High-Performance Solid-Oxide Fuel Cell Cathodes Based on Cobaltite Nanotubes

MARTÍN G. BELLINO; JOAQUÍN G. SACANELL; DIEGO G. LAMAS; ANA G. LEYVA; NOEMÍ E. WALSÖE DE RECA

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

ACS Publications

Año: 2007 vol. 129 p. 3066 - 3067

0002-7863

Nanostructured materials have recently attracted great interest due to their novel properties. They have already been used in power generation and storage devices, such as lithium-ion batteries, low-temperature fuel cells, etc. These materials are not employedin conventional SOFCs since grain growth is expected to occur at the typical operation temperatures of these devices. However, their use in IT-SOFCs deserves to be evaluated since grain growth can be minimized at this operation temperature range. 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.