Nanotubes of La0.6Sr0.4CoO3 for high performance cathodes of solid-oxide fuel cells

JOAQUIN SACANELL; MARTÍN BELLINO; DIEGO LAMAS; ANA GABRIELA LEYVA

Trieste, Italia

Conferencia; Conference on “From Physical Understanding to Novel Architectures of Fuel Cells”; 2007

International centre for Theoretical Physics

Perovskite-type mixed oxides, such as La1-xSrxCo1-yFeyO3 compounds, are at the present time one of the most widely used materials for cathode of intermediate temperature solid-oxide fuel cells. A significant increase of the specific area of the cathode can be achieved by preparing structures on the nanometric scale. In this work, nanocrystalline tubular structures of La0.6Sr0.4CoO3 (LSCO) were synthesized by denitration, using polycarbonate porous templates, microwave irradiation and a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure. a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure. materials for cathode of intermediate temperature solid-oxide fuel cells. A significant increase of the specific area of the cathode can be achieved by preparing structures on the nanometric scale. In this work, nanocrystalline tubular structures of La0.6Sr0.4CoO3 (LSCO) were synthesized by denitration, using polycarbonate porous templates, microwave irradiation and a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure. a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure. 1-xSrxCo1-yFeyO3 compounds, are at the present time one of the most widely used materials for cathode of intermediate temperature solid-oxide fuel cells. A significant increase of the specific area of the cathode can be achieved by preparing structures on the nanometric scale. In this work, nanocrystalline tubular structures of La0.6Sr0.4CoO3 (LSCO) were synthesized by denitration, using polycarbonate porous templates, microwave irradiation and a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure. a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure. 0.6Sr0.4CoO3 (LSCO) were synthesized by denitration, using polycarbonate porous templates, microwave irradiation and a further calcination at 800ºC. The shape and size of the tubes are determined by the characteristics of the template pores. In this work, we present a new type of highly porous nanostructured cathodes which exhibit very low polarization resistance, prepared from La0.6Sr0.4CoO3 nanotubes following a very simple procedure.0.6Sr0.4CoO3 nanotubes following a very simple procedure.