scholarly journals Novel Unsaturated Polyester Nanocomposites via Hybrid 3D POSS-Modified Graphene Oxide Reinforcement: Electro-Technical Application Perspective

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 260 ◽  
Author(s):  
Nidhin Divakaran ◽  
Manoj B. Kale ◽  
T. Senthil ◽  
Suhail Mubarak ◽  
Duraisami Dhamodharan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Unsaturated Polyester ◽  
Interactive Effect ◽  
Functionalized Graphene ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Functionalized Graphene Oxide ◽  
Limiting Oxygen Index ◽  
Modified Graphene Oxide ◽  
Hybrid Framework

The latest trends in technologies has shifted the focus to developing innovative methods for comprehensive property enhancement of the polymer composites with facile and undemanding experimental techniques. This work reports an elementary technique to fabricate high-performance unsaturated polyester-based nanocomposites. It focuses on the interactive effect of polyhedral oligomeric silsesquioxanes (POSS)-functionalized graphene oxide (GO) within the unsaturated polymermatrix. The hybrid framework of POSS-functionalized graphene oxide has been configured via peptide bonding between the aminopropyl isobutyl POSS and graphene oxide. The synergistic effect of POSS and graphene oxide paved the way for a mechanism to inculcate a hybrid framework within the unsaturated polyester (UP) via in situ polymerization to develop UP/GO-POSS nanocomposites. The surface-appended POSS within the graphene oxide boosted its dispersion in the UP matrix, furnishing an enhancement in tensile strength of the UP/GO-POSS composites by 61.9%, thermal decomposition temperature (10% mass loss) by 69.8 °C and electrical conductivity by 108 S/m, in contrast to pure UP. In particular, the homogenous influence of the POSS-modified GO could be vindicated in the surging of the limiting oxygen index (%) in the as-prepared nanocomposites. The inclusive property amelioration vindicates the use of fabricated nanocomposites as high-performance nanomaterials in electrotechnical applications.

Stable functionalized graphene oxide–cellulose nanofiber solid electrolytes with long-range 1D/2D ionic nanochannels

2019 ◽  
Vol 7 (36) ◽  
pp. 20871-20877 ◽  
Author(s):  
Wei Jia ◽  
Peiyi Wu
Keyword(s):  
Graphene Oxide ◽  
Fuel Cell ◽  
Long Range ◽  
Solid Electrolytes ◽  
High Performance ◽  
Cellulose Nanofiber ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

High-performance NPGOM-CNF solid electrolytes with long-range 1D/2D ionic nanochannels for fuel cell applications.

Development of bismuth-functionalized graphene oxide to remove radioactive iodine

2019 ◽  
Vol 48 (2) ◽  
pp. 478-485 ◽  
Author(s):  
Sangsoo Han ◽  
Wooyong Um ◽  
Won-Seok Kim
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Radioactive Iodine ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Bismuth-functionalized graphene oxide shows high performance in the removal of radioactive iodine.

scholarly journals Melamine-based functionalized graphene oxide and zirconium phosphate for high performance removal of mercury and lead ions from water

RSC Advances ◽  
2020 ◽  
Vol 10 (62) ◽  
pp. 37883-37897
Author(s):  
Ayyob M. Bakry ◽  
Fathi S. Awad ◽  
Julian A. Bobb ◽  
Amr A. Ibrahim ◽  
M. Samy El-Shall
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Zirconium Phosphate ◽  
Selective Extraction ◽  
Water Sources ◽  
Lead Ions ◽  
Contaminated Water ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

Two novel chelating adsorbents are developed for the effective and selective extraction of Hg(ii) and Pb(ii) ions from contaminated water sources.

Functionalized graphene oxide based on p-phenylenediamine as spacers and nitrogen dopants for high performance supercapacitors

2014 ◽  
Vol 59 (16) ◽  
pp. 1809-1815 ◽  
Author(s):  
Yanhong Lu ◽  
Yi Huang ◽  
Fan Zhang ◽  
Long Zhang ◽  
Xi Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide

scholarly journals Synthesis of Silane Functionalized Graphene Oxide and Its Application in Anti-Corrosion Waterborne Polyurethane Composite Coatings

Coatings ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 587 ◽  
Author(s):  
Chao Chen ◽  
Shicheng Wei ◽  
Bin Xiang ◽  
Bo Wang ◽  
Yujiang Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Corrosion Rate ◽  
Electrochemical Impedance ◽  
Composite Coatings ◽  
Condensation Reaction ◽  
Waterborne Polyurethane ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Polyurethane Composite ◽  
Modified Graphene Oxide

In this study, novel silane functionalized graphene oxide (PVSQ-GO) composite material is synthesized through the hydrolysis condensation reaction of vinyl triethoxysilane monomers occurred at the surface of graphene oxide. Results obtained from FTIR, Raman, X-ray photoelectronic spectroscopy (XPS), XRD and TGA measurements reveal that polyvinyl sesquisiloxane microspheres adhere to graphene oxide lamellae in the form of chemical bonds. Meanwhile, it is intuitive that abundant polyvinyl sesquisiloxane microspheres stick to the surface of graphene oxide and increase the thickness of the flake. Modified graphene oxide changes from hydrophilicity to hydrophobicity were owing to the existence of polyvinyl sesquisiloxane microspheres on the surface of graphene oxide (GO). PVSQ-GO composite exhibited good dispersion in eco-friendly waterborne polyurethane coating. Electrochemical impedance spectroscopy manifested that the anti-corrosion performance of waterborne polyurethane (WPU) coating embedded at 0.5 wt.% PVSQ-GO composite improved effectively. Tafel curves reveal that 0.5 wt.% PVSQ-GO/WPU coating specimen shows the lowest corrosion rate of 8.95 × 10−5 mm/year when compared with the other coating specimens. The good anti-corrosion abilities of PVSQ-GO composite coating can be interpreted as the good compatibility between PVSQ-GO composite and waterborne polyurethane, however, the intrinsic hydrophobicity of PVSQ-GO composite is beneficial to inhibit the permeation of corrosive medium and thus slows down the corrosion rate.

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