Monodisperse Octahedral alpha-MnS and MnO Nanoparticles by the Decomposition of Manganese Oleate in the Presence of Sulfur (Articolo in rivista)

Type
Label
  • Monodisperse Octahedral alpha-MnS and MnO Nanoparticles by the Decomposition of Manganese Oleate in the Presence of Sulfur (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/cm903735e (literal)
Alternative label
  • Puglisi, A.; Mondini, S.; Cenedese, S.; Ferretti, A. M.; Santo, N.; Ponti, S. (2010)
    Monodisperse Octahedral alpha-MnS and MnO Nanoparticles by the Decomposition of Manganese Oleate in the Presence of Sulfur
    in Chemistry of materials
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Puglisi, A.; Mondini, S.; Cenedese, S.; Ferretti, A. M.; Santo, N.; Ponti, S. (literal)
Pagina inizio
  • 2804 (literal)
Pagina fine
  • 2813 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • PM.P04.009.001 - Sistemi funzionali a nanoparticelle magnetiche. Financial support from Regione Lombardia (Italy) within the \"Mind in Italy\" initiative and from the Fondazione Cariplo (Milano, Italy) under Grant 2004-1154 is gratefully acknowledged. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 22 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • DOI: 10.1021/cm903735e Supporting Information: Elemental analysis, infrared and ESI-MS spectra of manganese precursors; temperature vs time plot for dipping the reaction tube in a hot oil bath; electron diffractogram of a mixed alpha-MnS and MnO NP sample; TEM images of alpha-MnS and MnO NPs with highly anisotropic shapes (PDF). This material is available free of charge via the Internet at http://pubs.acs.org (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 9 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Laboratorio di Nanotecnologie, Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche, via G. Fantoli 16/15, 20138 Milano, Italy (Puglisi, A.; Mondini, S.; Ferretti, A.M.) Istituto di Scienze e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche, via C. Golgi 19, 20133 Milano, Italy (Cenedese, S.; Ponti, A.) Centro Interdipartimentale di Microscopia Avanzata, Universit degli Studi di Milano, via G. Celoria 26, 20133 Milano, Italy (Santo, N.) (literal)
Titolo
  • Monodisperse Octahedral alpha-MnS and MnO Nanoparticles by the Decomposition of Manganese Oleate in the Presence of Sulfur (literal)
Abstract
  • Octahedral monodisperse a-MnS and MnO nanoparticles have been synthesized by decomposing manganese oleate and elemental sulfur in octadecene at high (250-320 °C) temperature. The chemical composition of the obtained NPs depends on the Mn:S ratio in an unexpected way. Pure a-MnS NP samples are obtained when S:Mn >= 2:1, whereas pure MnO NPs require S:Mn <= 0.6. Variation of several parameters (concentration of sulfur, heating rate and aging temperature and time) resulted in a a-MnS NP size interval of 11-14 (from Mn monooleate) and 18-30 nm (from Mn dioleate). For MnO NPs only, size control is also possible by addition of free oleic acid (14-24 nm). Analysis of TEM tilting experiments and electron diffraction shows that both ?-MnS and MnO nanoparticles have octahedral shape and spontaneously form ordered arrays with strong texture in the {111} direction. Measurement of the magnetic properties showed that ?-MnS nanoparticles consist of an antiferromagnetic core and a ferromagnetic-like shell that are exchange coupled below the blocking temperature of the shell (23 K for 29 nm a-MnS NP). (literal)
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it