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Sigma-Aldrich

Graphene nanoplatelets

<2 μm particle size

Sinónimos:

GNPs, xGnP® graphene nanoplatelets-grade C-750

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250 G
$116.00

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$116.00

About This Item

Fórmula empírica (notación de Hill):
C
Número de CAS:
7782-42-5
Peso molecular:
12.01
Número CE:
231-955-3
Número MDL:
MFCD00133992
Código UNSPSC:
12141908
NACRES:
NA.23

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descripción

relative gravity: 2.0-2.25 g/cm3

Nivel de calidad

100

Formulario

powder

superficie

750 m2/g

grosor

a few nm

tamaño de partícula

<2 μm

densidad aparente

0.2‑0.4 g/cm3

cadena SMILES

[C]

InChI

1S/C

Clave InChI

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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Descripción general

xGnP® graphene nanoplatelets are unique nanoparticles consisting of short stacks of graphene sheets having a platelet shape.
The unique size and platelet morphology of xGnP® graphene nanoplatelets makes these particles especially effective at providing barrier properties, while their pure graphitic composition makes them excellent electrical and thermal conductors. xGnP® graphene nanoplatelets can improve mechanical properties such as stiffness, strength, and surface hardness of the matrix material.
xGnP® graphene nanoplatelets are compatible with almost all polymers, and can be an active ingredient in inks or coatings as well as an excellent additive to plastics of all types. The unique manufacturing processes are non-oxidizing, so material has a pristine graphitic surface of sp2 carbon molecules that makes it especially suitable for applications requiring high electrical or thermal conductivity.
Grade C particles typically consist of aggregates of sub-micron platelets that have a particle diameter of less than 2 microns and a typical particle thickness of a few nanometers, depending on the surface area. In general, grade C particles show very high surface area and macro-porosity. Grade C particles are available in different grades with average surface areas of 300, 500 and 750 m2/g.

Aplicación

  • 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.

Otras notas

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.

Surface area of 750 m2/g is an average surface area.

Información legal

xGnP is a registered trademark of XG Sciences, Inc.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
MKCR7735
MKCR7736
MKCQ3076
MKCP4989
MKCM5662

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Thermally Conductive Graphene-Polymer Composites: Size, Percolation, and Synergy Effects.
Shtein, et al.
Chemistry of Materials, 27(6), 2100-2106 (2015)
Mechanical properties of graphene nanoplatelet/epoxy composites.
King JA, et al.
Journal of Composite Materials, 49(6), 659-668 (2015)
Performance dependence of thermosyphon on the functionalization approaches: An experimental study on thermo-physical properties of graphene nanoplatelet-based water nanofluids.
Amiri A, et al.
Energy Conversion and Management , 92, 322-330 (2015)
Per Haberkant et al.
Biochimica et biophysica acta, 1841(8), 1022-1030 (2014-01-21)
Understanding biological processes at the mechanistic level requires a systematic charting of the physical and functional links between all cellular components. While protein-protein and protein-nucleic acid networks have been subject to many global surveys, other critical cellular components such as
In vivo profiling and visualization of cellular protein-lipid interactions using bifunctional fatty acids.
Per Haberkant et al.
Angewandte Chemie (International ed. in English), 52(14), 4033-4038 (2013-03-02)

Artículos

Recent Advances in Scalable Synthesis and Processing of Two-Dimensional Materials

Advances in scalable synthesis and processing of two-dimensional materials

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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