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Key Documents

900413

Sigma-Aldrich

Graphene nanoplatelets

25 μm particle size

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About This Item

Empirical Formula (Hill Notation):
C
CAS Number:
Molecular Weight:
12.01
EC Number:
MDL number:
UNSPSC Code:
12141908
NACRES:
NA.23

description

residual acid content: < 0.5 wt%

Quality Level

form

powder

composition

oxygen content, <1%

surface area

120-150 m2/g

thickness

6-8 nm , average

particle size

25 μm

bulk density

0.03‑0.1 g/cm3

SMILES string

[C]

InChI

1S/C

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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General description

These graphene nanoplatelets can enhance mechanical properties such as stiffness, strength, and surface hardness of the matrix material. They are compatible with nearly all polymers and can serve as an active ingredient in inks or coatings, as well as an excellent additive for various types of plastics. The manufacturing processes used are non-oxidizing, resulting in a pristine graphitic surface composed of sp² carbon molecules, making them particularly suitable for applications that require high electrical or thermal conductivity. The particles have an average thickness of approximately 6-8 nanometers and a typical surface area of 120 to 150 m²/g.

Application

  • Ultracapacitor electrodes.
  • Anode materials for lithium-ion batteries.
  • Conductive additive for battery electrodes.
  • Electrically conductive inks.
  • Thermally conductive films and coatings.
  • Additive for lightweight composites.
  • Films or coatings for EMI shielding.
  • Substrate for chemical and biochemical sensors.
  • Barrier material for packaging.
  • Additive for super-strong concrete.
  • Additive for metal-matrix composites.

Other Notes

Graphene nanoplatelets have naturally occurring functional groups like ethers, carboxyls, or hydroxyls that can react with atmospheric humidity to form acids or other compounds. These functional groups are present on the edges of the particles and their wt% varies with particle size.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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