Mixed Magnesium and Zinc oxides by co-precipitation (Articolo in rivista)

Type
Label
  • Mixed Magnesium and Zinc oxides by co-precipitation (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1116/11.20071101 (literal)
Alternative label
  • Khairallah F.; Glisenti A.; Galenda A.; Natile M.M. (2012)
    Mixed Magnesium and Zinc oxides by co-precipitation
    in Surface science spectra
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Khairallah F.; Glisenti A.; Galenda A.; Natile M.M. (literal)
Pagina inizio
  • 13 (literal)
Pagina fine
  • 22 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://avspublications.org/sss/resource/1/ssspen/v19/i1/p13_s1?isAuthorized=no (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 19 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,2 : Università di Padova, Dip. Scienze Chimiche, Via Marzolo 1, 35131 Padova, Italy / 3 : CNR, ICIS, INSTM, Corso Stati Uniti 4, 35127, Padova, Italy / 4 : CNR, ISTM, Dipartimento di Scienze Chimiche, Via Marzolo 1, Padova 35131, Italy (literal)
Titolo
  • Mixed Magnesium and Zinc oxides by co-precipitation (literal)
Abstract
  • Two Zinc-Magnesium Oxide powders were prepared by means of a sol-gel method based on the mixing of nitrates of Mg and Zn, followed by complexation with citric acid. The samples are characterized by a nominal (i.e. calculated from the weighted amount of precursors) Zn/Mg atomic ratio of 0.01 (specimen 1, Accession #1232), and 0.5 (specimen 2, Accession #1233). The surface properties and the influence of the Zn/Mg atomic ratio are investigated by means of XPS (using a standard Al K?). Besides the wide scan spectra, detailed spectra for the Mg 1s, Zn 2p3/2 and O 1s regions and related data are presented and discussed. XP analysis confirms the presence of Mg (II) and Zn (II). The XPS Zn/Mg atomic ratio is always lower than the nominal one; this is particularly evident in specimen 1 (Accession #1232) thus suggesting a certain surface segregation of magnesium. The O/(Mg + Zn) atomic ratio is higher than the nominal one and decreases with increasing the Zn/Mg atomic ratio (from 1.5 for [Zn/Mg]nom = 0.01 to 1.3 for [Zn/Mg]nom = 0.5). (literal)
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