734624
Samarium-doped ceria
<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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关于此项目
经验公式（希尔记法）:
CeO2
分子量:
172.11
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.23
MDL number:
产品名称
氧化钐掺杂的氧化铈(IV), <0.5 μm particle size, powder, contains 20 mol % samarium as dopant
SMILES string
[Sm].O=[Ce]=O
InChI key
AQGZISMLQKBRRO-UHFFFAOYSA-N
InChI
1S/Ce.2O.Sm
form
powder
contains
20 mol % samarium as dopant
composition
Sm0.2Ce0.8O1.9
greener alternative product characteristics
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
surface area
10-14 m2/g
particle size
0.1-0.5 μm (d50)
<0.5 μm
bulk density
1.787 g/mL
greener alternative category
, Enabling
Quality Level
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Application
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.
General description
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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存储类别
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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
AC impedance investigation of samarium-doped ceria."
Zhan Z, et al.
Journal of the Electrochemical Society, 148(5), A427-A432 (2001)
Harsharan K Singh et al.
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Diego H Sanchez et al.
PLoS genetics, 10(11), e1004806-e1004806 (2014-11-21)
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Jun Zhang et al.
Scientific reports, 4, 7082-7082 (2014-11-19)
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