Enhanced Microwave Absorption: The Composite of Fe 3 O 4 Flakes and Reduced Graphene Oxide with Improved Interfacial Polarization

2020 ◽  
Vol 22 (4) ◽  
pp. 1901299 ◽  
Author(s):  
Shangqing Jiao ◽  
Mingzai Wu ◽  
Xinxin Yu ◽  
Hui Zhang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Microwave Absorption ◽  
Interfacial Polarization ◽  
Reduced Graphene

CoFe2O4/N-doped reduced graphene oxide aerogels for high-performance microwave absorption

2020 ◽  
Vol 388 ◽  
pp. 124317 ◽  
Author(s):  
Xiangyu Wang ◽  
Yukai Lu ◽  
Tao Zhu ◽  
Shucheng Chang ◽  
Wei Wang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Microwave Absorption ◽  
High Performance ◽  
Reduced Graphene

Superior microwave absorption properties of ultralight reduced graphene oxide/black phosphorus aerogel

2018 ◽  
Vol 29 (23) ◽  
pp. 235604 ◽  
Author(s):  
Chunxue Hao ◽  
Bochong Wang ◽  
Fusheng Wen ◽  
Congpu Mu ◽  
Jianyong Xiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Microwave Absorption ◽  
Black Phosphorus ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Reduced Graphene

scholarly journals Dielectric Polarization and Electrorheological Response of Poly(ethylaniline)-Coated Reduced Graphene Oxide Nanoflakes with Different Reduction Degrees

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2528
Author(s):  
Yudong Wang ◽  
Min Yang ◽  
Honggang Chen ◽  
Xiaopeng Zhao ◽  
Jianbo Yin
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electric Fields ◽  
Flow Instability ◽  
Interfacial Polarization ◽  
Simultaneous Action ◽  
Dielectric Polarization ◽  
Polarization Rate ◽  
Reduced Graphene ◽  
The Difference

We prepared poly(ethylaniline)-coated graphene oxide nanoflakes and then treated them with different concentrations of hydrazine solution to form dielectric composite nanoflakes having different reduction degrees of reduced graphene oxide core and insulating polyethylaniline shell (PEANI/rGO). The morphology of PEANI/rGO was observed by scanning electron microscopy, while the chemical structure was confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectrometer. The influence of reduction degrees on the conductivity, dielectric polarization and electrorheological effect of PEANI/rGO in suspensions was investigated by dielectric spectroscopy and rheological test under electric fields. It shows that the PEANI/rGO has two interfacial polarization processes respectively due to rGO core and PEANI shell. As the number of hydrazine increases, the conductivity and polarization rate of rGO core increase. As a result, the difference between the polarization rate of rGO core and that of the PEANI shell gradually becomes large. This increased difference does not significantly decrease the yield stress but causes the flow instability of PEANI/GO suspensions under the simultaneous action of electric and shear fields.

Sign in / Sign up

Export Citation Format

Share Document