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Sigma-Aldrich

Cerium(IV) oxide-gadolinium doped

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pellets (for sputtering), contains 20 mol % gadolinium as dopant

Synonym(s):

GDC-20, Gadolinium doped ceria

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About This Item

Empirical Formula (Hill Notation):
CeO2
Molecular Weight:
172.11
MDL number:
MFCD04040745
UNSPSC Code:
26111700
PubChem Substance ID:
329764916
NACRES:
NA.23

form

pellets (for sputtering)

contains

20 mol % gadolinium as dopant

composition

Gd0.2Ce0.8O1.9

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Design for Energy Efficiency
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diam. × L

2-3 mm × 3-5 mm

greener alternative category

, Enabling

SMILES string

[Gd].O=[Ce]=O

InChI

1S/Ce.Gd.2O

InChI key

ZBPTVGKVCOMWPA-UHFFFAOYSA-N

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General description

Cerium(IV) oxide-gadolinium doped pellets (20 mol% gadolinium doped) (GDC-20) is an electrolytic material with high oxygen-ion conductivity, which operates at low temperatures. It can be prepared by a variety of methods such as sputtering, aerosol deposition, sol-gel, wet chemical process, co-precipitation, hydrothermal and other combustion routes.[1][2][3]
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Application

Gadolinium doped ceria (GDC) may be used as an intermediate temperature electrolyte for solid oxide fuel cells (SOFCs) at elevated temperatures.[4][2]

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBG4561

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Electrical conductivity of RF-sputtered Gd-doped ceria film measured in across-plane mode
Kim SW and Choi GM
Solid State Ionics, 309(7), 58-62 (2017)
Kowalski, K.
Diffusion and Defect Data, Solid State Data, Part A, 769-769 (2009)
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
Chemically-induced stresses in gadolinium-doped ceria solid oxide fuel cell electrolytes
Atkinson A, et al.
Solid State Ionics, 95(3-4), 249-258 null
Thermal expansion of Gd-doped ceria and reduced ceria.
Hayashi H, et al.
Solid State Ionics, 132(3), 227-233 (2000)
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