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Key Documents

796085

Sigma-Aldrich

Cerium oxide

aqueous nanoparticle dispersion, <5 nm (DLS), 20% solids by weight, pH ~8

Synonym(s):

Cerium(IV) oxide, dispersion, CEO-W920

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About This Item

Linear Formula:
CeO2
Molecular Weight:
172.11
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:

Quality Level

form

dispersion

reaction suitability

reagent type: catalyst
core: cerium

particle size

<5 nm (DLS)

pH

~8

storage temp.

2-8°C

SMILES string

O=[Ce]=O

InChI

1S/Ce.2O

InChI key

CETPSERCERDGAM-UHFFFAOYSA-N

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Application

This material is highly monodisperse in size and shape (<0.25 polydispersity index) and provides significantly improved surface reactivity. It is stable at high suspension densities when utilized at the recommended pH range. Applications include emissions catalysis, fuel cell electrolytes, polishing of optical surfaces, planarization of semiconductors, as a substrate for precious metals used in oxidation catalysis, catalysis for the splitting of water for hydrogen production, and as a radical oxygen scavenger in biological systems.

Legal Information

Product of Cerion, Inc

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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