Alfa Chemistry is a technology company focused on two-dimensional (2D) nanomaterials. In recent years, 2D graphene oxide (GO) nanosheets have gained interest in various applications. Due to the presence of a large number of oxygen functional groups, monolayer 2D GO nanosheets are insulating, transparent, highly dispersible in eco-friendly water and hydrophilic, with strong adhesion to hydrophilic surfaces, and would be the best candidates. GO can be functionalized in a variety of ways for a variety of applications, including optoelectronics, drug delivery, chemical sensors, membrane filtration, flexible electronics, solar cells, and so on, thanks to its unique structure.
Our R&D team is led by a group of PhDs with extensive research experience and international study. Our 2D graphene oxide solution products can be "personalized" to fit the needs of our customers. Using our solution technique, we can quickly create a large number of GO layers and easily control their thickness by adjusting the solution concentration. Please contact us as soon as possible so that we can assist you in rapidly resolving your application issues.
Graphene Oxide Solution Synthesis and Characterization
Alfa Chemistry provides unique solutions with monolayers and multiple layers of GOs, which we produced by ultrasonically treating high-quality GO crystals synthesized via CVD and then utilizing a modified Hummer reaction process. To generate optically active material, the growth procedure focuses reducing defect density and increasing average flake size.
The sonicated GOs generate extremely crystalline GO monolayers, a few layers, and some deep layers suspended in solution since the starting material, graphite, is highly crystalline. Depending on your needs, we may create single-layer, few-layer, multi-layer, or even bulk-layered solutions.
This graphene oxide is optically active, unlike many others, and can be employed in two-dimensional semiconductor research. The sample is entirely oxygen-saturated, and the material's optical characteristics may be tweaked with a simple heat treatment. The customized solution is stable in the presence of oxygen and can be used to create monolayers on a variety of substrates in as little as 2-10 minutes. The thickness of GO flakes coated on various substrates ranges from 1 L to 10s of layers, with a lateral dimension range of roughly 25 nm to 10 µm.
The structure, chemical composition, crystallinity, composition and surface ends of the GO flakes have been confirmed by scanning electron microscopy (SEM) images, high resolution transmission electron microscopy (HRTEM) images, electron energy dispersive spectroscopy (EDAX), Raman spectroscopy and radio photoelectron spectroscopy (XPS) measurements.
| Specifications |
|
|---|---|
| Identification | The GOs solutions created by delamination of GOs crystals through ultrasonication technique |
| Physical Sizes | 1 to 10 layers thick (thicker fragments may be observed depending on usage), 10 nm to 10 µm lateral dimension. |
| Purity | 99.999% |
| Smoothness | Atomically smooth surface with roughness < 0.35 nm. |
| Crystallinity | Highly crystalline nanomaterials. No amorphous flakes, contaminants or hidden second phases. |
| Dispersant solution | Ethanol, isopropanol, deionized water, NMP, other solvents can be prepared as needed. |
| Stability | High environmental and dispersant stability. |
| Support | We provide full technical support and guarantee your satisfaction with our renowned customers. |
| Characterization Methods | Raman, EDS, AFM, SEM; Contact us for more information |
Please contact us to determine which type of solution you prefer.
Fig 1. SEM morphology of rGO. (Cao N, et al. 2015)
Note
We primarily transport supersaturated 2D solutions that can be diluted to produce vast volumes of solution to reduce shipping expenses. A simple and cost-effective rotary casting procedure deposits the 2D layers onto the chosen substrate. Because of its environmental stability, thermal stability, dispersing characteristics, and non-polluting nature, ethanol is recommended as a dispersant solvent. Please contact us if your research necessitates the use of different solvents.
Reference
- Cao N, et al. (2015). "Study of Reduced Graphene Oxide Preparation by Hummers' Method and Related Characterization." Journal of Nanomaterials. 2015: 168125.
Please kindly note that our products are for research use only.
