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Journal of Materials Chemistry C Vol - 2 Issue - 39

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Preparation and enhanced electro-responsive characteristic of graphene/layered double-hydroxide composite dielectric nanoplates

Content Provider	Royal Society of Chemistry (RSC)
Author	Dong, Yuezhen Liu, Yang Yin, Jianbo Zhao, Xiaopeng
Copyright Year	2014
Abstract	To combine the advantages of a conducting graphene nanosheet (GNS) and insulating layered inorganic, we used a simple one-pot hydrothermal method to prepare two-dimensional dielectric nanoplates composed of a GNS/Mg–Al layered double-hydroxide (GNS/LDH) composite for use as a novel anisotropic electro-responsive electrorheological (ER) material. The structures of the samples were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, and scanning electron microscopy. The conductivity and dielectric properties were measured by an impedance analyzer, and the electro-responsive ER characteristic of the GNS/LDH composite dispersed in insulating oil was characterized by a rheometer. The results demonstrate that the LDH can provide an electrically insulating effect for GNS, while the incorporation of the conducting GNS can enhance the dielectric polarization of LDH. The GNS/LDH composite shows a significantly stronger ER effect compared to the pure LDH, especially under AC electric fields due to the enhanced polarization response.
Starting Page	10386
Ending Page	10394
Page Count	9
File Format	HTM / HTML PDF
ISSN	20507526
Volume Number	2
Issue Number	48
Journal	Journal of Materials Chemistry C
DOI	10.1039/c4tc02085e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	LDH GNS AC Fourier Raman Graphene Nanosheet Hydrothermal circulation Dielectric Lactate dehydrogenase Anisotropy Endoplasmic reticulum Fourier-transform infrared spectroscopy X-ray scattering techniques X-ray photoelectron spectroscopy Photoemission spectroscopy Raman spectroscopy Scanning electron microscope Antenna analyzer Rheometer
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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