Nanoparticles as seen by a transmission electron microscopeZinc nanoparticles as seen by a transmission electron microscopeDouble-walled carbon nanotubes, or DWNT, under a transmission electron microscopeAligned carbon nanotube powder with 200 nanometer size referenceSingle-wall carbon nanotubes, or SWNT, under a transmission electron microscopeMulti-walled carbon nanotubes, MWNT, under a transmission electron microscopeSingle-walled carbon nanotubes, SWNT, under a transmission electron microscope
  DWNT Double-wall carbon nanotubes are a specific subset of MWNT, multi-wall carbon nanotubes. Some of their prospective applications include the following:
  • Paper batteries
  • Gas sensors
  • Dielectrics
  • Circuits
  • Drug delivery
  • Films
  • Polymers
  • Solar cells
  • Strengthening metal
  • Thermal management of circuits
  • Ultracapacitors
DESCRIPTION PURITY ID OD  LENGTH SPECIFIC SURFACE AREA CONDUCTIVITY BULK DENSITY TRUE DENSITY COLOR  OTHER ITEM # PRICE QUANTITY
DWNT Powder; < 3 nm OD 90% 1-2 nm < 3 nm < 20 μm >450 m2/g Thermal conductivity: ~ 4000W/m·k n/a ~2.1 g/cm3 Black DWNTs: > 60%, Amorphous carbon: < 5%, Ash (catalyst residue): < 3% SN2201 $310/gram  
To buy less than a gram or ml, please specify volume as a decimal, for example 0.25 for a quarter gram. All prices are ex-works Fremont CA USA in US$. Please note a $10.00 packaging and handling fee applies to all orders. All orders for powders must be a minimum of $75 without the shipping fee; all orders with colloids or dispersions must be a minimum of $150 per order. Customer must enter a minimum order of 2 grams or mls and above for the Item(s)/Product(s) with per unit price between $1 to $25. All orders are our bound by our terms and conditions. All orders with a hazardous classification will incur extra freight charges if the order amount is over 28 grams, which will be added after order submission. For domestic orders, the hazmat fee is $35 and the order must ship priority, while for international the hazmat+international freight fee is $190 for amounts up to about 2 lbs., or 56 grams. Orders for delivery within California will have 9.75% sales tax added.


 
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