Assembly and Fine Analysis of Ni/MgO Core/Shell Nanoparticles (Articolo in rivista)

Type
Label
  • Assembly and Fine Analysis of Ni/MgO Core/Shell Nanoparticles (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jp202247j (literal)
Alternative label
  • D'Addato S., V. Grillo, S. Altieri, S. Frabboni, F. Rossi, and S. Valeri (2011)
    Assembly and Fine Analysis of Ni/MgO Core/Shell Nanoparticles
    in Journal of physical chemistry. C; American Chemical Society, Washington (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D'Addato S., V. Grillo, S. Altieri, S. Frabboni, F. Rossi, and S. Valeri (literal)
Pagina inizio
  • 14044 (literal)
Pagina fine
  • 14049 (literal)
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  • ID_PUMA: cnr.imem/2011-A0-028 (literal)
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  • 115 (literal)
Rivista
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  • DOI:10.1021/jp202247j (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 29 (literal)
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  • We obtained assemblies of Ni/MgO core/shell nanoparticles (NPs) by using a special experimental setup, in which a beam of preformed Ni nanoclusters, obtained by sputtering and aggregation, is co-deposited with evaporated Mg on a substrate, in a controlled O2 atmosphere. In situ X-ray photoelectron spectroscopy (XPS) and ex situ energy-filtered transmission electron microscopy (EF-TEM) show that the Ni core remains metallic, whereas Mg, located in the shell, is completely oxidized. Detailed high-resolution transmission electron microscopy and geometric phase analyses reveal the multitwinned icosahedral structure of the Ni core and details the arrangement of the MgO shell. This combined effort of controlled assembly of NPs and fine analysis offers intriguing possibilities in the design of nanoscale materials. (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Centro S3, Istituto Nanoscienze-CNR, Via G. Campi 213/a, 41125 Modena, Italy; Dipartimento di Fisica, Universit di Modena e Reggio Emilia, Via G. Campi 213/a, 41125 Modena, Italy; IMEM-CNR, Parco Area delle Scienze 37/A - 43100 Parma, Italy (literal)
Titolo
  • Assembly and Fine Analysis of Ni/MgO Core/Shell Nanoparticles (literal)
Abstract
  • We obtained assemblies of Ni/MgO core/shell nanoparticles (NPs) by using a special experimental setup, in which a beam of preformed Ni nanoclusters, obtained by sputtering and aggregation, is co-deposited with evaporated Mg on a substrate, in a controlled O(2) atmosphere. In situ X-ray photoelectron spectroscopy (XPS) and ex situ energy-filtered transmission electron microscopy (EF-TEM) show that the Ni core remains metallic, whereas Mg, located in the shell, is completely oxidized. Detailed high-resolution transmission electron microscopy and geometric phase analyses reveal the multitwinned icosahedral structure of the Ni core and details the arrangement of the MgO shell. This combined effort of controlled assembly of NPs and fine analysis offers intriguing possibilities in the design of nanoscale materials. (literal)
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