scholarly journals Preparation of silver/reduced graphene oxide coated polyester fabric for electromagnetic interference shielding

RSC Advances ◽  
2017 ◽  
Vol 7 (64) ◽  
pp. 40452-40461 ◽  
Author(s):  
Can Wang ◽  
Cheng Xiang ◽  
Lin Tan ◽  
Jianwu Lan ◽  
Linghui Peng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Microwave Irradiation ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Polyester Fabric ◽  
Electromagnetic Interference Shielding ◽  
Chemical Reduction Method ◽  
Reduced Graphene

In this study, silver/reduced graphene oxide (Ag/RGO) coated polyester (PET) fabrics with dopamine as adhesive agent were prepared through an efficient chemical reduction method under microwave irradiation.

Cobalt oxide nanoparticle-decorated reduced graphene oxide (Co3O4–rGO): active and sustainable nanoelectrodes for water oxidation reaction

2020 ◽  
Vol 44 (36) ◽  
pp. 15776-15784
Author(s):  
Ajay V. Munde ◽  
Balaji B. Mulik ◽  
Raviraj P. Dighole ◽  
Bhaskar R. Sathe
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Cobalt Oxide ◽  
Water Oxidation ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Oxidation Reactions ◽  
Chemical Reduction Method ◽  
Reduced Graphene ◽  
Oxide Nanoparticle

Herein, cobalt oxide (Co3O4)-decorated reduced graphene oxide (rGO)-based nanoelectrodes were fabricated by the chemical reduction method for electrocatalytic water oxidation reactions.

Boron-doped reduced graphene oxide-based bimetallic Ni/Fe nanohybrids for the rapid dechlorination of trichloroethylene

2017 ◽  
Vol 4 (3) ◽  
pp. 565-576 ◽  
Author(s):  
Rama Shanker Sahu ◽  
Kartick Bindumadhavan ◽  
Ruey-an Doong
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Ni Nanoparticles ◽  
Chemical Reduction Method ◽  
Boron Doped ◽  
Reduced Graphene ◽  
Simple Chemical

In this study, a simple chemical reduction method for the synthesis of novel and efficient graphene-based bimetallic Fe/Ni nanoparticles was developed for the rapid and effective dechlorination of trichloroethylene (TCE).

scholarly journals Obtaining of Reduced Graphene Oxide from Graphite by using Hummer’s and Chemical Reduction Method

2019 ◽  
Vol 2 (3) ◽  
pp. 601-605
Author(s):  
Kübra Yıldız ◽  
Muhammet Uzun
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Graphite Powder ◽  
Chemical Reduction Method ◽  
Graphene Oxides ◽  
Hummers Method ◽  
Reduced Graphene ◽  
Modified Hummers Method

In this study, graphene oxide (GO) was synthesized from graphite using modified Hummers method. According to other methods known in the literature, modified Hummers method; it is simpler and less costly in terms of process steps. In addition, it is safer and environmentally friendly than the Hummers method. Reduced Graphene Oxide (RGO) was obtained by reduction of graphene oxides (GO) synthesized by modified Hummers method. It is understood from the obtained results that GO is synthesized successfully from graphite powder by modified Hummers method and RGO is obtained successfully by reduction of graphene oxides (GO).

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

Lightweight NiFe2O4-Reduced Graphene Oxide-Elastomer Nanocomposite flexible sheet for electromagnetic interference shielding application

2019 ◽  
Vol 166 ◽  
pp. 95-111 ◽  
Author(s):  
Raghvendra Singh Yadav ◽  
Ivo Kuřitka ◽  
Jarmila Vilcakova ◽  
David Skoda ◽  
Pavel Urbánek ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Reduced Graphene

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.

Co/Co3O4 Based Nanoparticles and Their Polymer Composites for Tuned Electromagnetic Interference Shielding Application

2020 ◽  
Vol 20 (5) ◽  
pp. 2847-2857
Author(s):  
Madhvi Tiwari ◽  
M. A. Arya ◽  
Priyesh V. More ◽  
Saurabh Parmar ◽  
Suwarna Datar ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Electronic Devices ◽  
Coconut Oil ◽  
Emi Shielding ◽  
Electromagnetic Interference Shielding ◽  
Chemical Reduction Method ◽  
Cobalt Oxide Nanoparticles ◽  
Network Analyser

The magnetic properties of the metal nanoparticles (NPs) can play remarkable role in electromagnetic interference shielding (EMI Shielding) of many defence and commercial electronic devices. In the present work, coconut oil and PVA capped magnetic cobalt/cobalt oxide nanoparticles (Co/Co3O4 NPs) were synthesized by chemical reduction method and impregnated in polymer matrix to verify their EMI shielding behaviour. The coconut oil capped Co/Co3O4 NPs with presence of hcp and fcc phases were prepared in the size domain of 7–10 nm and the effect of surfactant (the oil) on size and oxidation state was studied by varying the ratios. The shielding efficiencies of Co/Co3O4 NPs PVA nanocomposites were analysed by using vector network analyser (VNA) in X- and Ku-band ranging from 8 GHz–18 GHz. The VNA results showed increased shielding efficiency with increasing concentration of NPs.

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