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Merck

757357

Sigma-Aldrich

Lanthanum gallate, strontium and magnesium doped

greener alternative

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

Synonym(e):

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

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About This Item

Empirische Formel (Hill-System):
La0.8Sr0.2Ga0.8Mg0.2O3
CAS-Nummer:
Molekulargewicht:
237.29
UNSPSC-Code:
26111700
NACRES:
NA.23

Qualitätsniveau

Assay

99% trace rare earth metals basis

Form

powder

Grünere Alternativprodukt-Eigenschaften

Design for Energy Efficiency
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sustainability

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Oberflächenbereich

4-8 m2/g

Partikelgröße

0.3-0.6 μm
0.4-0.8 μm (d50)

mp (Schmelzpunkt)

>400 °C

Grünere Alternativprodukt-Kategorie

Allgemeine Beschreibung

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).
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Anwendung

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.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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Die Dokumentenbibliothek aufrufen

Chemical Preparation of Pure and Strontium-and/or Magnesium-Doped Lanthanum Gallate Powders
Tas A, et al.
Journal of the American Ceramic Society. American Ceramic Society, 83(12), 2954-2960 (2000)
SOFC composite electrolyte based on LSGM-8282 and zirconia or doped zirconia from zircon concentrate
Rahmawati F, et al.
International Journal of Minerals, Metallurgy, and Materials, 19(9), 863-871 (2012)
Hwang, C-S.; et al.
Journal of Power Sources, 196, 1932-1932 (2011)
Huang, P-N.; et al.
Journal of the Electrochemical Society, 143, 1644-1644 (1996)
Oxygen surface exchange and diffusion in LaGaO 3 based perovskite type oxides.
Ishihara T, et al.
Solid State Ionics, 113, 593-600 (1998)

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