572357

Sigma-Aldrich

Cerium(IV) oxide-gadolinium doped

greener alternative

nanopowder, contains 20 mol % gadolinium as dopant

Synonym(s):
Gadolinium doped ceria
Empirical Formula (Hill Notation):
CeO2
Molecular Weight:
172.11
MDL number:
PubChem Substance ID:
NACRES:
NA.23
Pricing and availability is not currently available.

Quality Level

form

nanopowder

contains

20 mol % gadolinium as dopant

composition

Ce0.8Gd0.2O2

reaction suitability

reagent type: catalyst
core: cerium

greener alternative product characteristics

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

particle size

<100 nm

surface area

>100 m2/g

Featured Industry

Battery Manufacturing

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

Application

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

Packaging

25 g in glass bottle
Packaged in glass bottles

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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

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