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637025

Sigma-Aldrich

Cobalt(II,III) oxide

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

Sinônimo(s):

Cobalt tetraoxide, Cobaltic-cobaltous oxide, Tricobalt tetraoxide

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About This Item

Fórmula linear:
~Co3O4
Número CAS:
1308-06-1
Peso molecular:
240.80
Número MDL:
MFCD00010939
Código UNSPSC:
12352302
ID de substância PubChem:
24882820
NACRES:
NA.23

Nível de qualidade

200

Ensaio

99.5% trace metals basis

forma

nanopowder

área da superfície

40-70 m2/g , typical range

tamanho de partícula

<50 nm (SEM)

pf

895 °C (dec.) (lit.)

densidade

6.11 g/mL at 25 °C (lit.)

densidade volumétrica

0.57 g/mL

aplicação(ões)

battery manufacturing

cadeia de caracteres SMILES

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

InChI

1S/3Co.4O

chave InChI

LBFUKZWYPLNNJC-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

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.

Pictogramas

Health hazard
GHS08

Palavra indicadora

Danger

Frases de perigo

H334 - H350i - H412

Classificações de perigo

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

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

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