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637025

Sigma-Aldrich

Cobalt(II,III) oxide

nanopowder, <50 nm particle size (SEM), 99.5% trace metals basis

Synonyme(s) :

Cobalt tetraoxide, Cobaltic-cobaltous oxide, Tricobalt tetraoxide

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About This Item

Formule linéaire :
~Co3O4
Numéro CAS:
1308-06-1
Poids moléculaire :
240.80
Numéro MDL:
MFCD00010939
Code UNSPSC :
12352302
ID de substance PubChem :
24882820
Nomenclature NACRES :
NA.23

Niveau de qualité

200

Pureté

99.5% trace metals basis

Forme

nanopowder

Superficie

40-70 m2/g , typical range

Taille des particules

<50 nm (SEM)

Pf

895 °C (dec.) (lit.)

Densité

6.11 g/mL at 25 °C (lit.)

Masse volumique apparente

0.57 g/mL

Application(s)

battery manufacturing

Chaîne SMILES 

O=[Co].O=[Co]O[Co]=O

InChI

1S/3Co.4O

Clé InChI

LBFUKZWYPLNNJC-UHFFFAOYSA-N

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Description générale

Cobalt oxide is a p-type semiconductor thatbelongs to the normal spinel crystal structure with cubic close packing ofoxide ions. It has variable oxidation states and multiple band gapenergies (2.28eV and 1.57eV). It is paramagnetic at room temperature.

Application

Cobalt(II,III) oxide nanoparticles can be used:

  • To modify the glassycarbon electrode for the detection of As(III) at nanomolar concentrationrange.
  • To prepare a robust photocatalyst along withcarbon nanospheres for dye degradation and hydrogen evolution reaction.
  • As an electrodematerial in the preparation of supercapacitors.

Pictogrammes

Health hazard
GHS08

Mention d'avertissement

Danger

Mentions de danger

H334,H350i,H412

Classification des risques

Aquatic Chronic 3 - Carc. 1A Inhalation - Resp. Sens. 1

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCP7794
MKCQ1250
MKCN4294
MKCP2253
MKCN9600

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