scholarly journals Barium ferrite decorated reduced graphene oxide nanocomposite for effective electromagnetic interference shielding

2015 ◽  
Vol 17 (3) ◽  
pp. 1610-1618 ◽  
Author(s):  
Meenakshi Verma ◽  
Avanish Pratap Singh ◽  
Pradeep Sambyal ◽  
Bhanu Pratap Singh ◽  
S. K. Dhawan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Barium Ferrite ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Reduced Graphene

Barium ferrite decorated reduced graphene oxide nanocomposite has been synthesized for absorption dominated enhanced EMI shielding.

scholarly journals Polypropylene Nanocomposite Filled with Spinel Ferrite NiFe2O4 Nanoparticles and In-Situ Thermally-Reduced Graphene Oxide for Electromagnetic Interference Shielding Application

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 621 ◽  
Author(s):  
Yadav ◽  
Kuřitka ◽  
Vilčáková ◽  
Machovský ◽  
Škoda ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Oxide Content ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Polypropylene Nanocomposites ◽  
Reduced Graphene ◽  
Nife2o4 Nanoparticles

Herein, we presented electromagnetic interference shielding characteristics of NiFe2O4 nanoparticles—in-situ thermally-reduced graphene oxide (RGO)—polypropylene nanocomposites with the variation of reduced graphene oxide content. The structural, morphological, magnetic, and electromagnetic parameters and mechanical characteristics of fabricated nanocomposites were investigated and studied in detail. The controllable composition of NiFe2O4-RGO-Polypropylene nanocomposites exhibited electromagnetic interference (EMI) shielding effectiveness (SE) with a value of 29.4 dB at a thickness of 2 mm. The enhanced EMI shielding properties of nanocomposites with the increase of RGO content could be assigned to enhanced attenuation ability, high conductivity, dipole and interfacial polarization, eddy current loss, and natural resonance. The fabricated lightweight NiFe2O4-RGO-Polypropylene nanocomposites have potential as a high performance electromagnetic interference shielding nanocomposite.

Sulfur-doped graphene laminates for EMI shielding applications

2015 ◽  
Vol 3 (38) ◽  
pp. 9802-9810 ◽  
Author(s):  
Faisal Shahzad ◽  
Pradip Kumar ◽  
Seunggun Yu ◽  
Seunghwan Lee ◽  
Yoon-Hyun Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Laminated Structure ◽  
Significant Potential ◽  
Reduced Graphene ◽  
Doped Graphene ◽  
First Time

Herein, for the first time, we demonstrate that a laminated structure of sulfur-doped reduced graphene oxide (SrGO) provides significant potential for electromagnetic interference shielding applications.

Constructing interconnected spherical hollow conductive networks in silver platelets/reduced graphene oxide foam/epoxy nanocomposites for superior electromagnetic interference shielding effectiveness

Nanoscale ◽  
2019 ◽  
Vol 11 (46) ◽  
pp. 22590-22598 ◽  
Author(s):  
Chaobo Liang ◽  
Ping Song ◽  
Hua Qiu ◽  
Yali Zhang ◽  
Xiangteng Ma ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Shielding Effectiveness ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Reduced Graphene ◽  
Electrical Conductivities ◽  
Electromagnetic Interference Shielding Effectiveness ◽  
Spherical Hollow

How to significantly increase electromagnetic interference (EMI) shielding performances by improving electrical conductivities is still a serious challenge.

scholarly journals Green and facile approach to prepare polypropylene/in situ reduced graphene oxide nanocomposites with excellent electromagnetic interference shielding properties

RSC Advances ◽  
2018 ◽  
Vol 8 (53) ◽  
pp. 30412-30428 ◽  
Author(s):  
Gejo George ◽  
Sanu Mathew Simon ◽  
Prakashan V. P. ◽  
Sajna M. S. ◽  
Muhammad Faisal ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Green Route ◽  
Reduced Graphene ◽  
Shielding Properties

Fabrication of PP/in situ reduced GO nanocomposites with excellent EMI shielding capability realized via a facile and green route.

Enhancing the electromagnetic interference shielding of flexible films with reduced graphene oxide-based coatings

2021 ◽  
Vol 158 ◽  
pp. 106341
Author(s):  
Anna Paula Godoy ◽  
Leice G. Amurim ◽  
Alexandre Mendes ◽  
Emerson S. Gonçalves ◽  
Anderson Ferreira ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Flexible Films ◽  
Reduced Graphene

Manipulating the Assembly of the CNC/RGO Composite Film for Superior Electromagnetic Interference Shielding Properties

2021 ◽  
Author(s):  
kexia Jin ◽  
Jianxiong Xing ◽  
Xinge Liu ◽  
Zehui Jiang ◽  
Shumin Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cellulose Nanocrystals ◽  
Electromagnetic Interference ◽  
Practical Application ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
High Mechanical Strength ◽  
Dispersing Agent ◽  
Reduced Graphene ◽  
Shielding Properties

To achieve high mechanical strength electromagnetic interference (EMI) shielding materials for practical application, cellulose nanocrystals (CNC) as a reinforcing and dispersing agent, are intercalated into reduced graphene oxide (RGO) layers,...

scholarly journals Constructing a Segregated Magnetic Graphene Network in Rubber Composites for Integrating Electromagnetic Interference Shielding Stability and Multi-Sensing Performance

Polymers ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 3277
Author(s):  
Jian Wang ◽  
Baohua Liu ◽  
Yu Cheng ◽  
Zhenwan Ma ◽  
Yanhu Zhan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Natural Rubber ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Cyclic Stretching ◽  
Reduced Graphene ◽  
Wearable Electronic ◽  
Emi Se ◽  
Sensing Performance

A flexible, wearable electronic device composed of magnetic iron oxide (Fe3O4)/reduced graphene oxide/natural rubber (MGNR) composites with a segregated network was prepared by electrostatic self-assembly, latex mixing, and in situ reduction. The segregated network offers the composites higher electrical conductivity and more reliable sensing properties. Moreover, the addi-tion of Fe3O4 provides the composites with better electromagnetic interference shielding effectiveness (EMI SE). The EMI shielding property of MGNR composites is more stable under tensile deformation and long-term cycling conditions and has a higher sensitivity to stretch strain compared with the same structure made from reduced graphene oxide/natural rubber (GNR) composites. The EMI SE value of MGNR composites reduces by no more than 2.9% under different tensile permanent deformation, cyclic stretching, and cyclic bending conditions, while that of GNR composites reduces by approximately 16% in the worst case. Additionally, the MGNR composites have a better sensing performance and can maintain stable signals, even in the case of cyclic stretching with a very small strain (0.05%). Furthermore, they can steadily monitor the changes in resistance signals in various human motions such as finger bending, wrist bending, speaking, smiling, and blinking, indicating that the MGNR composites can be used in future wearable electronic flexibility devices.

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