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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Kočí, Jan | Prague |
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Ali, M. A. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Kozinkin, A. V.
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article
Copper nanoparticles on the surface of ultradispersed polytetrafluoroethylene nanograins
Abstract
<p>Nanosized copper-containing particles stabilized on the surface of polymer nanograins were obtained by thermal decomposition of copper-containing precursors in a fluidized bed of ultradispersed polytetrafluoroethylene. Transmission electron microscopy showed that the average size of nanoparticles is 10-12 nm. The structure of the particles was determined by EXAFS, EPR, and X-ray powder diffraction. The copper nanoparticles consist of a core and a shell and are well structured. The core is copper metal, whereas the surface layer, which constitutes no more than 2% of the nanoparticle weight, is copper oxide.</p>