Influence of the Morphology of Mesoporous Carbon on the Electrocatalytic Activity of Pt in Oxygen Reduction View Full Text


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Article Info

DATE

2021-03

AUTHORS

E. A. Martynenko, S. V. Vostrikov, A. V. Bulanova, R. V. Shafigulin, A. A. Pimerzin

ABSTRACT

Mesostructured silicates MCM-48, SBA-15, and MCM-41 were synthesized, and the corresponding ordered mesoporous carbons CMK-1, CMK-3, and CS41 were prepared on their basis. Disordered mesoporous carbon WMC was prepared on the basis of amorphous SiO2. The carbon materials obtained were taken as supports for Pt electrocatalysts, which were tested in a model reaction of oxygen reduction. The supports and catalysts were examined by methods of low-temperature nitrogen adsorption, thermal gravimetric analysis, X-ray diffraction, and high-resolution transmission electron microscopy. The catalyst supported on CMK-1 ordered carbon material exhibits higher activity compared to the catalysts supported on CMK-3, CS41, and WMC. The results obtained show that the morphology of carbon support pores plays an important role in the electrocatalytic activity of Pt particles and that the correct choice of carbon supports can ensure considerable cost reduction due to decreased metal content of the catalyst. More... »

PAGES

362-369

References to SciGraph publications

  • 2002-01-01. A New Family of Mesoporous Molecular Sieves in ACCESS IN NANOPOROUS MATERIALS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1134/s1070427221030137

    DOI

    http://dx.doi.org/10.1134/s1070427221030137

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    https://app.dimensions.ai/details/publication/pub.1138307791


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