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Merck
CN
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文件

安全信息

900439

Sigma-Aldrich

石墨烯纳米微片

<2 μm particle size

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别名:
GNPs, xGnP® graphene nanoplatelets-grade C-500
经验公式（希尔记法）:
C
CAS号:
7782-42-5
分子量:
12.01
EC 号:
231-955-3
UNSPSC代码:
12141908
NACRES:
NA.23

描述

Appearance: Black powder
relative gravity: 2.0-2.25 g/cm3

质量水平

100

形式

powder

表面积

500 m2/g

厚度

a few nm

粒径

<2 μm

堆积密度

0.2‑0.4 g/cm3

InChI

1S/C

InChI key

OKTJSMMVPCPJKN-UHFFFAOYSA-N

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相关类别

一般描述

  • 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 submicron 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 shows 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.

应用

  • 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.

其他说明

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.

法律信息

xGnP is a registered trademark of XG Sciences, Inc.

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

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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)

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