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Sigma-Aldrich

Graphene nanoribbons

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About This Item

Formule linéaire :
C
Poids moléculaire :
12.01
Numéro CE :
Code UNSPSC :
12352103
Nomenclature NACRES :
NA.23

Pureté

≥90.0% carbon basis (TGA)

Forme

powder

L × l

2-15 μm × 40-250 nm

Densité

2.2745 g/mL (He gas method)

Masse volumique apparente

0.0970 g/mL (Mercury Porosimetry)

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Description générale

Produced by unzipping multi-walled carbon nanotubes by potassium intercalation.

Application

  • Composites.
  • Conductive inks.
  • Electrodes for LiB.
  • Energy storage & harvesting applications.
  • Bio-medical applications.
  • Preferred dispersing organic solvents: pyrrolidones and chlorinated solvents.
  • Less preferred dispersing organic solvents: cyclohexanone and γ-butyrolactone.
  • Aqueous dispersions are possible at 0.1mg/mL with triton-X-100, sodium cholate and deoxycholate and cellulose-based surfactants.

Remarque sur l'analyse

Raman Spectroscopic Data:
ID/IG = 0.65±0.07
I2D/IG = 0.74±0.03
2D FWHM = 63 cm-1

Informations légales

Graphene Nanoribbon Composites and Methods of Making the Same, WO/2012/112435 A1.

Pictogrammes

Health hazard

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Carc. 2 - Repr. 2 - STOT RE 1 Inhalation

Organes cibles

Lungs

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

nwg


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Lei Li et al.
Advanced materials (Deerfield Beach, Fla.), 25(43), 6298-6302 (2013-09-03)
A facile and cost-effective approach for the fabrication of a hierarchical nanocomposite material of graphene-wrapped MnO2 -graphene nanoribbons (GMG) is developed. The resulting composite has a high specific capacity and an excellent cycling stability owing to the synergistic combination of
Changsheng Xiang et al.
ACS nano, 7(11), 10380-10386 (2013-10-10)
A thermoplastic polyurethane (TPU) composite film containing hexadecyl-functionalized low-defect graphene nanoribbons (HD-GNRs) was produced by solution casting. The HD-GNRs were well distributed within the polyurethane matrix, leading to phase separation of the TPU. Nitrogen gas effective diffusivity of TPU was
Bostjan Genorio et al.
ACS nano, 6(5), 4231-4240 (2012-04-04)
A cost-effective and potentially industrially scalable, in situ functionalization procedure for preparation of soluble graphene nanoribbon (GNRs) from commercially available carbon nanotubes is presented. The physical characteristics of the functionalized product were determined using SEM, evolved gas analysis, X-ray diffraction
High Throughput Preparation of Large Area Transparent Electrodes Using Non-Functionalized Graphene Naroribbons.
Zhu Y, et al.
Chemistry of Materials, 23, 935-939 (2011)
Dmitry V Kosynkin et al.
ACS nano, 5(2), 968-974 (2011-01-06)
Here we demonstrate that graphene nanoribbons (GNRs) free of oxidized surfaces can be prepared in large batches and 100% yield by splitting multiwalled carbon nanotubes (MWCNTs) with potassium vapor. If desired, exfoliation is attainable in a subsequent step using chlorosulfonic

Articles

Graphene is a unique two-dimensional (2D) structure of monolayer carbon atoms packed into a dense honeycomb crystal that has attracted great interest due to its diverse and fascinating properties.

Since its discovery little more than a decade ago,1 the two-dimensional (2D) allotrope of carbon—graphene—has been the subject of intense multidisciplinary research efforts.

Graphene's unique properties spark interdisciplinary interest; its honeycomb structure offers electrical, optical, and mechanical marvels.

Graphene nanoribbons (GNRs) are quasi-one-dimensional narrow strips of graphene comprised of sp2-hybridized carbon atoms arranged into hexagonal honeycomb lattice configurations.

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