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Merck
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797774

Sigma-Aldrich

Graphene nanoribbons

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About This Item

Formula condensata:
C
Peso molecolare:
12.01
Numero CE:
231-153-3
Codice UNSPSC:
12352103
NACRES:
NA.23

Saggio

≥90.0% carbon basis (TGA)

Stato

powder

Lungh. × largh.

2-15 μm × 40-250 nm

Densità

2.2745 g/mL (He gas method)

Densità bulk

0.0970 g/mL (Mercury Porosimetry)

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Descrizione generale

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

Applicazioni

  • 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.

Risultati analitici

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

Note legali

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

Pittogrammi

Health hazard
GHS08

Avvertenze

Danger

Indicazioni di pericolo

H351,H361fd,H372

Classi di pericolo

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

Organi bersaglio

Lungs

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

nwg

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Certificati d'analisi (COA)

Lot/Batch Number
MKCD0980
MKBX2277V

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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
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
High Throughput Preparation of Large Area Transparent Electrodes Using Non-Functionalized Graphene Naroribbons.
Zhu Y, et al.
Chemistry of Materials, 23, 935-939 (2011)
Lei Li et al.
ACS applied materials & interfaces, 5(14), 6622-6627 (2013-06-25)
A facile and cost-effective approach to the fabrication of a nanocomposite material of polyaniline (PANI) and graphene nanoribbons (GNRs) has been developed. The morphology of the composite was characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron microscopy, and
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
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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 Nanoribbons: Production & Applications

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