Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36141
Title: Synthesis, characterization and microwave dielectric properties of flower-like Co(OH)(2)/C nanocomposites
Authors: Feng, C
Bi, NN
Liu, XG
Jin, CG
Huang, K
Xiao, F
Sun, YP
Or, SW 
Keywords: Nanocomposites
Nanosheets
Core/shell structure
Carbon
Issue Date: 2014
Publisher: Univ Fed Sao Carlos, Dept Engenharia Materials
Source: Materials research, 2014, v. 17, no. 4, p. 920-925 How to cite?
Journal: Materials research 
Abstract: Flower- like Co(OH)(2)/C nanocomposites have been synthesized by a facile hydrothermal method. Flower- like Co(OH)(2)/C nanocomposites were self-assembled by the nanosheets with the thickness distribution of 50-80 nm and abundant flocculent carbon structures. With the help of transmission electron microscopy and energy dispersive spectrometer, nanosheets were observed to have core/shell structure, in which Co(OH)(2) worked as cores and amorphous C as shells. When the as-prepared products were heated for 6 h at 180 degrees C, the Co(OH)(2) cores were amorphous. The heating time increased to 10 h, the Co(OH)(2) cores became crystalline. The formation mechanism and the self-assembly evolution process were proposed. The microwave dielectric properties of Co(OH)(2)/C nanocomposites were investigated in the frequency range of 0.03-18 GHz. Compared with the amorphous Co(OH)(2)/C nanocomposites, crystalline nanocomposites had the better conductivity.
URI: http://hdl.handle.net/10397/36141
ISSN: 1516-1439
EISSN: 1980-5373
DOI: 10.1590/1516-1439.251813
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