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757357 Sigma-Aldrich

Lanthanum gallate, strontium and magnesium doped

Green Alternative

powder, 0.3-0.6 μm, 99% trace rare earth metals basis

Synonym: Gallium lanthanum magnesium strontium oxide, LSGM 8282, LSGM, Lanthanum Strontium Gallate Magnesite, Strontium and Magnesium doped Lanthanum Gallate

  • CAS Number 165900-07-2

  • Empirical Formula (Hill Notation) La0.8Sr0.2Ga0.8Mg0.2O3

  • Molecular Weight 237.29

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Properties

Related Categories Alternative Energy, Chemical Synthesis, Electrolyte Materials, Electrolytes, Enabling Products,
Quality Level   100
assay   99% trace rare earth metals basis
  99% trace rare earth metals basis
form   powder
  powder
greener alternative product characteristics   Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
particle size   0.3-0.6 μm
  0.4-0.8 μm (d50)
surface area   spec. surface area 4-8 m2/g
mp   >400 °C

Description

General description

LSGM is an electrolyte material for intermediate temperature (below 800oC ) solid oxide fuel cells (IT-SOFC). LaGaO3 based pervoskite; doped with strontium and magnesium (LSGM) is known to exhibit high oxide ionic conductivity, on account of the high concentration and mobility of oxygen vacancies LSGM-8282 can be synthesized by solid state reaction between La2O3, MgO, SrCo3 and Ga2O at temperatures > 1000oC. Other known methods of producing LSGM are combustion synthesis, coprecipitation route, Pechini method for powder. Pechini method is popularly used in producing LSGM for solid oxide fuel cells (SOFCs).

Application

World-wide a number of activities are concerned with the optimization and development of cell materials and microstructures with the aim of reducing the solid oxide fuel cell (SOFC) operating temperatures. Reducing operating temperatures not only increases the life time of SOFC but also reduces cost of the total system.

Packaging

25 g in poly bottle

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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