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544841

Sigma-Aldrich

Cerium(IV) oxide

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nanopowder, <25 nm particle size (BET)

Synonyme(s) :

Ceric oxide, Ceric oxide, ceria

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About This Item

Formule linéaire :
CeO2
Numéro CAS:
1306-38-3
Poids moléculaire :
172.11
Numéro CE :
215-150-4
Numéro MDL:
MFCD00010933
Code UNSPSC :
26111700
ID de substance PubChem :
24878788
Nomenclature NACRES :
NA.23

Forme

nanopowder

Pertinence de la réaction

reagent type: catalyst
core: cerium

Caractéristiques du produit alternatif plus écologique

Design for Energy Efficiency
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Taille des particules

<25 nm (BET)

Densité

7.13 g/mL at 25 °C (lit.)

Application(s)

battery manufacturing

Autre catégorie plus écologique

Enabling

Chaîne SMILES 

O=[Ce]=O

InChI

1S/Ce.2O

Clé InChI

CETPSERCERDGAM-UHFFFAOYSA-N

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Description générale

Cerium(IV)oxide (CeO₂), also known as ceric oxide, ceria, or cerium dioxide, is an oxide of the rare-earth metal cerium. It appears as a white to yellow nanopowder with a particle size of less than 25 nm (BET), exhibiting high surface area and reactivity. It is used in various applications, including catalysis, electrochemical applications, and in glass and ceramics. CeO₂ is widely employed in catalytic converters for automotive applications, where it aids in the reduction of harmful emissions. Additionally, it is used in the production of advanced ceramics, glass polishing, and as a catalyst in various chemical reactions. Its unique properties also make it valuable in solid oxide fuel cells and as a UV filter in sunscreens.

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Application

CeO2nanopowder is utilized in solid oxide fuel cells (SOFCs) due to its ionicconductivity and stability at high temperatures. It is also used in batteriesand supercapacitors to improve performance. Additionally, CeO2 is used as a polishing powder in the glass andsemiconductor industries. Its fine particle size and hardness make it effectivefor achieving high surface finishes on optical components.
The additon of CeO2 to CuO/TiO2 increases specific surface area and inhibits sintering and pore size growth at high temperatures.

Informations légales

Product of Engi-Mat Co.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificats d'analyse (COA)

Lot/Batch Number
MKCQ9211
MKCQ5994
MKCQ5062
MKCQ0253
MKCP2984

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Vishal Shah et al.
PloS one, 7(10), e47827-e47827 (2012-10-31)
Cerium oxide nanoparticles have found numerous applications in the biomedical industry due to their strong antioxidant properties. In the current study, we report the influence of nine different physical and chemical parameters: pH, aeration and, concentrations of MgSO(4), CaCl(2), KCl
Hailong Li et al.
Journal of hazardous materials, 243, 117-123 (2012-11-08)
MnO(x)-CeO(2) mixed-oxide supported on TiO(2) (Mn-Ce/Ti) was synthesized by an ultrasound-assisted impregnation method and employed to oxidize elemental mercury (Hg(0)) at 200°C in simulated coal combustion flue gas. Over 90% of Hg(0) oxidation was achieved on the Mn-Ce/Ti catalyst at
Cecilia Mondelli et al.
Chimia, 66(9), 694-698 (2012-12-06)
The heterogeneously catalyzed gas-phase oxidation of HCl to Cl(2) offers an energy-efficient and eco- friendly route to recover chlorine from HCl-containing byproduct streams in the chemical industry. This process has attracted renewed interest in the last decade due to an
Peng Zhang et al.
ACS nano, 6(11), 9943-9950 (2012-10-27)
Biotransformation is a critical factor that may modify the toxicity, behavior, and fate of engineered nanoparticles in the environment. CeO(2) nanoparticles (NPs) are generally recognized as stable under environmental and biological conditions. The present study aims to investigate the biotransformation
Gao Li et al.
Chemical communications (Cambridge, England), 48(98), 12005-12007 (2012-11-07)
The Au(25)(SR)(18)/CeO(2) nanocluster catalyst showed high activity in the homocoupling of aryl iodides (e.g. up to 99.8% yield with iodobenzene) and excellent recyclability.
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