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Leaf‐like copper oxide nanocrystals synthesized by a gas‐liquid diffusion method at room temperature
Author(s) -
Shi Zhuo,
Zhang Afang,
Zhang Qiang
Publication year - 2014
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201400124
Subject(s) - copper , selected area diffraction , transmission electron microscopy , thermogravimetric analysis , scanning electron microscope , copper oxide , diffusion , materials science , oxide , nanocrystal , aqueous solution , powder diffraction , diffraction , chemical engineering , analytical chemistry (journal) , crystallography , chemistry , nanotechnology , metallurgy , organic chemistry , optics , composite material , physics , engineering , thermodynamics
The leaf‐like copper oxide (CuO) nanocrystals have been synthesized by a gas‐liquid diffusion method in pure aqueous solution at room temperature. The structure, morphologies and related properties of the as‐prepared crystals were characterized with X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), selected area electron diffraction (SAED) and thermogravimetric analysis (TG). The influence of copper concentration was investigated, which plays an important role in the formation of nanostructured CuO crystals. Only when the copper concentration was low enough (0.005 M) that the leaf‐like CuO could be obtained directly. Additionally, a growth mechanism of CuO was also proposed based on the observed results.