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Merck
CN

734624

Sigma-Aldrich

氧化钐掺杂的氧化铈(IV)

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

别名:

SDC, 钐掺杂的二氧化铈

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About This Item

经验公式(希尔记法):
CeO2
分子量:
172.11
MDL编号:
UNSPSC代码:
26111700
PubChem化学物质编号:
NACRES:
NA.23

表单

powder

质量水平

包含

20 mol % samarium as dopant

组成

Sm0.2Ce0.8O1.9

环保替代产品特性

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

sustainability

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表面积

10-14 m2/g

粒径

0.1-0.5 μm (d50)
<0.5 μm

堆积密度

1.787 g/mL

环保替代产品分类

SMILES字符串

[Sm].O=[Ce]=O

InChI

1S/Ce.2O.Sm

InChI key

AQGZISMLQKBRRO-UHFFFAOYSA-N

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一般描述

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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应用

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.

储存分类代码

11 - Combustible Solids

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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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
Oxygen vacancy ordering in heavily rare-earth-doped ceria.
Ou DR, et al.
Applied Physics Letters, 89(17) (2006)
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)
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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