Study on the physico-chemical properties of reduced graphene oxide with different degrees of reduction temperature

2020 ◽  
Author(s):  
Pankaj Kumar ◽  
Neetu Divya ◽  
Jatinder Kumar Ratan
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Chemical Properties ◽  
Reduction Temperature ◽  
Physico Chemical ◽  
Reduced Graphene

scholarly journals Tuning Properties of Partially Reduced Graphene Oxide Fibers upon Calcium Doping

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 957 ◽  
Author(s):  
Krzysztof Tadyszak ◽  
Jacek K. Wychowaniec ◽  
Karol Załęski ◽  
Emerson Coy ◽  
Łukasz Majchrzycki ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Chemical Properties ◽  
Fiber Axis ◽  
Paramagnetic Resonance ◽  
Physico Chemical ◽  
Reduced Graphene ◽  
Calcium Doping ◽  
Bulk Structures ◽  
Pulsed Electron Paramagnetic Resonance ◽  
Electron Paramagnetic

The arrangement of two-dimensional graphene oxide sheets has been shown to influence physico-chemical properties of the final bulk structures. In particular, various graphene oxide microfibers remain of high interest in electronic applications due to their wire-like thin shapes and the ease of hydrothermal fabrication. In this research, we induced the internal ordering of graphene oxide flakes during typical hydrothermal fabrication via doping with Calcium ions (~6 wt.%) from the capillaries. The Ca2+ ions allowed for better graphene oxide flake connections formation during the hydrogelation and further modified the magnetic and electric properties of structures compared to previously studied aerogels. Moreover, we observed the unique pseudo-porous fiber structure and flakes connections perpendicular to the long fiber axis. Pulsed electron paramagnetic resonance (EPR) and conductivity measurements confirmed the denser flake ordering compared to previously studied aerogels. These studies ultimately suggest that doping graphene oxide with Ca2+ (or other) ions during hydrothermal methods could be used to better control the internal architecture and thus tune the properties of the formed structures.

The effect of the thermal reduction temperature on the structure and sorption capacity of reduced graphene oxide materials

2016 ◽  
Vol 361 ◽  
pp. 213-220 ◽  
Author(s):  
Alexandr V. Dolbin ◽  
Maria V. Khlistyuck ◽  
Valentin B. Esel'son ◽  
Viktor G. Gavrilko ◽  
Nikolay A. Vinnikov ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Sorption Capacity ◽  
Thermal Reduction ◽  
Oxide Materials ◽  
Reduction Temperature ◽  
Reduced Graphene

Progress of Graphene-Based Hydrogel

2016 ◽  
Vol 852 ◽  
pp. 714-719
Author(s):  
Yu Xiang ◽  
Li Bin Liu ◽  
Zhao Dang ◽  
Ting Li
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Reduced Graphene ◽  
Physical And Chemical ◽  
Significant Attention ◽  
And Chemical Properties

Graphene, a typical two-dimensional planar monolayer of sp2carbon atoms, has attracted significant attention due to its outstanding physical and chemical properties. Nowadays, many graphene-based composites have been synthesized. Among them, graphene hydrogels (including graphene oxide hydrogel and reduced graphene oxide hydrogel) as a kind of graphene-based composites have a wide application prospect. In this paper, the progresses of graphene-based hydrogels are reviewed, and the prospects for the development of graphene-based hydrogels are also discussed.

Studying Physical and Chemical Properties of Graphene Oxide and Reduced Graphene Oxide and Their Applications in Sustainable Building Materials

2021 ◽  
pp. 221-238
Author(s):  
Omar Ibrahim ◽  
Savaş Erdem ◽  
Ezgi Gurbuz
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Carbon Nanostructures ◽  
Building Materials ◽  
Chemical Properties ◽  
Sustainable Building ◽  
Reduced Graphene ◽  
Electron Holes ◽  
Physical And Chemical ◽  
High Suction

In this chapter, the authors identified graphene oxide (OG)/reduced graphene oxide (RGO) as nano composites by studying its nanoparticles' properties physically, chemically, and mechanically. In this study, they mentioned the photo catalyst materials PC regarding carbon nanostructures such as GO and RGO, which have excellent oxygen functionalities, efficient adsorption areas, and considerable surface area. The compositions of GO and RGO exceed electron-holes pair reinstallation time and minimize energy hiatus by adjusting valence band level (VBL) with conducting band level (CBL) bringing high suction of the exist radiance, which improves photo degeneration achievement of material oxides and composites made from polymers. They also studied the main applications of GO and RGO in engineering fields and summarized the usefulness of intercalation of GO and RGO in construction sectors. Moreover, many synthesis techniques lead to many types of GO. Therefore, in this chapter, the authors tried to collect most GO and RGO properties, structures, and applications.

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