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High Density Graphene Oxide

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Graphene oxide with high density. Brownish Yellow Powder.

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Product Detail

CAS No.: 7782-42-5

1. Preparation Method: Modified HUMMER’S method

2. Characterizations

Type:

Type A

Appearance:

Brownish Yellow Powder

Purity:

~ 99%

Lateral size:

1-5 μm

Thickness:

0.8-1.2 nm

Monolayer Rate:

~ 99%

Carbon Content:

~51.26 wt.%

Oxygen Content:

~40.78 wt.%

Sulfur Content:

N/A

Density:

~270g/L

Photos of High Density Graphene Oxide

*TEM of High Density Graphene Oxide (Type A)

*AFM of High Density Graphene Oxide (Type A)

*The TEM and AFM analysis were completed through dispersing ACS-Material Graphene Oxide into water or ethanol with the help of ultrasound

Application Fields

Supercapacitors; Catalyst; Solar energy; Graphene semiconductor chips; Conductive graphene film; Graphene computer memory; Biomaterials; Transparent conductive coatings.

Graphene oxide will be supplied as a loose powder‚ and it has good solubility in water‚ ethanol‚ DMF et al. The dispersion concentration of graphene oxide with high surface area in water will be larger than 5 mg/ml. Graphene oxide can be easily dispersed in polar solvents with the help of ultrasound. If you have any questions‚ please contact with us‚ and we will try our best to provide the solutions for you.

Attentions

This graphene oxide with high density is easier to be oxidized than the normal graphene oxide‚ and it should be kept out of the sun.

*The research demonstrates that a common contaminant (some potassium salt residues) in graphite oxide renders the material highly flammable. The properties of graphene oxide are similar with graphite oxide. ACS Material-Graphene oxide has been purified for many times‚ and the potassium salt is removed completely. Therefore the consumers can use ACS Material-Graphene oxide without any hesitation.
*Kim F‚ Luo J‚ Cruz-Silva R et al. Self-propagating domino-like reactions in oxidized graphite‚ Advanced Functional Materials‚ 2010‚ 20 (17): 2867-2873.

Disclaimer: ACS Material LLC believes that the information on our website is accurate and represents the best and most current information available to us. ACS Material makes no representations or warranties either express or implied, regarding the suitability of the material for any purpose or the accuracy of the information listed here. Accordingly, ACS Material will not be responsible for damages resulting from use of or reliance upon this information.

FAQ

How do I disperse single layer Graphene Oxide into a suitable carrier?

For dispersion in water
1) Use distilled or deionized water
2) Add graphene powder
3) Use sonication power of 200W for about 2 hours

For dispersion in ethanol
1) Use pure ethanol
2) Add graphene powder
3) Use sonication power of 200W for about 4 hours

Is Graphene Oxide fully oxidized? What is the C:O ratio?

Graphene Oxide (GO) is produced by the classic modified Hummer’s method‚ which yields an oxidization level of ≥95%. Regarding the C:O ratio‚ there is some variance inherent in the manufacturing process but the figures below give you an approximation of what to expect:

Sample                N (wt %)       C (wt %)     O (wt %)    C/O at. ratio
Graphene Oxide         0               51.26          40.78            1.67

NOTE: This graphene oxide with high surface area is easier to be oxidized than the normal graphene oxide‚ and it should be kept out of the sun.

Research Citations of ACS Material Products

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