734624
Cerium(IV) oxide-samarium doped
<0.5 μm particle size, powder, contains 20 mol % samarium as dopant
Sinônimo(s):
SDC-20, SDC, Samarium-doped ceria
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About This Item
Fórmula empírica (Notação de Hill):
CeO2
Peso molecular:
172.11
Número MDL:
Código UNSPSC:
26111700
ID de substância PubChem:
NACRES:
NA.23
Produtos recomendados
Formulário
powder
Nível de qualidade
contém
20 mol % samarium as dopant
composição
Sm0.2Ce0.8O1.9
características do produto alternativo mais ecológico
Design for Energy Efficiency
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sustainability
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área da superfície
10-14 m2/g
tamanho de partícula
0.1-0.5 μm (d50)
<0.5 μm
densidade volumétrica
1.787 g/mL
categoria alternativa mais ecológica
, Enabling
cadeia de caracteres SMILES
[Sm].O=[Ce]=O
InChI
1S/Ce.2O.Sm
chave InChI
AQGZISMLQKBRRO-UHFFFAOYSA-N
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Descrição geral
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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Aplicação
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 classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 2
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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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.
Applied Physics Letters, 89(17) (2006)
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