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Lanthanum gallate, strontium and magnesium doped

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

Synonym(s):

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

Empirical Formula (Hill Notation):
La0.8Sr0.2Ga0.8Mg0.2O3
CAS Number:
165900-07-2
Molecular Weight:
237.29
UNSPSC Code:
26111700
NACRES:
NA.23

Quality Level

100

assay

99% trace rare earth metals basis

form

powder

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surface area

4-8 m2/g

particle size

0.3-0.6 μm
0.4-0.8 μm (d50)

mp

>400 °C

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Enabling,

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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).
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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.

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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