Carbon & 2D materialsPC-208
Source GNP powder to your specification.
Send a product code, the size you need or what you plan to make. We’ll look for suitable supply options and clarify the specifications, documents and delivery terms.
No fixed minimum order at Nike. Tell us your quantity and destination. We’ll check availability, supplier minimums and delivery timing.
GNP powder selection references
Compare four specification profiles. Choose the closest reference or send your own target.
| Property | Reference A · thickness / lateral size1–5 nm · ~5 µm | Reference B · thickness / lateral size~2 nm · 2–3 µm | Reference C · thickness / lateral size2–10 nm · 2–7 µm | Reference D · thickness / lateral size~20 nm · 0.2–1 µm |
|---|---|---|---|---|
| Thickness | 1–5 nm | ~2 nm | 2–10 nm | ~20 nm |
| Lateral size | ~5 µm | 2–3 µm | 2–7 µm | 0.2–1 µm |
| BET surface area | 90–130 m²/g | — | 20–40 m²/g | ~80 m²/g |
| Carbon content | — | — | >99% | ~96% |
| Purity | — | 98% | — | — |
| What we’ll verify | We’ll check the size distribution and available dispersion guidance for your matrix. | We’ll check the purity definition, test method and reported impurities. | We’ll check the carbon test method and available oxygen and impurity data. | We’ll check how thickness and lateral size were measured and whether PSD includes agglomerates. |
| Your next step | Review inquiry for 1–5 nm · ~5 µm | Review inquiry for ~2 nm · 2–3 µm | Review inquiry for 2–10 nm · 2–7 µm | Review inquiry for ~20 nm · 0.2–1 µm |
Reference A · thickness / lateral size
Carbon content, Purity
What we’ll verify: We’ll check the size distribution and available dispersion guidance for your matrix.
Review inquiry for this referenceReference B · thickness / lateral size
BET surface area, Carbon content
What we’ll verify: We’ll check the purity definition, test method and reported impurities.
Review inquiry for this referenceReference C · thickness / lateral size
Purity
What we’ll verify: We’ll check the carbon test method and available oxygen and impurity data.
Review inquiry for this referenceReference D · thickness / lateral size
Purity
What we’ll verify: We’ll check how thickness and lateral size were measured and whether PSD includes agglomerates.
Review inquiry for this referenceA–D are selection references, not confirmed stock grades. A dash indicates an unspecified property. We’ll confirm the proposed grade, specifications, availability and documents with your quotation.
Carbon content and purity are different claims. Compare their definitions, analytical methods and impurity limits before treating two values as equivalent.
D has platelets 0.2–1 µm wide; A is approximately 5 µm wide. Start with this difference if width limits your process. Clumps can be larger than individual platelets, so check powder particle size separately before choosing a nozzle or filter.
Compare A, B and C with D’s approximately 20 nm thickness. Treat thickness as one selection factor. Layer count, ease of mixing and finished performance need their own evidence.
A lists a BET surface area of 90–130 m²/g; C lists 20–40 m²/g. BET measures the surface accessible to gas during testing. Compare the test conditions and try the powder in your mixture. For purity or carbon content, compare values measured on the same basis.
Use size and surface chemistry to narrow the options. Compare samples in the same recipe and process.
Ask about larger platelets, a specified layer count, surface-treated powder, a dispersion or a masterbatch. Functionalized GNP, graphene oxide and reduced graphene oxide are assessed as distinct materials.
Describe your requirementTell us what you are making and the result you need. We can start from your application if you have not chosen a grade.
The particles need to form a conductive network in your polymer or rubber. Compare several addition levels using the same mixing and resistivity test.
Heat can travel differently along a layer and through it. Tell us which direction matters, then test your finished mixture.
See whether the powder wets and mixes evenly in your coating. Test the cured coating at the thickness you plan to use.
Test samples in your electrode recipe. Purity limits and electrochemical performance need to be assessed for the selected grade.
Record the grade and batch, and use the same measurement method each time. This helps you compare results when the material or process changes.
Graphene nanoplatelets (GNPs) are thin, platelet-shaped carbon particles made of stacked graphene layers. The name covers many grades with different sizes and surface properties.
Graphite powder, graphene oxide (GO), reduced graphene oxide (rGO), dispersions and masterbatches are separate material requests.
Compare carbon & 2D materialsThickness is how thick a platelet is. Lateral size is its width across the face. Powder particle size can include clumps of platelets.
These numbers answer different questions. When comparing grades, ask how each was measured.
These materials behave differently in water, solvents and polymers. Start with the mixture you need to make.
Stacks of thin graphitic platelets.
GOGraphene oxideOxidized sheets with oxygen-containing groups.
rGOReduced graphene oxideReduced GO with residual oxygen and defects.
GraphiteGraphite powderGraphitic particles; thickness varies by grade.
| Material | What it is | Before you choose |
|---|---|---|
| Graphene nanoplatelets (GNP) | Small, flat carbon particles. Grades vary in width, thickness and surface treatment. | Size and how well it mixes with your liquid or polymer. For treated powder, check the treatment and composition. |
| Graphene oxide (GO) | Oxidized carbon sheets with oxygen-containing groups. Their behavior in water differs from unmodified GNP. | Oxygen content, surface chemistry and mixing conditions. Test conductivity for your intended use. |
| Reduced graphene oxide (rGO) | GO after reduction. The process affects the oxygen and defects left in the material. | How it was reduced, its composition and measured conductivity. Reduction also changes how it disperses. |
| Graphite powder | A graphitic carbon powder. The name alone does not tell you the thickness of its particles. | Particle shape and size. If replacing GNP, compare measured platelet thickness too. |
Mechanical exfoliation uses force to separate layers of graphite. Liquid-phase exfoliation does this in a liquid, often using shear mixing or ultrasound. The two descriptions can overlap. Washing, separation and drying also affect the final powder, including any solvent or dispersant left behind.
Reducing GO produces rGO, whose remaining oxygen and defects depend on the process. CVD commonly grows graphene films on a supporting surface. Compare a CVD film with other films and a GNP powder with other powders. Even at the same stated thickness, products can differ in width and surface chemistry.
The spacing between graphitic layers is approximately 0.335 nm. A measured flake thickness can also include effects from the supporting surface, attached molecules and instrument settings. Simply dividing that reading by 0.335 can give a misleading layer count.
For few-layer graphene powder, ask how many flakes were measured, the range of layer counts and the method used. A 1–5 nm thickness label alone does not mean fewer than five layers.
Start with a small batch using the liquid, resin or polymer you plan to use in production.
Raman D/G describes aspects of the carbon structure, including edges and defects. Use settling, clump size and mixing observations to assess dispersion stability.
One published study measured approximately 10² S/m (about 100 S/m) for graphene powder compressed at 5 MPa. This gives a sense of scale for that experiment. References A–D have not been verified against this result. Material, density and contact between particles affect the reading.
When comparing data, look at what was tested: loose powder, a pressed sample, a film or a composite. The report should state the method, test direction and density or pressing conditions. A pressed-powder result will not predict your resin’s resistivity. Agree on batch conductivity testing if you need it included in the CoA.
A single platelet, pressed powder, film and filled polymer can give different results. Compare the test method, density and temperature. Also check the direction of heat flow: along the layer (in-plane) or through it (through-plane). Platelet alignment and contact with the surrounding material affect the result.
Try several amounts in your mixture. State whether each amount is by weight (wt%) or volume (vol%), and record viscosity and processing conditions.
Keep the powder in a tightly closed, labelled container and control dust during weighing and transfer. Use suitable local extraction and the protective equipment specified in the applicable SDS. Store in a well-ventilated place away from incompatible materials.
Follow the selected grade’s storage and drying instructions. Ask for its shelf life or retest date and whether it needs an inert atmosphere. These requirements vary by grade.
Use this checklist when reviewing a proposed grade or replacing an existing product.
Agree the specifications and batch acceptance limits for the selected grade before ordering.
| Property | What to compare | Why it matters |
|---|---|---|
| Grade & supplier code | Reference grade, product code and document revision | Keeps every comparison tied to an identifiable material. |
| Layer thickness / count | Thickness in nm and/or number of layers, with the measurement basis | A thickness statement and a layer-count estimate need their own evidence. |
| Lateral platelet size | Single-platelet width or diameter, distribution and method | Describes the platelet across its surface. |
| Powder particle-size distribution | D10 / D50 / D90, test method and dry or wet dispersion conditions | May describe agglomerates rather than individual platelets. |
| Carbon content / purity | Target content, reporting basis and analytical method | A carbon-content value should be read alongside the impurity profile. |
| BET surface area | Target m²/g, method and pretreatment conditions | Compare results only when their measurement conditions are understood. |
| Impurities & moisture | Application-specific oxygen, ash, metals, water or residual limits | Focus the review on the limits that matter to your process. |
| Surface chemistry | Unmodified or functionalized form; treatment and relevant composition | Helps assess matrix compatibility and the proposed dispersion route. |
For electrical, thermal or mechanical results, include the sample form, formulation, loading, processing and test conditions. A performance value from one formulation does not establish the result in another.
GNP powder sourcing & supply
Nike is a materials sourcing and trading company. Send your specification and quantity. We’ll check suitable sources, available documents and delivery terms.
Discuss your GNP requirementWe’ll compare source grades with your required form, dimensions and composition, and clarify which limits your process needs.
We’ll request the available TDS, applicable SDS and batch CoA, and check their product codes, revisions and reported tests.
We’ll check pack sizes, supplier minimums, availability, lead time and sample arrangements for your destination.
A technical data sheet (TDS) describes the grade. A certificate of analysis (CoA) gives the reported batch test results. A safety data sheet (SDS) covers handling and safety. Let us know which documents you need.
Identity, measurements and sourcing questions.
Use the CAS number in the selected grade’s documents. GNP products can use different CAS assignments. Include the product code, composition and powder form when comparing products.
Price depends on the grade and quantity, as well as packaging, testing and delivery. Send your requirements and destination so we can quote on a clear basis.
Graphene powder is a broad product name. GNP usually means small, flat particles made of stacked graphene layers. When comparing products, look at platelet width, thickness and surface treatment as well as the name.
Choose around the liquid or polymer you use and the result you need. GO has oxygen-containing groups that can help with water-based processing. Reducing GO produces rGO and changes its conductivity and dispersibility. GNP may need a dispersant. Try the selected grade in your own mixture before switching materials.
No. The measured thickness depends on the test method and sample preparation. An AFM reading can include effects from the supporting surface or material attached to the flake. If you need few-layer graphene powder, ask for the measured layer distribution and how it was determined.
Look at width as well as thickness. A is 1–5 nm thick and about 5 µm wide. D is about 20 nm thick and 0.2–1 µm wide. Because both dimensions differ, compare samples using the same recipe and mixing process.
Raman D/G helps describe the carbon structure, including edges and defects. To assess dispersion, look for clumps, track how the mixture settles and see whether it mixes evenly again. Then test the property you need. TEM and AFM images show sampled flakes, so they should be used alongside checks of the whole mixture.
Use results measured on a similar material and in the same heat-flow direction. In a composite, the amount of GNP, its alignment and its contact with the surrounding material all affect heat transfer. Test the proposed grade in your own mixture.
Try several amounts in your own recipe. Record whether each percentage is by weight (wt%) or volume (vol%). Compare conductivity with viscosity, ease of processing and mechanical properties before choosing the amount.
Send a product code or target size, what you will use it for, the quantity and destination. Include any required test limits or documents. If you are buying graphene nanoplatelets for a new process, start with a sample evaluation.
Start with a product code, specification or intended use.
Add your requirements, then review and send your inquiry by email or WhatsApp.
Continue with the material name only