TITLE:
Synthesis and Characterization of La0.75Sr0.25Cr0.5Mn0.5O3-δ Nanoparticles Using a Combustion Method for Solid Oxide Fuel Cells
AUTHORS:
V. S. Reddy Channu, Rudolf Holze, Edwin H. Walker, Rajamohan R. Kalluru
KEYWORDS:
Nanoparticles; Combustion method; Morphology; Carriers
JOURNAL NAME:
New Journal of Glass and Ceramics,
Vol.1 No.2,
July
21,
2011
ABSTRACT: La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCM) perovskite nanoparticles for use as anode material in intermediate temperature solid oxide fuel cells (IT-SOFCs) were synthesized using 3,3’,3”- nitrilotripropionic acid (NTP), citric acid and oxalic acid as carriers via a combustion method. The influence of the carrier on phase and morphology of the obtained pristine products was characterized using X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and scanning electron microscopy (SEM). XRD results showed, that the LSCM had rhombohedral symmetry with R-3c space group; a single phase LSCM perovskite formed after calcination of fired gel at 1200°C for 7 h. Scanning electron microscopy analysis of the pristine powders showed spherical shape and particle sizes in the range of 50 – 500 nm.