Carbon-Coated Copper Nanoparticles (C@Cu)
C@Cu nanoparticles wrap copper cores in a thin carbon shell to prevent the oxide formation that otherwise degrades bare copper nanopowder's conductivity, while retaining copper's electrical and thermal performance.
Thin C shellCoating Content
~22 nmParticle Size Range
Custom Made-to-OrderGrade, Size & Quantity
WorldwideExport Shipping
Carbon-Coated Copper Nanoparticles — Grades & Specifications
Carbon-Coated Copper Nanoparticles (C@Cu) powder is supplied across a range of grades, particle sizes and coating ratios. The options below are typical; specify your target values in the request form and we will confirm availability, lead time and pricing.
| Material | Carbon-Coated Copper Nanoparticles (C@Cu) |
|---|---|
| Category | Carbon-Coated Powder |
| Core material | Copper (CAS 7440-50-8) |
| Coating / shell material | Graphitic/amorphous carbon |
| Coating content | Commercial grades advertise a carbon-coated shell without publishing an exact weight fraction; the coating is engineered as a thin, continuous barrier layer |
| Particle size | Approximately 22 nm on a representative commercial grade, 99.85% purity |
| Morphology | Spherical copper nanoparticle core with a thin, continuous graphitic carbon shell |
| Appearance | Dark/black powder or dispersed fluid form, depending on grade |
| Oxidation Resistance | The carbon shell is engineered primarily to protect the oxidation-prone copper core from forming insulating oxide layers, preserving conductivity and thermal stability versus bare copper nanopowder |
| Typical applications | Conductive Inks & Printed Electronics, EMI Shielding Composites, Lubricant & Anti-Wear Additives, Powder-Metallurgy Sintering Pastes |
Applications by Industry
Conductive Inks & Printed ElectronicsLower-cost, oxidation-resistant alternative to silver in conductive and RFID printing inks.
EMI Shielding CompositesConductive filler in polymer composites for electromagnetic interference shielding.
Lubricant & Anti-Wear AdditivesAdded to lubricating oils to reduce friction and wear in mechanical systems.
Powder-Metallurgy Sintering PastesUsed in low-temperature sintering die-attach and interconnect pastes requiring oxidation-free copper surfaces.
Thermal Interface MaterialsServes as conductive filler in thermally conductive pastes and composites for electronics cooling.
Catalysis & Catalyst SupportsCarbon shell stabilizes the metal core against agglomeration and oxidation during catalytic reactions.
Particle Size & Mesh Conversion
Reference for converting between US mesh and microns/millimetres. Figures are nominal sieve openings and may vary slightly by standard.
| Mesh (US) | Micron (µm) | mm | Inch | Remarks |
|---|---|---|---|---|
| 3 | 6730 | 6.730 | 0.2650 | |
| 4 | 4760 | 4.760 | 0.1870 | |
| 5 | 4000 | 4.000 | 0.1570 | |
| 6 | 3360 | 3.360 | 0.1320 | |
| 7 | 2830 | 2.830 | 0.1110 | |
| 8 | 2380 | 2.380 | 0.0937 | |
| 10 | 2000 | 2.000 | 0.0787 | |
| 12 | 1680 | 1.680 | 0.0661 | |
| 14 | 1410 | 1.410 | 0.0555 | |
| 16 | 1190 | 1.190 | 0.0469 | |
| 18 | 1000 | 1.000 | 0.0394 | |
| 20 | 841 | 0.841 | 0.0331 | |
| 25 | 707 | 0.707 | 0.0278 | |
| 30 | 595 | 0.595 | 0.0234 | |
| 35 | 500 | 0.500 | 0.0197 | |
| 40 | 420 | 0.420 | 0.0165 | |
| 45 | 354 | 0.354 | 0.0138 | |
| 50 | 297 | 0.297 | 0.0117 | |
| 60 | 250 | 0.250 | 0.0098 | |
| 70 | 210 | 0.210 | 0.0083 | |
| 80 | 177 | 0.177 | 0.0070 | |
| 100 | 149 | 0.149 | 0.0059 | |
| 120 | 125 | 0.125 | 0.0049 | |
| 140 | 105 | 0.105 | 0.0041 | |
| — | 100 | 0.100 | 0.0039 | Sand |
| 170 | 88 | 0.088 | 0.0035 | |
| 200 | 74 | 0.074 | 0.0029 | |
| — | 70 | 0.070 | 0.0027 | |
| 230 | 63 | 0.063 | 0.0024 | Human hair |
| — | 55 | 0.055 | 0.00217 | |
| 270 | 53 | 0.053 | 0.0021 | |
| — | 50 | 0.050 | 0.00197 | |
| 325 | 44 | 0.044 | 0.0017 | |
| — | 40 | 0.040 | 0.00157 | |
| 400 | 37 | 0.037 | 0.0015 | |
| 550 | 25 | 0.025 | 0.00099 | |
| 625 | 20 | 0.020 | 0.00079 | |
| 1200 | 12 | 0.012 | 0.0005 | |
| 1250 | 10 | 0.010 | 0.000394 | |
| — | 7 | 0.007 | 0.000276 | |
| 2500 | 5 | 0.005 | 0.000197 | |
| 4800 | 3 | 0.003 | 0.000118 | |
| 5000 | 2.5 | 0.0025 | 0.000099 | Bacteria (approx.) |
| 12000 | 1 | 0.001 | 0.0000394 |
Information Required for Quotation
- Grade or type
- Particle size (micron or mesh)
- Coating content / core-shell ratio
- Quantity
- Application environment
- Required delivery country
Lead time depends on grade, particle size, quantity and processing requirements. Export availability can be reviewed based on destination country and material type. A Certificate of Analysis can be provided on request.
Request a Quote or Custom Order
Tell us your grade, particle size and quantity. We typically reply within one business day.
Frequently Asked Questions
What is the coating content of Carbon-Coated Copper Nanoparticles?
Commercial grades advertise a carbon-coated shell without publishing an exact weight fraction; the coating is engineered as a thin, continuous barrier layer Other coating ratios can be reviewed on request depending on your application and quantity.
What particle sizes can you supply?
Approximately 22 nm on a representative commercial grade, 99.85% purity Mesh-based requirements are also accepted; a mesh-to-micron conversion reference is provided on the page.
Can Carbon-Coated Copper Nanoparticles be made to custom specifications?
Yes. Carbon-Coated Copper Nanoparticles is produced to order — core/shell ratio, particle size, morphology and packaging can be customized to your specification. Select “Custom Order” in the request form and provide your target values.
What is the minimum order quantity (MOQ)?
Order quantity is flexible and small quantities and prototype requests are welcome. Please state your required quantity in the form for an accurate quotation.
Can you export and ship Carbon-Coated Copper Nanoparticles internationally?
Yes, export inquiries are welcome. Availability and shipping are reviewed based on destination country, grade and quantity.
Do you provide a Certificate of Analysis (COA) or technical data?
A Certificate of Analysis and technical data can be provided on request for supplied lots.
Related Products
Request a Quote for Carbon-Coated Copper Nanoparticles
Send us your grade, particle size, quantity and application. We will review availability, quotation and lead time. Small quantities, prototypes and custom made-to-order specifications are welcome.