High Concentration (2.5 wt%) Monolayer Graphene Oxide Water Dispersion (25 mg Graphene Oxide per mL Water)
High Concentration Monolayer Graphene Oxide Water Dispersion allows the preparation of custom dispersions of different concentrations by just adding water and sonicating for 30 minutes.
- Form: Dispersion of monolayer graphene oxide sheets
- Particle Size:
- - D90 29.05 - 32.9 μm
- - D50 14.30 - 16.6 μm
- - D10 5.90 - 6.63 μm
- Color: Yellow-brown
- Odor: Odorless
- Dispersibility: Polar solvents
- Solvent: Water
- pH: 1.8 - 2.0
- Concentration: 25 mg/mL (2.5 wt%)
- Monolayer graphene oxide content (measured in 0.5 mg/mL): >95%
- Carbon: 49 – 56%
- Hydrogen: 0 – 1%
- Nitrogen: 0 – 1%
- Sulfur: 0 – 2%
- Oxygen: 41 – 50%
MSE Supplies guarantees the high quality and best price on the market for our graphene products. Buying graphene products from MSE Supplies will save you ~50% or more compared to prices listed by other re-sellers such as Sigma-Aldrich and Cheap Tubes.
Our Graphene Oxide is subjected to a rigorous QC in order to ensure a high quality and reproducibility.
- Amount of residue on evaporation
- pH control
- Elemental Analysis
If your application requires more specific quality control, please do not hesitate to contact us.
Graphene/polymer composite materials, Batteries, Biomedical, Solar cells, Supercapacitors, Support for metallic catalysts, Low permeability materials, Biosensors, Multifunctional materials, Graphene research
“Flexible solid state lithium batteries based on graphene inks”
J. Mater. Chem., 2011,21, 9762-9767 doi: 10.1039/C1JM10826C
“Enabling Graphene Oxide Nanosheets as Water Separation Membranes”
Environ. Sci. Technol., 2013, 47 (8), pp 3715-3723; doi: 10.1021/es40057g
“Graphene Oxide for effective radionuclide removal”
Phys. Chem. Chem. Phys., 2013, 15, 2321-2327; doi: 10.1039/C2CP44593J
FREQUENTLY ASKED QUESTIONS
A: The lateral dimensions of the GO are below 10 microns but usually around 1-2microns.
A: The surface area in dispersion form is not possible to measure since most techniques require the dry form and GO tends to agglomerate when water is removed. All GO surface is exposed to the water when it is in dispersion form so the surface area should be very high. The GO flakes are monolayer thick (2nm measured via AFM) in dilute dispersions.
A: Our GO is dispersed in water because it is very stable and no surfactant is needed. GO is functionalized with epoxy, alcohol and COOH groups on its edges. These functional groups make GO highly hydrophilic and also it loses part of its sp2 hybridization, making GO insulating. In order to recover conductivity is has to be reduced. We can work with other solvents, please contact us to know more about it.
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