Controllable synthesis of SiC@Graphene core‐shell nanoparticles via fluidized bed chemical vapor deposition

SiC@Graphene (SiC@G) core‐shell nanoparticles were successfully prepared by a facile fluidized bed (FB) chemical vapor deposition (CVD) method. SiC@G core‐shell nanoparticles with an average size of 10 nm and graphene from 1 to 5 layers with a controllable thickness were obtained by finely adjusting...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2020-09, Vol.103 (10), p.5579-5585
Main Authors: Zhao, Jian, Liu, Malin, Chang, Jiaxing, Shao, Youlin, Liu, Bing, Liu, Rongzheng
Format: Article
Language:English
Subjects:
Chemical vapor deposition
Core-shell particles
core‐shell structure
Fluidized beds
Graphene
nanoparticle
Nanoparticles
Oxidation
Photoelectrons
Raman spectroscopy
Silicon carbide
Spectrum analysis
Thermogravimetric analysis
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Summary:SiC@Graphene (SiC@G) core‐shell nanoparticles were successfully prepared by a facile fluidized bed (FB) chemical vapor deposition (CVD) method. SiC@G core‐shell nanoparticles with an average size of 10 nm and graphene from 1 to 5 layers with a controllable thickness were obtained by finely adjusting the experimental temperatures. The formation of SiC nanoparticles and graphene layers was confirmed by the results of X‐ray diffraction (XRD) and Raman Spectroscopy. The graphene content in SiC@G core‐shell nanoparticles prepared at different temperatures was measured from thermogravimetric analysis (TG), which varied from 5.89% to 11.88 mass%. From X‐ray photoelectron spectroscopy (XPS) results, no absorption assigned to Si‐O band was detected, indicating the effective protection of the SiC nanoparticles against oxidation by the graphene shell to resist oxidation of SiC nanoparticles. This novel method of preparation of SiC@G core‐shell nanoparticles could be applied to large‐scale production and find diverse applications in related fields.
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.17284