Optical and physical properties of iridescent photonic crystals obtained by self-assembled polymethyl methacrylate nanospheres within graphene oxide nanoplatelets

2017 ◽  
Vol 29 (1) ◽  
pp. 244-253 ◽  
Author(s):  
Nabila Haddadine ◽  
Karima Agoudjil ◽  
Khaled Abouzeid ◽  
Carlos E. Castano ◽  
Naima Bouslah ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Photonic Crystals ◽  
Physical Properties ◽  
Polymethyl Methacrylate ◽  
Self Assembled

scholarly journals Hydrophobic Modification of Graphene Oxide and Its Effect on the Corrosion Resistance of Silicone-Modified Epoxy Resin

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 89
Author(s):  
Wei Yuan ◽  
Qian Hu ◽  
Jiao Zhang ◽  
Feng Huang ◽  
Jing Liu
Keyword(s):  
Contact Angle ◽  
Corrosion Resistance ◽  
Graphene Oxide ◽  
Physical Properties ◽  
Epoxy Resin ◽  
Electrochemical Impedance ◽  
Salt Spray ◽  
X Ray ◽  
Modified Graphene Oxide ◽  
Modified Epoxy

This study modified graphene oxide (GO) with hydrophilic octadecylamine (ODA) via covalent bonding to improve its dispersion in silicone-modified epoxy resin (SMER) coatings. The structural and physical properties of ODA-GO were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and contact angle tests. The ODA-GO composite materials were added to SMER coatings by physical mixing. FE-SEM, water absorption, and contact angle tests were used to evaluate the physical properties of the ODA-GO/SMER coatings, while salt spray, electrochemical impedance spectroscopy (EIS), and scanning Kelvin probe (SKP) methods were used to test the anticorrosive performance of ODA-GO/SMER composite coatings on Q235 steel substrates. It was found that ODA was successfully grafted onto the surfaces of GO. The resulting ODA-GO material exhibited good hydrophobicity and dispersion in SMER coatings. The anticorrosive properties of the ODA-GO/SMER coatings were significantly improved due to the increased interfacial adhesion between the nanosheets and SMER, lengthening of the corrosive solution diffusion path, and increased cathodic peeling resistance. The 1 wt.% ODA-GO/SMER coating provided the best corrosion resistance than SMER coatings with other amounts of ODA-GO (including no addition). After immersion in 3.5 wt.% NaCl solution for 28 days, the low-frequency end impedance value of the 1 wt.% ODA-GO/SMER coating remained high, at 6.2 × 108 Ω·cm2.

scholarly journals Extraordinary thermal behavior of graphene oxide in air for electrode applications

2021 ◽  
Author(s):  
Joong Tark Han ◽  
Joon Young Cho ◽  
Jeong Hoon Kim
Keyword(s):  
Thermal Stability ◽  
Graphene Oxide ◽  
Physical Properties ◽  
Thermal Behavior ◽  
Stability Of Solution ◽  
Exfoliated Graphene ◽  
Potential Applications ◽  
Thermal Stability Of

The thermal stability of solution-exfoliated graphene oxide (GO) in air is one of the most important physical properties influencing its potential applications. To date, majority of the GO prepared by...

scholarly journals High Electrical Anisotropic Multilayered Self‐Assembled Organic Films Based on Graphene Oxide and PEDOT:PSS (Adv. Electron. Mater. 8/2021)

2021 ◽  
Vol 7 (8) ◽  
pp. 2170033
Author(s):  
Gabriel Gaál ◽  
Maria Luisa Braunger ◽  
Varlei Rodrigues ◽  
Antonio Riul ◽  
Henrique Leonel Gomes
Keyword(s):  
Graphene Oxide ◽  
Organic Films ◽  
Self Assembled

scholarly journals Self-assembled albumin decorated MoS2 aggregates and photo-stimuli induced geometrical switching for enhanced theranostics applications

2020 ◽  
Vol 1 (8) ◽  
pp. 3000-3008
Author(s):  
Lakshmi Narashimhan Ramana ◽  
Rajeev J. Mudakavi ◽  
Ashok M. Raichur
Keyword(s):  
Graphene Oxide ◽  
2D Materials ◽  
Molybdenum Sulfide ◽  
Self Assembled

2D materials such as graphene oxide and molybdenum sulfide exhibit certain properties such as photoluminescence, photothermal and photodynamic effects that have potential in diagnosing and treating cancer.

Physical properties of graphene oxide GO-doped ZnO thin films for optoelectronic application

2021 ◽  
Vol 127 (2) ◽  
Author(s):  
M. Karyaoui ◽  
D. Ben Jemia ◽  
M. Daoudi ◽  
A. Bardaoui ◽  
A. Boukhachem ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Physical Properties ◽  
Zno Thin Films ◽  
Optoelectronic Application ◽  
Doped Zno
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