropolycompound-based nanostructured catalysts for low-temperature hydrogen-air fuel cells

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Abstract

Heteropoly acids Cs x H3 − x PW12O40 · nH2O with different cesium content are synthesized as nanostructured compositions. Their actual composition and specific surface are determined, microstructure studied and proton conductivity measured. Composite electrocatalytic systems based on platinized cesium salt of phosphorus-tungsten heteropolyacid Cs2.3H0.7PW12O40 · nH2O are prepared with admixture of Vulcan XC-72 carbon black. Mixed electronic-ionic conduction of the composite systems with different carbon black content is studied. Platinum-based nanostructured electrocatalyst based on the Cs2.3H0.7PW12O40 · nH2O-materials as support is synthesized and studied. The possible effective using of the studied nanocomposite as electrode for low-temperature hydrogen-air fuel cells is demonstrated. Electrochemical studies of catalytic properties of the Pt-Cs2.3H0.7PW12O40 · nH2O-C-electrodes in hydrogen and air are carried out by example of the prepared materials with different carbon black content.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. akad. Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia

    Tszin Chzhao, A. E. Ukshe, L. S. Leonova & Yu. A. Dobrovol’skii

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  1. Tszin Chzhao
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  2. A. E. Ukshe
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  3. L. S. Leonova
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  4. Yu. A. Dobrovol’skii
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Correspondence to A. E. Ukshe.

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Original Russian Text © Tszin Chzhao, A.E. Ukshe, L.S. Leonova, Yu.A. Dobrovol’skii, 2011, published in Elektrokhimiya, 2011, Vol. 47, No. 5, pp. 634–644.

After the paper delivered at the 10th Meeting “Fundamental Problems of Solid State Ionics”, Chernogolovka, 2010.

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Chzhao, T., Ukshe, A.E., Leonova, L.S. et al. Platinized-heteropolycompound-based nanostructured catalysts for low-temperature hydrogen-air fuel cells. Russ J Electrochem 47, 595–604 (2011). https://doi.org/10.1134/S1023193511050168

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  • DOI: https://doi.org/10.1134/S1023193511050168

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