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Merck
CN

764531

Yttrium-doped ceria

greener alternative

nanopowder, contains 10 mol % yttria, <50 nm particle size, 99.9% trace metals basis

Synonym(s):

10YDC, Cerium(IV) oxide-yttria doped, YDC-10, YDC10, Cerium yttrium oxide, YDC, Yttria doped ceria, Yttrium doped ceria

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About This Item

Empirical Formula (Hill Notation):
CeO2/Y2O3
CAS Number:
170033-03-1
MDL number:
MFCD04039918
UNSPSC Code:
26111700
PubChem Substance ID:
329767128

Key Documents

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Product Name

Cerium(IV) oxide-yttria doped, nanopowder, contains 10 mol % yttria, <50 nm particle size, 99.9% trace metals basis

Assay

99.9% trace metals basis

form

nanopowder

contains

10 mol % yttria

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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particle size

<50 nm

mp

>400 °C

greener alternative category

, Enabling

SMILES string

O=[Ce]=O.O=[Y]O[Y]=O

InChI

1S/Ce.5O.2Y

InChI key

XVLUKJGVKWVXMP-UHFFFAOYSA-N

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General description

8mol% Yttria doped ceria may be prepared by carbonate coprecipitation technique. Yttria doped ceria exihibits high ionic conductivity, low activation energy and small grain boundary resistance. The effect of microstructure on the electrolytic properties was investigated in detail.
Cerium(IV) oxide-yttria doped (YDC-10) is an electrolytic material that is used as an alternative to zirconia-based electrolytes. Its properties include high ionic conductivity (0.01 S cm−1), electronic conductivity (3 S cm−1), enhanced electrode reactions, and high oxygen surface exchange coefficient.
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Application

They are promising ceramic electrolytes for solid oxide fuel cells operating at low temperatures of 500-700°C (IT-SOFC). Doped ceria interlayers in between bulk yttria-stabilized zirconia electrolyte further enhance the performance of SOFCs.
YDC-10 can be used as an electrolyte in the fabrication of solid oxide fuel cells (SOFCs). A thin film of YDC-10 (~17.5 nm) effectively reduces the cathode/interfacial energy by 0.1 eV and increases the exchange current density by a factor of 4. YDC-10 can be operated with a temperature range of 300° - 500°C.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKBL5973

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Wang, Y; et al.
Solid State Ionics, 177, 1681-1681 (2006)
Cales, B.; et al.
Journal of Physics and Chemistry of Solids, 45, 929-929 (1984)
Influence of nano-structural feature on electrolytic properties in Y2O3 doped CeO2 system.
Mori T, et al.
Science and Technology of Advanced Materials, 4(3), 213-220 (2003)
Fabrication and sintering of fine yttria-doped ceria powder
Van HJ, et al.
Journal of the American Ceramic Society. American Ceramic Society, 80(4), 933-940 (1997)
A Yitbarek et al.
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