Fabrication of Reduced Graphene Oxide (RGO)/Co3O4Nanohybrid Particles and a RGO/Co3O4/Poly(vinylidene fluoride) Composite with Enhanced Wave-Absorption Properties

Autor:	Lidong Li, Yun Wu, Penggang Yin, Xiao-Juan Zhang, Bo Wen, Yun-Zhao Wei, Mao-Sheng Cao, Guang-Sheng Wang, Yong Li, Lin Guo
Rok vydání:	2014
Předmět:	Nanostructure Fabrication Materials science Graphene Composite number Oxide Graphite oxide General Chemistry law.invention chemistry.chemical_compound chemistry Chemical engineering law Absorption (electromagnetic radiation) Fluoride
Zdroj:	ChemPlusChem. 79:375-381
ISSN:	2192-6506
DOI:	10.1002/cplu.201300345
Popis:	Reduced graphene oxide (RGO)/Co3 O4 nanohybrid particles, composed of reduced graphite oxide and Co3 O4 particles, have been fabricated by an in situ growth method under mild wet-chemical conditions (140 °C). A series of characterization results indicate that the as-prepared Co3 O4 particles with relatively uniform sizes are embedded in RGO layers to form unique core-shell nanostructures. The RGO/Co3 O4 /poly(vinylidene fluoride) composite was found to possess excellent absorption properties. Owing to the effect of the negative permeability, the position of the absorption peaks remains at the same frequency at different thicknesses without shifting to lower frequencies. For the composites with a filler loading of 10 wt %, the maximum peaks can reach -25.05 dB at 11.6 GHz with a thickness of 4.0 mm. These enhanced microwave absorbing properties can be explained based on the structures of the nanohybrid particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::26a3553719b0dd118fab971f8ba5423f https://doi.org/10.1002/cplu.201300345 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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