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Cerium(IV) oxide-yttria doped

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nanopowder, yttria 20 mol %, <50 nm particle size (TEM), 99.9% trace metals basis

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Synonym(s):
20YDC, YDC-20, YDC20, Cerium yttrium oxide, YDC, Yttria doped ceria, Yttrium doped ceria
Empirical Formula (Hill Notation):
CeO2/Y2O3
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.9% trace metals basis

form

nanopowder

composition

yttria, 20 mol %

greener alternative product characteristics

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

particle size

<50 nm (TEM)

greener alternative category

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 exhibits 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-20) 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-20 can be used as an electrolyte in the fabrication of solid oxide fuel cells (SOFCs). A thin film of YDC-20 (~17.5 nm) effectively reduces the cathode/interfacial energy by 0.1 eV and increases the exchange current density by a factor of 4. It can be operated with a temperature range of 300° - 500°C.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Abazari; M.; et al.
Journal of the American Ceramic Society. American Ceramic Society, 95, 312-312 (2012)
A Yitbarek et al.
Poultry science, 94(8), 1802-1811 (2015-06-08)
Prebiotics and synbiotics are considered to be among the most promising replacements for in-feed antibiotic growth promoters (AGP) in poultry feed. The current study was designed to study the effect of Bacitracin methylene disalicylate (BMD) (Control), yeast-derived carbohydrates (YDC), and
Sato, K.; et al.
Solid State Ionics, 180, 1220-1220 (2009)
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)
sai; T.; Barnett; S. A.
Solid State Ionics, 98, 191-191 (1997)

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