697745

Sigma-Aldrich

Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%

别名:
碳包覆钴纳米粒子, 磁性钴
Empirical Formula (Hill Notation):
Co
CAS号:
分子量:
58.93
MDL编号:
PubChem化学物质编号:
NACRES:
NA.23

质量水平

100

物料

carbon

测定

≥99%

形式

nanopowder

组成

Carbon content, <8 wt. %

磁化

>150 emu/g, Mass saturation

电阻率

6.24 μΩ-cm, 20°C

粒径

<50 nm (TEM)

表面积

BET surf. area >15 m2/g

bp

2900 °C (lit.)

密度

8.9 g/mL at 25 °C (lit.)

特色行业

Battery Manufacturing

SMILES string

[Co]

InChI

1S/Co

InChI key

GUTLYIVDDKVIGB-UHFFFAOYSA-N

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应用

Air- and thermally-stable magnetic carbon-coated cobalt nanoparticles (nanomagnets). Carbon shell consists of approximately three graphitic layers and can be chemically functionalized using e.g. diazotization reactions.

包装

500 mg in glass insert

警示用语:

Danger

hazcat

Acute Tox. 1 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1 - STOT RE 2

storage_class_code

4.1B - Flammable solid hazardous materials

WGK Germany

WGK 3

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

分析证书

原产地证书 (CofO)

Alexander Schätz et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 14(27), 8262-8266 (2008-07-31)
TEMPO was grafted on graphene-coated nanobeads with a magnetic cobalt core by using a general applicable "click"-chemistry protocol. The new heterogeneous CoNP-TEMPO emerged as a highly active catalyst for the chemoselective oxidation of primary and secondary alcohols using bleach as...
Covalently functionalized cobalt nanoparticles as a platform for magnetic separations in organic synthesis.
Robert N Grass et al.
Angewandte Chemie (International ed. in English), 46(26), 4909-4912 (2007-05-23)
Luechinger, N.A.; Booth, N.; Heness, G.; Bandyopadhyay, S.; Grass, R.N.; Stark W.J.
Advanced Materials, 20, 3044-3044 (2008)
Chun Ghee Tan et al.
Chemical communications (Cambridge, England), (36), 4297-4299 (2008-09-20)
To develop magnetic nanomaterials applicable to organic synthesis, the Suzuki cross-coupling method was adapted to attach a range of functional groups to carbon-coated core-shell materials via commercially-available substituted arylboronic acids.
D W Su et al.
Journal of nanoscience and nanotechnology, 13(5), 3354-3359 (2013-07-19)
Highly ordered mesoporous Co3O4 nanostructures were prepared using SBA-15 silica as hard templates. The mesoporous structures were characterized by X-ray diffraction, high resolution transmission electron microscopy, and N2 adsorption/desorption isotherm analysis. The results demonstrated that the as-prepared mesoporous Co3O4 has...
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