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806625

Sigma-Aldrich

Graphene nanoplatelets

powder, polycarboxylate functionalized, hydrophilic

Synonym(s):

GNPs, graphenit-HYDRO

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About This Item

Empirical Formula (Hill Notation):
C
Molecular Weight:
12.01
UNSPSC Code:
12352103
NACRES:
NA.23

description

Dispersibility: water (high stability in aqueous medium)

Quality Level

100

form

powder

composition

Carbon, >70 wt. %
Oxygen, >10 wt. %

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General description

Graphene nanoplatelets are “pure carbon” very lipophilic, with a high tendency to aggregate and poor interactions with the surrounding matrix, hence difficult to disperse in processes and supports such as epoxy resin, thermoplastics or solvents such as water. The chemical modification on the surface of graphite nanoplatelet open new properties allowing good interaction with the targeted matrix. Without these chemical modifications the dispersion step became a difficult task and quite often do not produce the expected benefits.

Application

  • Graphene (nano)composite materials
  • Conductive coatings
  • Conductive Inks
  • Energy Storage
  • Electrode materials

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319,H335

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCM2418
MKCK4652
MKCC2766
MKBW5736V

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Chang-Hsiao Chen et al.
Nanomedicine : nanotechnology, biology, and medicine, 9(5), 600-604 (2013-01-26)
A graphene-based flexible microprobe developed by microelectromechanical system technology shows high resolution for the detection of electrophysiological signals from various bio-objects. The hydrophilization post-treatment using steam plasma was performed on the graphene surface to decrease the interfacial impedance between graphene
Edge-carboxylated graphene nanoplatelets as oxygen-rich metal-free cathodes for organic dye-sensitized solar cells
Ju et al.
Energy & Environmental Science, 7(3), 1044-1052 (2014)
Solid-state functionalization of graphene with amino acids toward water-dispersity: implications on a composite with polyaniline and its characteristics as a supercapacitor electrode material
Erdenedelger et al.
Journal of Material Chemistry A, 2(31), 12526-12534 (2014)
Maria Suarez-Diez et al.
Scientific reports, 10(1), 3232-3232 (2020-02-26)
Graphene nanomaterials have attracted a great interest during the last years for different applications, but their possible impact on different biological systems remains unclear. Here, an assessment to understand the toxicity of commercial polycarboxylate functionalized graphene nanoplatelets (GN) on the

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