Shop

Synonyms
GO dispersion in H2O

Cas No.
–

General description
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with “Design for energy efficency”. High concentrated graphene oxide sheets provide the prerequisite viscosity to bind the electrode materials together and enable 3D printing. Using water as a green solvent makes this aqueous ink system feasible for processing and drying safety and low cost. Click here for more information.

Application
GO may be used to deliver a controlled dosage of bone morphogenetic protein-2 for bone regeneration.[1] It may be used to fabricate graphene-based transparent conductive electrodes.[2] GO is attractive for use in electronic devices. In addition to being the components in electronic devices, GO and rGO have been used in nanocomposite materials, polymer composite materials, energy storage, biomedical applications, catalysis and as surfactants.

Preparation Note
Seal well, prevent from light and store it in a cool room.

Synonyms
Graphene oxide nanoplatelets

Cas No.
–

General description
Handling of large quantities of GO powder is not recommended since graphene oxide powder is thermally unstable. Graphene oxide paste can make storage and transportation of large quantities in a safe manner. Graphene oxide solutions of desired concentration or graphene oxide paper or sheet can be made from graphene oxide paste. Sonication is required to obtain single layers of graphene oxide. To make a concentrated aqueous dispersion that will not settle under gravity: add 25 mL water/1 g paste, stir overnight for 16 h, sonicate for 30 minutes in a mild bath sonicator. Centrifuge (effective diameter of the rotor is 23 cm) at 3500 rpm for 10 minutes to remove any large unexfoliated particles and decant the supernate to give ∼2 mg/mL graphene oxide in water. The above concentrate can be diluted and sonicated further to get single layer graphene oxide.

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with “Design for energy efficency”. High concentrated graphene oxide sheets provide the prerequisite viscosity to bind the electrode materials together and enable 3D printing. Using water as a green solvent makes this aqueous ink system feasible for processing and drying safety and low cost. Click here for more information.

Application

• Composites.
• Inks and coatings.
• Transparent conductive films.
• Supercapacitors.
• Batteries.
• Graphene oxide sheets at interfaces.

This product can be used in material extrusion 3D printing technique.

Synonyms
GQDs

Cas No.
7440-44-0

General Descriptions
Graphene quantum dots (GQDs) have the potential to be applied towards next-generation electronics and energy applications. Graphene itself does not possess band gap energy, and its usage is limited. However, when their size becomes as small as quantum dots, they exhibit photoluminescence in the ultraviolet, visible, and near infrared ranges. The size of graphene quantum dots ranges approximately 1-4 nm. Due to their quantum confinement effect, GQDs can be applied to photovoltaic devices such as solar cells, bio imaging (cancer cell imaging, protein analysis, cell tracking), various types of sensors, etc.

Application

• Bio-imaging.
• Photocatalysis.
• LED.
• Energy conversion.
• Sensing.

Synonyms
GQDs

Cas No.
7440-44-0

General Descriptions
Graphene quantum dots (GQDs), sheets of few-layered graphene and lateral dimensions smaller than 100 nm, possess strong quantum confinement and edge effects. Thus, they possess unique physical properties such as strong photoluminescence, which can be tailored for specific applications by controlling their size, shape, defects, and functionality.
In contrast to classic QDs, such as metal or silicon quantum dots, GQDs are biocompatible, photo-stable, and inherit superior thermal, electrical, and mechanical properties from the graphene. These features can greatly contribute to various state-of-the-art applications:

• Optical brighteners.
• Taggants for security applications.
• Bioimaging markers.
• Fluorescent polymers.
• Antibacterial, antibiofouling, disinfection systems.
• Heavy metals, humidity and pressure sensors.
• Batteries.
• Flash memory devices.
• Photovoltaic devices.
• Light-emitting diodes.

Synonyms
GQDs

Cas No.
7440-44-0

Application
Graphene quantum dots (GQDs), sheets of few-layered graphene and lateral dimensions smaller than 100 nm, possess strong quantum confinement and edge effects. Thus, they possess unique physical properties such as strong photoluminescence, which can be tailored for specific applications by controlling their size, shape, defects, and functionality. In contrast to classic QDs, such as metal or silicon quantum dots, GQDs are biocompatible, photo-stable, and inherit superior thermal, electrical, and mechanical properties from the graphene. These features can greatly contribute to various state-of-the-art applications:

• Optical brighteners.
• Taggants for security applications
• Bio-imaging markers.
• Fluorescent polymers.
• Antibacterial, antibiofouling, disinfection systems.
• Heavy metals, humidity and pressure sensors.
• Batteries.
• Flash memory devices.
• Photovoltaic devices.
• Light-emitting diodes.

Synonyms
–

Cas No.
–

General description

• Functionalization agent: Octadecylamine.
• Solubility: Organic solvent.
• Thickness: 1-5 layers.
• Lateral size : 0.5-5 μm.

Application

• Polymer filler to improve thermal, electrical and mechanical properties.
• Rubber filler to improve mechanical and gas barrier properties.
• Hydrophobic surface.
• Lubrication.

Synonyms
Few layers graphene, graphene powder

Cas No.
–

General description

• Thickness: <3 layers.
• Lateral size : 0.5-5 μm.

Graphene is a single-atom-thick sheet of hexagonally arranged sp2-bonded carbon atoms. It can be prepared by various methods, such as mechanical exfoliation of graphite, micromechanical cleavage, arc discharge process, and chemical vapor deposition. Owing to its exceptional properties, it finds application in the fields of flexible electronics, biosensors, solar cells, anti corrosion coatings and drug delivery systems.

Application
Graphene can be used as a base material for flexible electronic devices due to its super electrical conductivity and large surface area. Graphene-based flexible electrodes show significant improvements in energy density and power density.

Graphene/polyaniline nanocomposites- modified electrodes can be used for the determination of heavy metals.

Heat-treated graphene nanosheets can be used to prepare solid adsorbents for rapid and selective CO2 capture applications.

Features and Benefits

• Superior electrical conductivity
• Large surface area
• High mechanical strength
• High degree of flexibility

Synonyms
–

Cas No.
–

General description
Hafnium-containing multifunctional acrylate useful for producing cured, transparent films with high refractive indices.
Please see product no. 686204 for additional application and usage information (Aldrich Technical Bulletin AL-238)