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764531

Yttrium-doped ceria

Name: Yttrium-doped ceria
Brand: ALDRICH

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

PubChem Substance ID:

329767128

UNSPSC Code:

26111700

MDL number:

MFCD04039918

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Properties

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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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

Description

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

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.

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.

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pictograms

GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

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)

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)

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Global Trade Item Number

SKU	GTIN
764531-25G	04061833002957