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Sigma-Aldrich

Cerium(IV) oxide-samarium doped

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<0.5 μm particle size, powder, contains 20 mol % samarium as dopant

Sinonimo/i:

SDC-20, SDC, Samarium-doped ceria

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About This Item

Formula empirica (notazione di Hill):
CeO2
Peso molecolare:
172.11
Numero MDL:
MFCD04974842
Codice UNSPSC:
26111700
ID PubChem:
329764915
NACRES:
NA.23

Forma fisica

powder

contiene

20 mol % samarium as dopant

Composizione

Sm0.2Ce0.8O1.9

Caratteristiche più verdi

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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Area superficiale

10-14 m2/g

Dimensione particelle

0.1-0.5 μm (d50)
<0.5 μm

Densità bulk

1.787 g/mL

Categoria alternativa più verde

, Enabling

Stringa SMILE

[Sm].O=[Ce]=O

InChI

1S/Ce.2O.Sm
AQGZISMLQKBRRO-UHFFFAOYSA-N

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Descrizione generale

Cerium(IV) oxide-samarium doped powder (20% mol samarium doped) (SDC-20) is an electrolytic material with a high oxygen ion conductivity. Samarium ion acts as an aliovalent cation that can be incorporated into the host lattice to increase the oxygen vacancy concentration and improve the oxide ion conduction in cerium oxide. It can be synthesized by reverse strike co-precipitation technique.
Samarium doped ceria may be used as an electrolyte in solid oxide fuel cells (SOFCs). Electrical conductivity as a function of temperature of doped ceria was investigated in a study. Relation of dopant type, oxygen vacancy ordering and ionic conductivity was investigated by transmission electron microscopy and electron energy loss spectroscopy.
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Applicazioni

Cerium(IV) oxide-samarium doped can be used in the fabrication of solid oxide fuel cells (SOFCs), which can further be used as environmentally-friendly sources of alternative energy.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
MKCQ9338
MKCP5542
MKCM1109
MKCH9579
MKCC9444

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A qualitative highly predictive urinary test for polyomavirus nephropathy (PVN) is the PV-Haufen test. This article evaluates whether a quantitative PV-Haufen analysis, that is, the number of PV-Haufen shed per milliliter urine, predicts PVN disease grades and the severity of
AC impedance investigation of samarium-doped ceria."
Zhan Z, et al.
Journal of the Electrochemical Society, 148(5), A427-A432 (2001)
Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+ δ cathode on samarium-doped ceria electrolyte.
Chen D, et al.
Journal of Power Sources, 188(1), 96-105 (2009)
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Oxygen vacancy ordering in heavily rare-earth-doped ceria.
Ou DR, et al.
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