Layers of Multi walled Carbon Nanotubes | MWNTs, MWCNTs, Short MWNTs, Short MWCNTs from US Research Nanomaterials, Inc

Multi-walled Carbon Nanotubes (MWNTs)

Multi-walled carbon nanotubes (MWNT) consist of multiple rolled layers (concentric tubes) of graphite.

How Many Layers of Multi-walled Carbon Nanotubes (MWNTs)

Here comes an example from our product of US4315:
Because the multi-walled carbon nanotube has the outer diameter of 50-80nm, inner diameter of 5-15nm, therefore the thickness of the wall is about 45-65nm. And because the distance between each wall is about 0.34nm, therefore the number of layers can be calculated between 45/0.34=132 to 65/0.34=191. That is, MWCT US4315 is about 132-191 layers.

Multi-walled Carbon Nanotubes Applications

Potential applications of carbon nanotubes are: (1) additives in polymers; (2) catalysts; (3) electron field emitters for cathode ray lighting elements; (4) flat panel display; (5) gas-discharge tubes in telecom networks; (6) electromagnetic-wave absorption and shielding; (7) energy conversion; (8) lithium-battery anodes; (9) hydrogen storage; (10) nanotube composites (by filling or coating); (11) nanoprobes for STM, AFM, and EFM tips; (12) nanolithography; (13) nanoelectrodes; (14) drug delivery; (15) sensors; (16) reinforcements in composites; (17) supercapacitor.

Multi-walled Carbon Nanotubes Products

Single-Walled Carbon Nanotubes (SWNTs) How to Disperse Carbon Nanotubes?
SWNTs, >95%	High Purified SWNTs, >98%	Large Surface SWNTs, >95%
High Purified SWNTs, >98%	High Purified SWNTs, >98%, -OH	High Purified SWNTs, >98%, -COOH
High Purified Short SWNTs, >98%	High Purified Short SWNTs, >98%, -OH	High Purified Short SWNTs, >98%, -COOH
SWNTs, >90% Dispersion Available	SWNTs, >90%, -OH	SWNTs, >90%, -COOH
Short SWNTs, >90% Dispersion Available	Short SWNTs, >90%, -OH	Short SWNTs, >90%, -COOH
SWNTs, >60%	SWNTs, >60%, -OH	SWNTs, >60%, -COOH
Short SWNTs, >60%	Short SWNTs, >60%, -OH	Short SWNTs, >60%, -COOH

Double-Walled Carbon Nanotubes (DWNTs) DWCNTs,DWCNT,DWNTs,DWNT,Double Wall Carbon Nanotubes,DWCNTs,DWCNT,DWNTs,DWNT,Double Wall Carbon Nanotubes
DWNTs, >60%	DWNTs, >60%, -OH	DWNTs, >60%, -COOH
Short DWNTs, >60%	Short DWNTs, >60%, -OH	Short DWNTs, >60%, -COOH

Multi-Walled Carbon Nanotubes (MWNTs) MWCNTs,MWCNT,MWNTs,MWNT,Multi Wall Carbon Nanotubes,MWCNTs,MWCNT,MWNTs,MWNT,Multi Wall Carbon Nanotubes
MWNTs, >95%, OD: <7nm	MWNTs, >95%, OD: <7nm, -OH	MWNTs, >95%, OD: <7nm, -COOH
MWNTs, >95%, OD: 5-15nm Dispersion Available	MWNTs, >95%, OD: 5-15nm, -OH	MWNTs, >95%, OD: 5-15nm, -COOH
MWNTs, >95%, OD: 10-20nm	MWNTs, >95%, OD: 10-20nm, -OH	MWNTs, >95%, OD: 10-20nm, -COOH
MWNTs, >95%, OD: 20-30nm Dispersion Available	MWNTs, >95%, OD: 20-30nm, -OH	MWNTs, >95%, OD: 20-30nm, -COOH
MWNTs, >95%, OD: 30-50nm	MWNTs, >95%, OD: 30-50nm, -OH	MWNTs, >95%, OD: 30-50nm, -COOH
MWNTs, >95%, OD: 50-80nm Dispersion Available	MWNTs, >95%, OD: 50-80nm, -OH	MWNTs, >95%, OD: 50-80nm, -COOH

Short Length Multi-Walled Carbon Nanotubes (MWNTs) Short MWCNTs,Short MWCNT,Short Multi Wall Carbon Nanotubes,Short MWCNTs,Short MWCNT,Multi Wall Nanotube
Short MWNTs, >95%, OD: <7nm	Short MWNTs, >95%, OD: <7nm, -OH	Short MWNTs, >95%, OD: <7nm, -COOH
Short MWNTs, >95%, OD: 5-15nm	Short MWNTs, >95%, OD: 5-15nm, -OH	Short MWNTs, >95%, OD: 5-15nm, -COOH
Short MWNTs, >95%, OD: 10-20nm	Short MWNTs, >95%, OD: 10-20nm, -OH	Short MWNTs, >95%, OD: 10-20nm, -COOH
Short MWNTs, >95%, OD: 20-30nm	Short MWNTs, >95%, OD: 20-30nm, -OH	Short MWNTs, >95%, OD: 20-30nm, -COOH
Short MWNTs, >95%, OD: 30-50nm	Short MWNTs, >95%, OD: 30-50nm, -OH	Short MWNTs, >95%, OD: 30-50nm, -COOH
Short MWNTs, >95%, OD: 50-80nm	Short MWNTs, >95%, OD: 50-80nm, -OH	Short MWNTs, >95%, OD: 50-80nm, -COOH

Graphitized Multi-Walled Carbon Nanotubes (MWNTs) Graphitized MWCNTs,Graphitized MWCNT,Graphitized MWCNTs,MWCNTs,MWCNT,MWCNT,CNTs,CNT,CNTs,CNT,CNTS,CNT
Graphitized MWNTs, >99.9%, OD:5 -15nm	Graphitized MWNTs, >99.9%, OD: 5-15nm, -OH	Graphitized MWNTs, >99.9%,OD: 5-15nm, -COOH
Graphitized MWNTs, >99.9%, OD:10-20nm	Graphitized MWNTs, >99.9%, OD: 10-20nm,-OH	Graphitized MWNTs,>99.9%, OD: 10-20nm,-COOH
Graphitized MWNTs, >99.9%, OD:20-30nm	Graphitized MWNTs, >99.9%, OD: 20-30nm,-OH	Graphitized MWNTs,>99.9%, OD: 20-30nm,-COOH
Graphitized MWNTs, >99.9%, OD:30-50nm	Graphitized MWNTs, >99.9%, OD: 30-50nm,-OH	Graphitized MWNTs,>99.9%, OD: 30-50nm,-COOH
Graphitized MWNTs, >99.9%, OD:50-80nm	Graphitized MWNTs, >99.9%, OD: 50-80nm,-OH	Graphitized MWNTs,>99.9%, OD: 50-80nm,-COOH

Industrial Multi-Walled Carbon Nanotubes (MWNTs) MWCNTs,MWCNT,MWNTs,MWNT,CNTs,CNT,Carbon Nanotubes,Carbon Nanotube,MWCNTs,MWCNT,MWNTs,MWNT,CNTs,CNT
Industrial MWNTs, >90%, OD: 8-15nm	Industrial MWNTs, >90%, OD: 8-15nm, -OH	Industrial MWNTs, >90%, OD: 8-15nm, -COOH
Industrial MWNTs, >90%, OD: 10-30nm	Industrial MWNTs, >90%, OD: 10-30nm, -OH	Industrial MWNTs, >90%, OD: 10-30nm, -COOH
Industrial MWNTs, >90%, OD: 20-40nm	Industrial MWNTs, >90%, OD: 20-40nm, -OH	Industrial MWNTs, >90%, OD: 20-40nm, -COOH
Industrial MWNTs, >90%, OD: 50-80nm	Industrial MWNTs, >90%, OD: 50-80nm, -OH	Industrial MWNTs, >90%, OD: 50-80nm, -COOH
Short MWNTs, >90%, OD: 30-50nm	Short MWNTs, >90%, OD: 30-50nm, -OH	Short MWNTs, >90%, OD: 30-50nm, -COOH

Research Grade Single-Walled Carbon Nanotube Arrays
SWCNTs Array on Monocrystal Silicon, H: 100um	SWCNTs Array on Monocrystal Silicon, H: 200um	SWCNTs Array on Monocrystal Silicon, H: 300um
SWCNTs Array on Polycrystal Silicon, H: 100um	SWCNTs Array on Polycrystal Silicon, H: 200um	SWCNTs Array on Polycrystal Silicon, H: 300um
SWCNTs Array on Quartz, H: 100um	SWCNTs Array on Quartz, H: 200um	SWCNTs Array on Quartz, H: 300um
SWCNTs Array on Copper, H: 100um	SWCNTs Array on Copper, H: 200um	SWCNTs Array on Copper, H: 300um
SWCNTs Array on Stainless Steel, H: 100um	SWCNTs Array on Stainless Steel, H: 200um	SWCNTs Array on Stainless Steel, H: 300um

Research Grade Multi-Walled Carbon Nanotube Arrays
MWCNTs Array on Monocrystal Silicon, H: 100um	MWCNTs Array on Monocrystal Silicon, H: 500um	MWCNTs Array on Monocrystal Silicon, H: 1000um
MWCNTs Array on Polycrystal Silicon, H: 100um	MWCNTs Array on Polycrystal Silicon, H: 500um	MWCNTs Array on Polycrystal Silicon, H: 1000um
MWCNTs Array on Quartz, H: 100um	MWCNTs Array on Quartz, H: 500um	MWCNTs Array on Quartz, H: 1000um
MWCNTs Array on Copper, H: 100um	MWCNTs Array on Copper, H: 500um	MWCNTs Array on Copper, H: 1000um
MWCNTs Array on Stainless Steel, H: 100um	MWCNTs Array on Stainless Steel, H: 500um	MWCNTs Array on Stainless Steel, H: 1000um

Research Grade Carbon Nanotube Films and Papers and Tapes
Carbon Nanotube Bucky Papers, Thickness 30um	CNTs Highly Conductive Films, Thickness 18um	CNTs Highly Conductive Tapes, Thickness 18um
CNTs Metal Films with Cu, Thickness 20um	CNTs Metal Films with Fe, Thickness 20um	CNTs Metal Films with Ni, Thickness 20um
CNTs Metal Tapes with Cu, Thickness 20um	CNTs Metal Tapes with Fe, Thickness 20um	CNTs Metal Tapes with Ni, Thickness 20um

Enhanced Properties of Carbon Nanotubes for Research
CNTs Doped with 10wt% Ag Nanopowder	CNTs Doped with 30wt% Ag Nanopowder	CNTs Doped with 50wt% Ag Nanopowder
CNTs Doped with 10wt% Al Nanopowder	CNTs Doped with 30wt% Al Nanopowder	CNTs Doped with 50wt% Al Nanopowder
CNTs Doped with 10wt% Fe Nanopowder	CNTs Doped with 30wt% Fe Nanopowder	CNTs Doped with 50wt% Fe Nanopowder
CNTs Doped with 10wt% Cu Nanopowder	CNTs Doped with 30wt% Cu Nanopowder	CNTs Doped with 50wt% Cu Nanopowder
CNTs Doped with 10wt% Si Nanopowder	CNTs Doped with 30wt% Si Nanopowder	CNTs Doped with 50wt% Si Nanopowder
CNTs Doped with 10wt% Graphene Nanopowder	CNTs Doped with 30wt% Graphene Nanopowder	CNTs Doped with 50wt% Graphene Nanopowder
CNTs Doped with 50wt% Co Nanopowder	CNTs Doped with 50wt% Ti Nanopowder	CNTs Doped with 50wt% Zn Nanopowder
CNTs Doped with 50wt% Sn Nanopowder	CNTs Doped with 50wt% Al2O3 Nanopowder	CNTs Doped with 50wt% SiO2 Nanopowder
CNTs Doped with 50wt% Fe3O4 Nanopowder	CNTs Doped with 50wt% BN Nanopowder	CNTs Doped with 30wt% Si and 30wt% Graphene

Graphene & Graphene Oxide & Enhanced Properties of Graphene Metal Products for Research
Graphene Research Grade Water Dispersion	Graphene Research Grade Dry Powder	Graphene Nickel Nanoparticles Dry Powder
Graphene Oxide Single Layer Water Dispersion	Graphene Oxide Single Layer Dry Powder	Graphene Silicon Nanoparticles Dry Powder
Graphene Nanoplatelets 99.5% Water Dispersion	Graphene Nanoplatelets 99.5% Dry Powder	Graphene Silver Nanoparticles Dry Powder
Graphene Nanoplatelets 95% Water Dispersion	Graphene Nanoplatelets 95% Dry Powder	Graphene Iron Nanoparticles Dry Powder
Graphene Carbon Nanotubes Mixed Water Dispersion	Graphene Carbon Nanotubes Mixed Dry Powder	Graphene Aluminum Nanoparticles Dry Powder
Graphene CNTs Carbon Black Mixed Water Dispersion	Graphene CNTs Carbon Black Mixed Dry Powder	Graphene Boron Nanoparticles Dry Powder
Graphene Carbon Black Mixed Water Dispersion	Graphene Carbon Black Mixed Dry Powder	Graphene Copper Nanoparticles Dry Powder
Graphene CNTs Silicon Mixed Water Dispersion	Graphene CNTs Silicon Mixed Dry Powder	Graphene Tungsten Nanoparticles Dry Powder
Graphene CNTs Silver Mixed Water Dispersion	Graphene Single Layer with N Doped Dry Powder	Graphene Zinc Nanoparticles Dry Powder

Research Grade Graphene Films
Graphene Film on Monocrystal Silicon Substrate	Graphene Film on Polycrystal Silicon Substrate	Graphene Film on Quartz Substrate
Graphene Film on Silicon Oxide Substrate	Graphene Film on Copper Oxide Substrate	Graphene Film on Copper Substrate
Graphene Film on Removable Copper Substrate	Graphene Film on PET Substrate	Graphene Film Suspended Self-transferred

Aligned Carbon Nanotubes & Carbon Nanofibers & Nickel-Coated MWCNTs
Nickel-Coated MWNTs, >98%, OD: 5-15nm	Nickel-Coated MWNTs, >98%, OD: 30-50nm	Graphitized Carbon NanoFibers, Purity: >99.9%
Nickel-Coated MWNTs, >98%, OD: 10-20nm	Nickel-Coated MWNTs, >98%, OD: 50-80nm	Aligned MWNTs, >95%, Length: 30-100um
Nickel-Coated MWNTs, >98%, OD: 20-30nm	Carbon NanoFibers, Purity: >95%	Aligned MWNTs, >95%, Length: 5-15um

Special Carbon Nanotubes (New Research Grade CNT Products)
Highly Conductive Carbon Black & Nanotube Mixed	Nitrogen-doped Carbon Nanotubes	CNTs-Polystyrene Microspheres by Elec-Absorption
Super Activated Carbon & Nanotube Mixed	CNTs Conductive Additives for Lithium Ion Battery	CNTs-Polypropylene Resin Matrix
Large Inner Diameter Thin Walled CNTs	CNTs-Mica Prepared by Electrostatic Adsorption	CNTS-High Density Polyethylene Resin Matrix
Flash-Ignited Multi-Walled Carbon Nanotubes	CNTs-TiO2 Prepared by Electrostatic Adsorption	CNTs-LLD Polyethylene Resin Matrix
Helical Multi-Walled Carbon Nanotubes	CNTs-TiO2 Prepared by Electrostatic Adsorption	CNTs-High Impact Polystyrene Resin Matrix
MWCNTs-NH2 Modified by Amino	CNTs-Black Carbon by Electrostatic Adsorption	CNTs Doped with 30wt% Si and 30wt% Graphene

Fullerene C60, Fullerene C70, Fullerene C60, OH Functionalized (Polyhydroxylated Fullerene - Fullerenols)
Fullerene C60, 98%	Fullerene C60, 99%	Fullerene C60, 99.9%
Fullerene C70, 98%	Fullerene C70, 99%	Fullerene C70, 99.9%
Fullerene C60, OH Functionalized / Fullerenols	Fullerene Fullerenols 100ppm Dispersion	Fullerene Fullerenols 1000ppm Dispersion

Carbon Nanotube Dispersion Products for Research & Carbon Nanotube Dispersant Products
SWCNTs PVP Coated	CNTs NMP Dispersion, OD: 5-15nm	CNTs Thermal Radiation Coating Dispersion
Short SWCNTs PVP Coated	CNTs Water Dispersion, OD: 20-30nm	CNTs Transparent Static Conductive Dispersion
MWCNTs PVP Coated, OD: <7nm	CNTs Ethanol Dispersion, OD: 20-30nm	CNTs Graphene Mixed Water Dispersion
MWCNTs PVP Coated, OD: 20-30nm	CNTs Isopropanol Dispersion, OD: 20-30nm	CNTs Graphene Carbon Black Mixed Water Dispersion
MWCNTs PVP Coated, OD: 50-80nm	CNTs N-butanol Dispersion, OD: 20-30nm	CNTs Graphene, Silicon Mixed Water Dispersion
Graphitized MWCNTs PVP Coated, OD: 10-20nm	CNTs NMP Dispersion, OD: 20-30nm	CNTs Graphene, Silver Mixed Water Dispersion
SWCNTs Water/Ethanol/Xylene Dispersion	CNTs Water Dispersion, OD: 50-80nm	SWCNTs Doped with Ag Water Dispersion
Short SWCNTs Water/Ethanol/Xylene Dispersion	CNTs Ethanol Dispersion, OD: 50-80nm	Short SWCNTs Doped with Ag Water Dispersion
CNTs Water Dispersion, OD: 5-15nm	CNTs Isopropanol Dispersion, OD: 50-80nm	MWCNTs doped with Ag Water Dispersion
CNTs Ethanol Dispersion, OD: 5-15nm	CNTs N-butanol Dispersion, OD: 50-80nm	CNTs Alcohol Dispersant
CNTs Isopropanol Dispersion, OD: 5-15nm	CNTs NMP Dispersion, OD: 50-80nm	CNTs Ester Dispersant
CNTs N-Butanol Dispersion, OD: 5-15nm	CNTs Super Concentration with 15wt% Dispersion	CNTs Water Dispersant

Carbon Nanotube Dispersant and CNTs Dispersant

How to Disperse CNTs:
Order CNTs Alcohol Dispersant -- US4496
Order CNTs Ester Dispersant -- US4497
Order CNTs Water Dispersant -- US4498

Example - Using US4498 dispersant to disperse CNTs:
1) Single-walled: US4498 should be 3 to 4 times of carbon tubes;
2) Multi-walled: US4498 should be 0.1 to 4 times of carbon tube (corresponding diameter descending)
3) Step 1, add US4498 into water first. Step 2, when US4498 fully dissolved into water, then add CNTs. Step 3, finally subjected to ultrasonic (this requires the customer's own experience). Order CNTs Dispersion Products

US Research Nanomaterials, Inc. supplies versatile carbon nanotubes: Single-walled nanotubes, Short Length Single-walled nanotubes, Double-walled carbon nanotubes, Short length double-walled carbon nanotubes, Multi-walled carbon nanotubes, Short length multi-walled carbon nanotubes, Graphitized Multi-Walled Carbon Nanotubes, Industrial Grade Multi-Walled Carbon Nanotubes, Nickel-Coated Multi-Walled Carbon Nanotubes, Aligned Multi-Walled Carbon Nanotubes and some Special Carbon Nanotubes. Our CNTs are produced by one of our well-known State Key Laboratories. Assurance of quality and process control is guaranteed through the strict monitoring of raw materials, manufacturing, measuring and final packaging. We can ensure to our customers: We produce the highest quality products with the most reasonable prices!

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