Gadolinium-doped ceria

Name: Gadolinium-doped ceria
Brand: ALDRICH
Price: 179 EUR

nanopowder, contains 20 mol % gadolinium as dopant

Synonym(s):

Cerium(IV) oxide-gadolinium doped, Cerium-gadolinium oxide, Gadolinium doped ceria

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25 G

€179.00

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About This Item

Empirical Formula (Hill Notation):

CeO₂

Molecular Weight:

172.11

UNSPSC Code:

26111700

PubChem Substance ID:

24880633

NACRES:

NA.23

MDL number:

MFCD04040745

Key Documents

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Product Name

Cerium(IV) oxide-gadolinium doped, nanopowder, contains 20 mol % gadolinium as dopant

SMILES string

[Gd].O=[Ce]=O

InChI

1S/Ce.Gd.2O

InChI key

ZBPTVGKVCOMWPA-UHFFFAOYSA-N

form

nanopowder

contains

20 mol % gadolinium as dopant

composition

Ce_0.8Gd_0.2O₂

reaction suitability

reagent type: catalyst
core: cerium

greener alternative product characteristics

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sustainability

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surface area

>100 m²/g

particle size

<100 nm

greener alternative category

, Enabling

Quality Level

100

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1 of 4

This Item	734624	544841	700290
Sigma-Aldrich 572357 Cerium(IV) oxide-gadolinium doped	Sigma-Aldrich 734624 Cerium(IV) oxide-samarium doped	Sigma-Aldrich 544841 Cerium(IV) oxide	Sigma-Aldrich 700290 Cerium(IV) oxide
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 100
form nanopowder	form powder	form nanopowder	form nanopowder
contains 20 mol % gadolinium as dopant	contains 20 mol % samarium as dopant	contains -	contains -
composition Ce_0.8Gd_0.2O₂	composition Sm_0.2Ce_0.8O_1.9	composition -	composition -
reaction suitability reagent type: catalyst core: cerium	reaction suitability -	reaction suitability reagent type: catalyst core: cerium	reaction suitability -
greener alternative product characteristics Design for Energy Efficiency Learn more about the Principles of Green Chemistry.	greener alternative product characteristics Design for Energy Efficiency Learn more about the Principles of Green Chemistry.	greener alternative product characteristics Design for Energy Efficiency Learn more about the Principles of Green Chemistry.	greener alternative product characteristics Design for Energy Efficiency Learn more about the Principles of Green Chemistry.

Application

Gadolinium doped ceria (GDC) may be used as an intermediate temperature electrolyte for solid oxide fuel cells (SOFCs) at elevated temperatures.[1][2]

General description

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

Gadolinium doped ceria may be prepared by cation complexation sol gel technique. XRD, specific surface area, morphology has been described in a study.[2] Higher oxygen ion conductivity of GDC over zirconia based materials makes it a preferable choice for some components of SOFCs.[4]

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Packaging

Packaged in glass bottles

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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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

Synthesis and properties of Gadolinium-doped ceria solid solutions for IT-SOFC electrolytes

Fuentes RO and Baker RT

International Journal of Hydrogen Energy, 33(13), 3480-3484 (2008)

Thermal expansion of Gd-doped ceria and reduced ceria.

Hayashi H, et al.

Solid State Ionics, 132(3), 227-233 (2000)

Microstructure and Grain-Boundary Effect on Electrical Properties of Gadolinium-Doped Ceria.

Zhou XD, et al.

Journal of the American Ceramic Society. American Ceramic Society, 85(7), 1757-1762 (2002)

Articles

Advances in Materials for Solid Oxide Fuel Cells

As with all types of fuel cells, a Solid Oxide Fuel Cell (SOFC) is capable of efficiently transforming chemical energy into electrical energy.

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