Size-dependent magnetic properties of colloidal Mn3O4 and MnO nanoparticles

Won Seok Seo, Hyong Hoon Jo, Kwangyeol Lee, Bongsoo Kim, Sang Jun Oh, Joon T. Park

Research output: Contribution to journalArticlepeer-review

487 Citations (Scopus)


Highly crystalline and monodisperse MnO and Mn3O4 nanoparticles are prepared by thermal decomposition of [Mn(acac)2] in oleylamine under an inert atmosphere in the presence and absence of a small amount of water, respectively (see picture). The particle size of both manganese oxide systems can be easily manipulated by changing the employed reaction temperature, and it has been demonstrated that the magnetic behavior depends on the size of the particles.

Original languageEnglish
Pages (from-to)1115-1117
Number of pages3
JournalAngewandte Chemie - International Edition
Issue number9
Publication statusPublished - 2004 Feb 20


  • Colloids
  • Magnetic properties
  • Manganese
  • Nanoparticles

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry


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