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Merck

734624

Sigma-Aldrich

Cerium(IV) oxide-samarium doped

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

Sinónimos:

SDC-20, SDC, Samarium-doped ceria

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About This Item

Fórmula empírica (notación de Hill):
CeO2
Peso molecular:
172.11
Número MDL:
Código UNSPSC:
26111700
ID de la sustancia en PubChem:
NACRES:
NA.23

Formulario

powder

contiene

20 mol % samarium as dopant

composición

Sm0.2Ce0.8O1.9

características de los productos alternativos más sostenibles

Design for Energy Efficiency
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sustainability

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superficie

10-14 m2/g

tamaño de partícula

0.1-0.5 μm (d50)
<0.5 μm

densidad aparente

1.787 g/mL

categoría alternativa más sostenible

cadena SMILES

[Sm].O=[Ce]=O

InChI

1S/Ce.2O.Sm

Clave InChI

AQGZISMLQKBRRO-UHFFFAOYSA-N

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Descripción general

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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Aplicación

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.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


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Stephan Immenschuh et al.
Transplantation, 99(1), 56-62 (2014-08-15)
Treatment of patients with antibody-mediated rejection (AMR) after kidney transplantation by rituximab and plasmapheresis is ambiguous. Because of its unknown efficiency and serious side effects, biomarkers, which are predictive for responsiveness to this treatment in AMR patients, are required. Twenty
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)
Oxygen vacancy ordering in heavily rare-earth-doped ceria.
Ou DR, et al.
Applied Physics Letters, 89(17) (2006)
Hugo J Avila-Paredes et al.
Physical chemistry chemical physics : PCCP, 11(38), 8580-8585 (2009-09-24)
We report a correlation between oxygen ionic conductivity and the enthalpy of formation of trivalent-doped ceria from the component binary oxides observed at relatively low temperatures (150-275 degrees C). The bulk conductivities of La-doped ceria samples identical to those previously
Diego H Sanchez et al.
PLoS genetics, 10(11), e1004806-e1004806 (2014-11-21)
Epigenetic mechanisms suppress the transcription of transposons and DNA repeats; however, this suppression can be transiently released under prolonged heat stress. Here we show that the Arabidopsis thaliana imprinted gene SDC, which is silent during vegetative growth due to DNA

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