Graphene Oxide Film by Filtration of Monolayer Graphene Oxide Dispersion
Graphene Oxide Film
The Graphene Oxide Film is prepared by the filtration of a Monolayer Graphene Oxide dispersion.
- · Diameter: 4 cm
- · Thickness: 12-15 μm
- · Non-conductive
MILLIPORE FILTER SPECIFICATIONS
- · Pore Size: 0.025 μm
- · Thickness: 105 μm
- · Porosity: 70%
- · Material: Biologically inert mixtures of cellulose acetate and cellulose nitrate
- · Carbon: 49 – 56%
- · Hydrogen: 0 – 1%
- · Nitrogen: 0 – 1%
- · Sulfur: 0 – 2%
- · Oxygen: 41 – 50%
Our Graphene Oxide Filters are subjected to a rigorous QC in order to ensure a high quality and reproducibility.
If your application requires more specific quality control, please do not hesitate to contact us.
- · Biomedical, membranes, Graphene research...
“Precise and Ultrafast Molecular Sieving Through Graphene Oxide Membranes”, Science 343, 752 (2014)
“Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material ”, Nature Vol. 3, May 2008
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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