Nanostructured LSM/YSZ composite cathodes for IT-SOFC: A comprehensive microstructural study by electrostatic spray deposition

Agnès Princivalle (1) , Elisabeth Djurado (1)

1 LEPMI - Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces

The deposition of a composite electrode, which is consisting of a mixture of a solid electrolyte (8YSZ) and an electrocatalytic material (LSM) on YSZ substrate was studied by electrostatic spray deposition (ESD), a very successful technique to vary the surface morphology. The influence of two variable parameters such as YSZ content, nozzle to substrate distance, and their combinations were investigated on the films morphology. The surface morphology was also strongly influenced by the deposition temperature. Processes involved in the porous film formation are discussed. Nanostructured films based on pure LSM and YSZ phases with no traces of secondary phases were successfully deposited.

Mots clés: Electrostatic spray deposition; SOFC; Composite cathode; Thin films; LSM; YSZ

Domaines: Matériaux

Agnès Princivalle, Elisabeth Djurado. Nanostructured LSM/YSZ composite cathodes for IT-SOFC: A comprehensive microstructural study by electrostatic spray deposition. Solid State Ionics, 2008, 179 (33-34), pp. 1921-1928. ⟨10.1016/j.ssi.2008.05.006⟩. ⟨hal-00386322⟩