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697745

Sigma-Aldrich

Kobalt

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

Synonym(e):

Cobaltbeschichtete Kohlenstoffnanopartikel, magnetisches Cobalt

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About This Item

Empirische Formel (Hill-System):
Co
CAS-Nummer:
7440-48-4
Molekulargewicht:
58.93
MDL-Nummer:
MFCD00010935
UNSPSC-Code:
12352302
PubChem Substanz-ID:
329761949
NACRES:
NA.23

Materialien

carbon

Qualitätsniveau

100

Assay

≥99%

Form

nanopowder

Zusammensetzung

Carbon content, <8 wt. %

Magnetisierung

>150 emu/g, Mass saturation

Widerstandsfähigkeit

6.24 μΩ-cm, 20°C

Oberflächenbereich

>15 m2/g

Partikelgröße

<50 nm (TEM)

bp

2900 °C (lit.)

Dichte

8.9 g/mL at 25 °C (lit.)

Anwendung(en)

battery manufacturing

SMILES String

[Co]

InChI

1S/Co

InChIKey

GUTLYIVDDKVIGB-UHFFFAOYSA-N

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Verwandte Kategorien

Anwendung

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.
Chemical Synthesis of Monodisperse Magnetic Nanoparticles

Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

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

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (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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