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464228 Sigma-Aldrich

Zirconium(IV) oxide-yttria stabilized

Green Alternative

submicron powder, 99.9% trace metals basis (purity excludes ~2% HfO2)

Synonym: YSZ, Yttria stabilized zirconia, Yttrium stabilized zirconium oxide

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Properties

Related Categories Alternative Energy, Chemical Synthesis, Electrolyte Materials, Electrolytes, Enabling Products,
Quality Level   100
assay   99.9% trace metals basis (purity excludes ~2% HfO2)
form   submicron powder
contains   ~8 wt. % yttria as stabilizer
greener alternative product characteristics   Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
particle size   ~700 nm
surface area   5.0-9.0 m2/g
mp   >2,600 °C (lit.)
Featured Industry   Battery Manufacturing
SMILES string   O=[Zr]=O.O=[Y]O[Y]=O
InChI   1S/5O.2Y.Zr
InChI key   KSTOPEBVPBSOTK-UHFFFAOYSA-N

Description

General description

Yttria stabilized zirconia (YSZ) is the most commonly used solid electrolyte for solid oxide fuel cells (SOFCs) and oxygen sensors. YSZ exhibits high oxygen-ionic conductivity while blocking electronic conduction. YSZ particles may be synthesized from yttrium nitrate or isopropoxide by the sol gel method. YSZ nanoparticles may be prepared in supercritical water (SCW). YSZ nanoparticles of different sizes with varying % mol of yttria may be obtained by CO2 laser based continuous/pulsed laser vaporization method.

Zirconium(IV) oxide-yttria stabilized (YSZ) (submicron powder) is an oxygen ion conductor with properties such as good ionic conductivity and high physiochemical stability. Its other properties include excellent shock resistance, low thermal conductivity and a high coefficient of thermal expansion.

Application

Collagen-yttria-stabilized amorphous zirconia hybrid scaffolds may be developed. YSZ thin films may be used as thermal barrier coatings on combustors, stationary and rotating components of gas turbines or diesel engines. 6

YSZ can be used for a variety of applications such as:
• a thermal barrier coating for the protection and insulation of metal components in gas turbines
• an electrolyte in the fabrication of solid oxide fuel cells (SOFCs)
• in the fabrication of zirconia dental implant abutments
• membranes for micro energy conversion devices
• a solid acid and a catalyst for catalytic applications

Electrolyte material for solid oxide fuel cells (SOFC).

Packaging

100, 500 g in glass bottle

Packaged in glass bottles

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

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. However, unlike fuel cells based on proton-conducting el...
Raymond J. Gorte
Material Matters Volume 5 Article 4
Keywords: Catalysis, Electrochemical reactions, Endothermic, Gene expression, Oxidations

Peer-Reviewed Papers
15

References

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