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572349 Sigma-Aldrich

Zirconium(IV) oxide-yttria stabilized

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



Related Categories Alternative Energy, Chemical Synthesis, Electrolyte Materials, Electrolytes, Enabling Products,
Quality Level   100
assay   92% ZrO2 basis
form   nanopowder
contains   8 mol % yttria as stabilizer
composition   (ZrO2)0.92(Y2O3)0.08
greener alternative product characteristics   Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
particle size   ≤100 nm
  5-10 nm (crystallite size)
surface area   >100 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


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 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) (nanopowder) 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.


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).


25 g in glass bottle

Packaged in glass bottles

Other Notes

Alternative CAS number: 114168-16-0

Safety & Documentation

Safety Information

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


Certificate of Analysis (COA)

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Protocols & 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

Thin Film Solid Oxide Fuel Cells

Fuel cells generate electricity through the oxidation of natural gas, hydrogen, or other fuels. Solid oxide fuel cells (SOFCs) utilize an oxide ion conducting solid oxide located between the electrod...

Keywords: Atomic layer deposition, Chemical vapor deposition, Deposition, Electrochemical reactions, Oxidations, Reductions, Sol-gel, Thin film deposition

Peer-Reviewed Papers


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