INVESTIGADORES
SANCHEZ Rodolfo Daniel
artículos
Título:
Nanoparticles of La(1-x)SrxMnO3 (x=0.33,0.20) assembled into hollow nanostructures for solid soxide fuel cell
Autor/es:
A.G. LEYVA; J. CURIALE; H. E. TROIANI; M. ROSENBUSCH; P. LEVY.; R.D. SÁNCHEZ
Revista:
Advances in Science and Technology
Editorial:
Techna Group
Referencias:
Lugar: Faenza, Italy; Año: 2006 vol. 51 p. 54 - 59
ISSN:
1662-0356
Resumen:
We synthesized several
manganese oxide based compounds as nanoparticles assembled into hollow
nanostructures by wetting porous plastic templates. A two stage thermal process
was performed to obtain La0.80Sr0.20MnO3 and La0.66Sr0.33MnO3, the
typical nanoparticle diameter being around 20 nm. Self standing tubes can be
obtained with different selectable external diameter from 100 up to 800 nm.
These compounds are envisaged for their use as cathodes in solid oxide fuel
cells working at the intermediate temperature range, due to their unique
catalytic features. We characterize the microstructure of the obtained
material, and show the feasibility to deposit them on top of ytria stabilized
zirconia substrates. Strategies to further increase the specific area of the
cathode are briefly discussed.