| Autor: |
Oliveira, Regiane C., Zanetti, Sonia M., Assis, Marcelo, Penha, Maya, Mondego, Mayara, Cilense, Mario, Longo, Elson, Cavalcante, Laécio S. |
| Předmět: |
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| Zdroj: |
Journal of the American Ceramic Society; Jun2017, Vol. 100 Issue 6, p2358-2362, 5p |
| Abstrakt: |
In this communication, we report for the first time the nucleation and growth of metallic Ag nanoparticles on the surface of 3D flower-like Ag4V2O7 crystals, induced by accelerated electron beam irradiation. The growth of metallic Ag on the surfaces of Ag4V2O7 crystals were studied by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDXS). According to TEM images and EDXS analyses, exposure to the electron beam induces a reduction process and the growth of metallic Ag nanoparticles on the surface of Ag4V2O7 crystals. Moreover, the inductively coupled plasma optical emission spectrometry measurements indicated an excess of Ag and V vacancies at Ag4V2O7 lattice. Finally, it was observed that the electrical resistance varies considerably with the exposure time to electron beam irradiation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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