Graphene Oxide (4 mg/mL, Water Dispersion 5000 mL)
Our graphene oxide is noted for its mechanical and thermal properties. The raw material - graphite - is chemically processed to obtain monolayer flakes of graphene oxide.
- · Form: Dispersion of graphene oxide sheets
- · Sheet dimension: Variable
- · Color: Yellow-brown
- · Odor: Odorless
- · Dispersibility: Polar solvents
- · Solvent: Water
- · pH: 2,2 - 2,5
- · Concentration: 4 mg/mL
- · Monolayer content (measured in 0.5 mg/mL): >95% (*)
- · Carbon: 49 – 56%
- · Hydrogen: 0 – 1%
- · Nitrogen: 0 – 1%
- · Sulfur: 0 – 2%
- · Oxygen: 41 – 50%
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 GO is a polydisperse material where most of the particles have a size around 15 μm, as shows the next results measured by laser diffraction:
- - D90 29.05 - 32.9 μm
- - D50 14.30 - 16.6 μm
- - D10 5.90 - 6.63 μm
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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