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Merck
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Documenti fondamentali

797766

Sigma-Aldrich

Graphene nanoribbons

greener alternative

alkyl functionalized

Sinonimo/i:

GNRs, nano-graphene ribbons

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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

≥85% carbon basis (TGA)

Stato

powder

Caratteristiche più verdi

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

Lungh. × largh.

2-15 μm × 40-250 nm

Area superficiale

38 m2/g

Densità

1.5763 g/mL (He gas method)

Densità bulk

0.0953 g/mL (Mercury Porosimetry)

Categoria alternativa più verde

Enabling,

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Descrizione generale

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with "Design for energy efficency". Click here for more information.

Applicazioni

  • Composites.
  • Conductive inks.
  • Electrodes for LiB.
  • Energy storage & harvesting applications.
  • Bio-medical applications.

Nota sulla preparazione

Preferred dispersing organic solvents: pyrrolidones and chlorinated solvents, also dispersible in acetone, ethyl acetate, dimethyl formamide, ethylene glycol, or 1,2-dimethoxyethane at concentration ≤0.1 mg/mL after bath sonication for 15 min with stability for a few hours.
  • Less preferred dispersing organic solvents: cyclohexanone and γ-butyrolactone.
  • Aqueous dispersions are possible at 0.1 mg/mL with triton-X-100, sodium cholate and deoxycholate and cellulose-based surfactants.

Risultati analitici

Raman Spectroscopic Data:
ID/IG = 1.84±0.25
I2D/IG = 2.12±0.32
2D FWHM = 41 cm-1

Note legali

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

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
MKBX2276V

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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
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
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
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
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