734624
Cerium(IV) oxide-samarium doped
<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
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Formulario
powder
Nivel de calidad
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
, Enabling
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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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
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