637025
Cobalt(II,III) oxide
nanopowder, <50 nm particle size (SEM), 99.5% trace metals basis
Synonym(s):
Cobalt tetraoxide, Cobaltic-cobaltous oxide, Tricobalt tetraoxide
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About This Item
Linear Formula:
~Co3O4
CAS Number:
Molecular Weight:
240.80
NACRES:
NA.23
UNSPSC Code:
12352302
MDL number:
PubChem Substance ID:
Quality Segment
assay
99.5% trace metals basis
form
nanopowder
reaction suitability
core: cobalt
surface area
40-70 m2/g , typical range
particle size
<50 nm (SEM)
mp
895 °C (dec.) (lit.)
density
6.11 g/mL at 25 °C (lit.)
bulk density
0.57 g/mL
application(s)
battery manufacturing
battery precursors
glass & ceramic
SMILES string
O=[Co].O=[Co]O[Co]=O
InChI
1S/3Co.4O
InChI key
LBFUKZWYPLNNJC-UHFFFAOYSA-N
General description
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.
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Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Carc. 1A Inhalation - Resp. Sens. 1
Storage Class
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
flash_point_f
Not applicable
flash_point_c
Not applicable
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