Solution combustion synthesis of nano particle La0.9Sr0.1MnO3 powder by a unique oxidant-fuel combination and its characterization

• Published in: Journal of materials science Vol. 41; no. 7; pp. 1939 - 1943
• Main Authors: SAHA, S, GHANAWAT, S. J, PUROHIT, R. D
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.04.2006; Springer Nature B.V
• Subjects: Applied sciences; Chemical synthesis methods; Combustion synthesis; Cross-disciplinary physics: materials science; rheology; Electrode materials; Energy; Energy. Thermal use of fuels; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc; Exact sciences and technology; Fuel cells; Glycine; High temperature; Lanthanum; Lanthanum compounds; Materials science; Methods of nanofabrication; Nanoparticles; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Physics; Self propagating high temperature synthesis; Sol-gel processes; Solid oxide fuel cells; Spray pyrolysis; Strontium; Scanning electron microscopy; Solid oxide fuel cells; Inorganic compounds; Lithium Strontium Manganites Mixed; Combustion; XRD; Electrode material; Experimental study; Ultrafine powder; Characterization; Fabrication; Nanoparticles; Strontium Manganites; Solid solutions; Lithium Manganites; Chemical synthesis; Nanostructured materials; Manganites; Growth from solution; Cathodes
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-006-2655-2

Strontium-doped lanthanum manganite (Li1-xSrxMnO3) is the most used cathode material in modern SOFCs. A solution combustion synthesis method is described using a unique combination of oxidant and fuel, nitrate-acetate stoichiometrically, which not only produces nano particle LSM powder but is safe even in large scale production due to gradual combustion without causing any fire hazard or explosion condition which is usually found in most of the solution combustion synthesis reactions. The powder obtained in this method was characterised by XRD, SEM, particle size analysis, surface area analysis etc. The results were quite good and suitable for SOFC application. This powder has also been used in forming tubular structures as a part of preliminary experiments to make solid oxide fuel small cell. 14 refs.