Effect of metallic Ag growth on the electrical resistance of 3D flower‐like Ag 4 V 2 O 7 crystals

Abstract In this communication, we report for the first time the nucleation and growth of metallic Ag nanoparticles on the surface of 3D flower‐like Ag 4 V 2 O 7 crystals, induced by accelerated electron beam irradiation. The growth of metallic Ag on the surfaces of Ag 4 V 2 O 7 crystals were studie...

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Published inJournal of the American Ceramic Society Vol. 100; no. 6; pp. 2358 - 2362
Main Authors de Oliveira, Regiane C., Zanetti, Sonia M., Assis, Marcelo, Penha, Maya, Mondego, Mayara, Cilense, Mario, Longo, Elson, Cavalcante, Laécio S.
Format Journal Article
LanguageEnglish
Published 01.06.2017
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Summary:Abstract In this communication, we report for the first time the nucleation and growth of metallic Ag nanoparticles on the surface of 3D flower‐like Ag 4 V 2 O 7 crystals, induced by accelerated electron beam irradiation. The growth of metallic Ag on the surfaces of Ag 4 V 2 O 7 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 Ag 4 V 2 O 7 crystals. Moreover, the inductively coupled plasma optical emission spectrometry measurements indicated an excess of Ag and V vacancies at Ag 4 V 2 O 7 lattice. Finally, it was observed that the electrical resistance varies considerably with the exposure time to electron beam irradiation.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.14803