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Lanthanum Strontium Gallate Magnesite (LSGM)
Lanthanum Gallate doped with Strontium Oxide and Magnesium Oxide Fuel Cell Cathode
La2O3/GaO/MgO/SrO
Product
Product Code
Order or Specifications
Lanthanum Strontium Gallate Magnesite Powder
LSGM-P
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Lanthanum Strontium Gallate Magnesite Ink
LSGM-I
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American Elements specializes in producing lanthanum strontium gallate magnesite (LSGM) for fuel cell cathode applications solid oxide fuel cell anode (Nickel Cermet) by SEM utilizing solid state processing to produce single phase perovskite structures with various doping levels and surface areas (SSA) for use in thin film layers. Upon firing, American Elements' Lanthanum Strontium Gallate Magnesite will partially sinter to form well-defined necks and open gas paths to permit simultaneous gas and electrical transfer. Lanthanum Strontium Gallate Magnesite has an excellent thermal expansion match with Yttria Stabilized Zirconia (YSZ) electrolytes. It is highly electronically conductive and has proven long term stability. Lanthanum Strontium Gallate Magnesite belongs to a class of "A" site and "B" site doped perovskite structures with these properties. These include Lanthanum Strontium Manganite (LSM), Lanthanum Strontium Ferrite (LSF), Lanthanum Calcium Manganite (LCM), Lanthanum Strontium Chromite (LSC), and Lanthanum Strontium Cobaltite Ferrite (LSCF). Lanthanum Strontium Gallate Magnesite is available as a powder for tape casting, air spray/thermal spray/plasma spray, extrusion and sputtering fuel cell applications and as an ink for screen printing. Strontium and Magnesia doping levels are as specified by customer. Oxygen starved compositions are available. American Elements provides guidance on firing parameters, doping levels, and thermal expansion matching with American Elements' electrolyte and interconnect fuel cell layers.

Lanthanum is a Block F, Group 3, Period 6 element. The electronic configuration is [Xe] 5d1 6s2. In its elemental form lanthanum 's CAS number is 7439-91-0. The lanthanum atom has a radius of 187.pm and it's Van der Waals radius is 200.pm.

Strontium is a Block S, Group 2, Period 5 element. The electronic configuration is [Kr] 5s2. In its elemental form strontium's CAS number is 7440-24-6. The strontium atom has a radius of 215.1.pm and it's Van der Waals radius is 200.pm. Strontium has low tech applications as an additive to flares and pyrotechnics because of the bright crimson flame produced by its salts. Strontium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. It also has many high technology applications because of its high refractive index as a titanate in glass, as a "getter" in electron tubes and as a dopant for numerous perovskite formulations to produce cathodes for oxygen generation or solid oxide fuel cells.

Gallium is a Block P, Group 13, Period 4 element. The electronic configuration is [Ar] 3d10 4s2 4p1. In its elemental form gallium's CAS number is 7440-55-3. The gallium atom has a radius of 122.1.pm and it's Van der Waals radius is 187.pm. Gallium is one of three elements that naturally occur as a liquid at room temperature. The other two are mercury and cesium. The application of gallium that has received the most attention is the production of semiconducting compounds. Of these, the most important are the compounds of gallium with antimony, arsenic or phosphor.

Magnesium is a Block S, Group 2, Period 3 element. The electronic configuration is [Ne] 3s2. In its elemental form magnesium's CAS number is 7439-95-4. The magnesium atom has a radius of 159.9.pm and it's Van der Waals radius is 173.pm.

Formula CAS No. Appearance Molecular Weight Density Melting Point Boiling Point Solubility Stability
                 
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Recent Research & Development for Lanthanum

  • Metal ion-dependent, reversible, protein filament formation by a designed beta-roll polypeptide. BMC Struct Biol. 2007 Oct 1;7(1):63 [Epub ahead of print]

  • Complex formation reactions of lanthanum(III), cerium(III), thorium(IV), dioxouranyl(IV) complexes with tricine. Ann Chim. 2007 Aug;97(8):759-70.

  • [Is Lanthanum carbonate safer and more effective than calcium carbonate for hyperphosphatemia in dialysis patients?] G Ital Nefrol. 2007 Settembre-Ottobre;24(5):366. Italian.

  • Characterization of AtALMT1 Expression in Aluminum Inducible Malate Release and its Role for Rhizotoxic Stress Tolerance in Arabidopsis. Plant Physiol. 2007 Sep 20; [Epub ahead of print]

  • Development of heterogeneous base catalysts for biodiesel production. Bioresour Technol. 2007 Sep 18; [Epub ahead of print]

  • Emerging drugs for hyperphosphatemia. Expert Opin Emerg Drugs. 2007 Sep;12(3):355-65. Review.

  • Optimising the treatment of hyperphosphatemia and vascular calcification in chronic kidney disease. Expert Opin Emerg Drugs. 2007 Sep;12(3):341-3.

  • Poly(N-vinylcaprolactam-co-glycidyl methacrylate) Aqueous Microgels Labeled with Fluorescent LaF(3):Eu Nanoparticles. Langmuir. 2007 Oct 9;23(21):10793-10800. Epub 2007 Sep 14.

  • Effects of hyperosmotic stress on cultured airway epithelial cells. Cell Tissue Res. 2007 Nov;330(2):257-69. Epub 2007 Sep 4.

  • Structure and thermal decomposition of poly[[triaqua(mu(4)-oxydiacetato)lanthanum(III)] nitrate]. Acta Crystallogr C. 2007 Sep;63(Pt 9):m385-8. Epub 2007 Aug 9.

  • Structures and Spectroscopic Properties of Bis(phthalocyaninato) Yttrium and Lanthanum Complexes: Theoretical Study Based on Density Functional Theory Calculations.
    J Phys Chem A Mol Spectrosc Kinet Environ Gen Theory. 2007 Jan 18;111(2):392-400.

  • Depolarization evoked by acetylcholine in mesenteric arteries of hypertensive rats attenuates endothelium-dependent hyperpolarizing factor.
    J Hypertens. 2007 Feb;25(2):345-359.

  • Bis(mu-3-nitrobenzene-1,2-dicarboxylato)-kappa(8)O(1),O(2):O(2),O(3);O(3),O(2):O(2),O(1)-bis[triaqua(2-carboxy-3-nitrobenzoato-kappa(2)O,O')lanthanum(III)] dihydrate.
    Acta Crystallogr C. 2007 Jan;63(Pt 1):m10-2. Epub 2006 Dec 12.

  • Theoretical Study on the Motion of a La Atom Inside a C(82) Cage.
    J Phys Chem A Mol Spectrosc Kinet Environ Gen Theory. 2007 Jan 11;111(1):167-169.

  • Lack of pendrin HCO3- transport elevates vestibular endolymphatic [Ca2+] by inhibition of acid-sensitive TRPV5 and TRPV6 channels.
    Am J Physiol Renal Physiol. 2007 Jan 2; [Epub ahead of print]

  • Effect of lanthanum ions (La3+) on ferritin-regulated antioxidant process under PEG stress.
    Biol Trace Elem Res. 2006 Nov;113(2):193-208.

  • Halotolerance is enhanced in carrot callus by sensing hypergravity: influence of calcium modulators and cytochalasin D.
    Protoplasma. 2006 Dec;229(2-4):149-54. Epub 2006 Dec 16..

  • Planar trimethylenemethane dianion chemistry of lanthanide metallocenes: synthesis, structure, density functional theory analysis, and reactivity of [(C5Me5)2Ln]2[mu-eta3:eta3-C(CH2)(3] Complexes.
    J Am Chem Soc. 2006 Dec 20;128(50):16178-89.

  • Incredulous effects of lanthanum?
    Toxicol Lett. 2006 Nov 10; [Epub ahead of print] No abstract available.

  • Collapse of spherical polyelectrolyte brushes in the presence of multivalent counterions.
    Phys Rev Lett. 2006 Oct 13;97(15):158301. Epub 2006 Oct 9.

 

 

 

 

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