Open AccessSelf-assembled two-dimensional structure of magnetic cobalt nanocrystals
Author(s) -
Chengmin Shen,
Su Yi-Kun,
Yang Hai-Tao,
Yang Tian-Zhong,
Yuping Wang,
Gao Hong-Jun
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.483
Subject(s) - nanocrystal , materials science , cobalt , dispersity , valency , x ray photoelectron spectroscopy , chemical engineering , hexagonal crystal system , nanotechnology , crystallography , chemistry , polymer chemistry , metallurgy , linguistics , philosophy , engineering
Synthesis of monodisperse Cobalt nanocrystals by high temperature diol reduction methods in the presence oleic acid and triocethylphosphine stabilizers were reported.The mean size of the Co nanocrystals is about 14±19nm and a standard deviation of the diameter is less than 2%.The structure and the surface valency state of the Co nanocrystals were measured by XRD,Uv-vis,XPS and TEM.The monodisperse Cobalt nanocrystals can be assembled to form a two-dimensional hexagonal close-packed structure.