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Characterization of CeO₂, ZrO₂, and CeZrO₂ Crystals on CNT

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Carbon nanotubes are increasingly being used as a support for catalyst particles. Carbon nanotubes are also used for filtering and reduction, their widespread use due to the high surface area which allows for attachment to the surface of carbon nanotubes a large amount of metallic (Ni, Fe, Pt, etc.) or oxide particles, serving as catalysts. The use of ceria-zirconia mixed oxide deposited on the surface of the nanotubes has not yet been sufficiently examined. Scanning transmission electron microscope with high-angle annular dark-field imaging and high-resolution transmission electron microscopy imaging were used as primary research techniques. Conducted research using high-angle annular dark-field imaging allows determining that catalyst particles have a regular shape which is the best from the standpoint of catalysis. Using a fast Fourier transform: and diffraction pattern has identified the catalyst particles as CeZrO₂.
  • Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland
  • Department of Chemistry and Technology of Fuels, Wroclaw University of Science and Technology, Gdańska 7/9, 50-344 Wrocław, Poland
  • Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41819 Zabrze, Poland
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