CAS No.: 7782-42-5
1. Preparation Method: Modified HUMMER’S method
2. Characterizations
|
Type: |
Type A |
Type B |
|
Appearance: |
Brownish Yellow Powder |
Brownish Grey Powder |
|
Purity: |
~ 99% |
~ 99% |
|
Lateral size: |
1-5 μm |
0.2-10 μm |
|
Thickness: |
0.8-1.2 nm |
~1 nm |
|
Monolayer Rate: |
~ 99% |
>90% |
|
Carbon Content: |
~51.26 wt.% |
~46 wt.% |
|
Oxygen Content: |
~40.78 wt.% |
~50 wt.% |
|
Sulfur Content: |
N/A |
<1.5 wt.% |
|
BET: |
>100 m2/g |
~400 m2/g |
High Surface Area Graphene Oxide
*TEM of High Surface Area Graphene Oxide (Type A)
*AFM of High Surface Area 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
Typical SEM Image of ACS Material High Surface Area Graphene Oxide (Type B)
Typical TEM Imagae of ACS Material High Surface Area Graphene Oxide (Type B)
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 surface area is easier to be oxidized than the normal graphene oxide‚ and it should be kept out of the sun.
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.
Reviews
There are no reviews yet.