Short-Carboxylic Double walledcarbon nanotubes, OD 2-4 nm,, length 0.5-2um, purity >60%Product Type: Double-walled carbon nanotube material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, material specification matching, application fit or quotation confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Supplier: Atomfair
Brand: ATOMFAIR®
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
Short-Carboxylic double-walled carbon nanotubes are supplied as a dry powder with outer diameter 2–4 nm, length 0.5–2 μm, and purity >60%. The material must be handled in a controlled environment to avoid inhalation and electrostatic dispersion due to its high aspect ratio and fine particulate nature.
- Environmental Sensitivity: Storage in a sealed container under inert gas is recommended to prevent moisture adsorption and oxidative degradation of the carboxylic functional groups.
- Dispersion Requirement: The short-carboxylated grade requires polar solvents or surfactant-assisted dispersion protocols to achieve homogeneous suspensions for composite or thin-film applications.
- Toxicity Precaution: Nanotube particles may cause respiratory irritation if aerosolized; use in a fume hood or glovebox with appropriate HEPA filtration.
This procedure describes the standard protocol for dispersing short-carboxylic double-walled carbon nanotubes in a polar solvent or aqueous medium. Proper dispersion is critical for achieving uniform distribution in composite, electrode, or film formulations.
Required Equipment: Ultrasonic probe or bath sonicator, Analytical balance, Sealable glass vial or centrifuge tube, Fume hood or glovebox
- Weigh the powder
Weigh the desired amount of short-carboxylic double-walled carbon nanotube powder inside a glovebox or fume hood to prevent inhalation. - Transfer to container
Transfer the powder into a clean, sealable glass vial or centrifuge tube. - Add solvent
Add the appropriate polar solvent (e.g., deionized water, ethanol, or NMP) to achieve the target concentration, typically 0.1–1 mg/mL. - Seal the container
Seal the container tightly to prevent solvent evaporation and contamination. - Sonicate the mixture
Place the sealed container in an ultrasonic bath or under a probe sonicator and sonicate for 30–60 minutes until a visually homogeneous suspension is obtained. - Centrifuge if needed
Centrifuge the suspension at 3000–5000 rpm for 10 minutes to sediment any large aggregates. - Collect the supernatant
Carefully collect the supernatant for immediate use in composite, electrode, or film fabrication.
What is the trade-off between the purity specification of >60% and the cost or availability of these short carboxylic double-walled carbon nanotubes?
The purity of >60% indicates a lower-cost grade compared to higher purity alternatives, as up to 40% may consist of amorphous carbon or catalyst residues. This trade-off may be acceptable for applications where purity does not critically affect performance, such as certain composite fillers. The product is intended for procurement comparison, and bulk quantity requirements should be confirmed when requesting quotation support.
How do the outer diameter (2-4 nm) and length (0.5-2 µm) of these short carboxylic DWCNTs affect their compatibility with common dispersion media or polymer matrices?
The outer diameter of 2-4 nm and length of 0.5-2 µm are typical for double-walled carbon nanotubes used in nanocomposites. The short length and carboxylic functionalization enhance dispersibility in polar solvents and aqueous systems, making them compatible with dispersion, composite, film, and electrode workflows. Users should match the dimensional specification to their intended solvent or polymer matrix.
What critical parameters must be verified before handling these short carboxylic double-walled carbon nanotubes in a laboratory setting?
Before handling, researchers should verify the nanotube wall type (double-walled), outer diameter, length, purity, and functional group (carboxylic) as specified in the product description. The manufacturer recommends confirming these specifications, along with package size and quantity, before use. For bulk quantities, additional procurement support is available by contacting technical sales.
This short carboxylic-functionalized double-walled carbon nanotube material (OD 2-4 nm, length 0.5-2 µm, purity >60%) is evaluated for research applications requiring moderate-purity DWCNTs with carboxyl surface groups for dispersion or composite integration, noting the trade-off between functionalization utility and reduced purity relative to higher-grade alternatives.
Positive
- Carboxylic functionalization for dispersion compatibility: The short carboxylic surface groups enhance dispersibility in polar solvents and polymer matrices, facilitating integration into composite, electrode, or film workflows without additional functionalization steps.
- Small outer diameter and short length: The 2-4 nm outer diameter and 0.5-2 µm length provide a high aspect ratio suitable for percolation networks in conductive films or electrode formulations, while the short length aids uniform dispersion in viscous media.
Trade-offs
- Moderate purity limits application scope: At >60% purity, residual amorphous carbon and catalyst metal content may interfere with high-sensitivity electronic or electrochemical measurements, requiring post-purification or careful baseline correction for quantitative studies.
- Bulk quantity confirmation required: Procurement of larger volumes necessitates quotation confirmation, indicating potential supply chain variability or batch-to-batch consistency checks that must be factored into experimental planning.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
