Technical Specification:
- Material Composition:
- Material: Single-Layer Graphene Oxide (GO).
- Consists of monolayer sheets of graphene oxide derived from graphite.
- Purity: 99.5%.
- Ensures minimal impurities, optimizing performance for advanced applications.
- Material: Single-Layer Graphene Oxide (GO).
- Physical Properties:
- Form: Brownish-yellow powder or aqueous dispersion.
- Layer Thickness: ~1 nm, confirming a single-layer structure.
- Lateral Size: Typically ranges from <1 µm to several micrometers, depending on synthesis.
- Specific Surface Area: High, typically >700 m²/g.
- Oxygen Content: 30–50% by weight, depending on oxidation level.
- Chemical Properties:
- Functional Groups:
- Rich in oxygen-containing groups: hydroxyl (-OH), carboxyl (-COOH), and epoxy (-C-O-C).
- Dispersibility:
- Excellent in water and polar solvents, forming stable colloidal solutions.
- pH:
- Slightly acidic to neutral, based on dispersion medium.
- Functional Groups:
- Thermal and Electrical Properties:
- Thermal Stability:
- Decomposes at temperatures >200°C, losing oxygen functional groups.
- Electrical Conductivity:
- Insulating due to oxygen groups but can be restored to conductive reduced graphene oxide (rGO) through chemical or thermal reduction.
- Thermal Stability:
- Packaging:
- Supplied as a powder or dispersion in containers ranging from 10 g to 1 kg or larger for industrial use.
Applications:
- Primary Applications:
- Energy Storage:
- Serves as an electrode material in lithium-ion batteries, supercapacitors, and fuel cells.
- Coatings and Films:
- Forms barrier layers with excellent mechanical and thermal properties.
- Advanced Composites:
- Enhances electrical, mechanical, and thermal properties of polymers, ceramics, and metals.
- Energy Storage:
- Industries:
- Electronics:
- Used in flexible circuits, transparent conductive films, and sensors.
- Energy:
- Improves performance in energy storage devices like batteries and supercapacitors.
- Biomedical:
- Applied in drug delivery systems, biosensors, and tissue engineering.
- Environmental:
- Used in water treatment and pollutant adsorption.
- Electronics:
- Advantages for Applications:
- High Surface Area:
- Facilitates ion and molecular interactions, especially in energy storage and catalysis.
- Excellent Dispersibility:
- Allows uniform coatings and easy integration into composites.
- Functionalization:
- Oxygen groups enable chemical modifications for specific applications.
- Mechanical Strength:
- Improves durability and flexibility in composite materials.
- High Surface Area:
- Specialized Uses:
- Catalysis:
- Acts as a catalyst or catalyst support in chemical reactions.
- Sensors:
- Enhances sensitivity and specificity in gas and chemical sensors.
- Membranes:
- Used in filtration for water purification and gas separation.
- Nanotechnology:
- Serves as a template for fabricating advanced nanostructures.
- Catalysis:
- Challenges and Mitigation:
- Electrical Insulation:
- Pristine GO is electrically insulating due to oxygen functional groups.
- Solution: Reduce GO to rGO for applications requiring conductivity.
- Pristine GO is electrically insulating due to oxygen functional groups.
- Stability in Solution:
- GO dispersions may settle over time.
- Solution: Shake or ultrasonicate before use.
- GO dispersions may settle over time.
- pH Sensitivity:
- pH may affect stability and application.
- Solution: Adjust pH as needed for specific applications.
- pH may affect stability and application.
- Electrical Insulation:
Storage Guidelines:
- Temperature: Store in a cool, dry place, away from direct sunlight or freezing conditions.
- Container: Use airtight containers to prevent contamination and moisture absorption.
- Handling: Employ appropriate safety measures to avoid inhalation or contact with skin.
Summary:
Single-Layer Graphene Oxide with 99.5% purity is a versatile nanomaterial ideal for applications in energy storage, coatings, composites, and advanced electronics. Its high surface area, excellent dispersibility, and oxygen-functionalized surface enable integration into diverse systems, making it indispensable for industrial and research purposes. Proper storage and handling ensure consistent performance and long-term stability.