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697745

Sigma-Aldrich

Cobalt

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

Sinonimo/i:

Cobalt element, Cobalt-59

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About This Item

Formula empirica (notazione di Hill):
Co
Numero CAS:
7440-48-4
Peso molecolare:
58.93
Numero MDL:
MFCD00010935
Codice UNSPSC:
12352302
ID PubChem:
329761949
NACRES:
NA.23

Materiali

carbon

Saggio

≥99%

Forma fisica

nanopowder

Composizione

Carbon content, <8 wt. %

Magnetizzazione

>150 emu/g, Mass saturation

Resistività

6.24 μΩ-cm, 20°C

Area superficiale

>15 m2/g

Dimensione particelle

<50 nm (TEM)

P. eboll.

2900 °C (lit.)

Densità

8.9 g/mL at 25 °C (lit.)

applicazioni

battery manufacturing

Stringa SMILE

[Co]

InChI

1S/Co
GUTLYIVDDKVIGB-UHFFFAOYSA-N

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Categorie correlate

Applicazioni

Chemical Synthesis of Monodisperse Magnetic Nanoparticles
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.

Avvertenze

Danger

Classi di pericolo

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

Codice della classe di stoccaggio

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
MKCN2148
MKCL5254
MKCH2748
MKCD8588
MKCB1778V

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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
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.
Luechinger, N.A.; Booth, N.; Heness, G.; Bandyopadhyay, S.; Grass, R.N.; Stark W.J.
Advanced Materials, 20, 3044-3044 (2008)
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)
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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