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922714

Sigma-Aldrich

Graphene nanoribbon

Synonym(s):

GNRs, Graphene nanoribbon made by reductive splitting of CNT, Graphene nanoribbons by reductive splitting of CNT, H terminated graphene nanoribbons

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About This Item

Linear Formula:
C
CAS Number:
1034343-98-0
UNSPSC Code:
12141908
NACRES:
NA.23

description

Made by reductive splitting of CNT, edge terminated with H.

Quality Level

100

Assay

≥90% carbon basis (EA)

W

0.25-0.35 μm ± 0.05-0.1 μm

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General description

Graphene nanoribbons (GNR) are narrow strips of graphene with abundant edges and high aspect ratio. The edge functionalization can alter the chemical properties of the GNR to afford them good dispersibility and strong interfacial interactions with various materials. Such properties have made GNR suitable for producing a variety of composites, particularly as conductive fillers that provide percolation at a comparatively small mass loading due to the high aspect ratio and high conductivity. GNR have been used in sensors, energyconversion/storage devices, and electrochemical, photochemical and thermoelectrical systems. They have also been intensively studied for biochemical and biological applications such as bioimaging, biosensing, DNA sequencing, and neurophysiological recovery.

Application

Graphene nanoribbons (GNR) made by reductive splitting of carbon nanotubes possess highly reactive edge carbon atoms. The carbanions have been passivated by methanol to yield this H-terminated graphene nanoribbons product. This reductively splitted graphene nanoribbons preserve high electrical conductivity, and enable them good candidates for electrodes in neurophysiological recording, conductive filler in batteries, and heater in de-icing devices.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319,H335

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Kyle A Ritter et al.
Nature materials, 8(3), 235-242 (2009-02-17)
Graphene shows promise as a future material for nanoelectronics owing to its compatibility with industry-standard lithographic processing, electron mobilities up to 150 times greater than Si and a thermal conductivity twice that of diamond. The electronic structure of graphene nanoribbons
Melinda Y Han et al.
Physical review letters, 98(20), 206805-206805 (2007-08-07)
We investigate electronic transport in lithographically patterned graphene ribbon structures where the lateral confinement of charge carriers creates an energy gap near the charge neutrality point. Individual graphene layers are contacted with metal electrodes and patterned into ribbons of varying
Mohammad A Rafiee et al.
ACS nano, 4(12), 7415-7420 (2010-11-18)
It is well established that pristine multiwalled carbon nanotubes offer poor structural reinforcement in epoxy-based composites. There are several reasons for this which include reduced interfacial contact area since the outermost nanotube shields the internal tubes from the matrix, poor

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