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Metal (Mn, Co, and Cu) Oxide Nanocrystals from Simple Formate Precursors
Author(s) -
Sun Xiao,
Zhang YaWen,
Si Rui,
Yan ChunHua
Publication year - 2005
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200500119
Subject(s) - oleylamine , nanocrystal , thermal decomposition , metal , oxide , formate , materials science , copper , inorganic chemistry , valence (chemistry) , redox , chemical engineering , chemistry , nanotechnology , catalysis , organic chemistry , metallurgy , engineering
Dispersible Mn 3 O 4 , CoO, and CuO x nanocrystals were synthesized via thermolysis of simple, generic molecular precursors (metal formates) in hot surfactant (oleylamine/oleic acid) solutions, which showed two‐dimensional ordering on copper grids. The metal valence states in the final products were found to depend upon complex redox behavior during the synthesis. 11–24 nm CoO nanocrystals (such as those displayed in the TEM image) were shown to display interesting magnetic properties.