Electrochemical Performance of SOFC Components Fabricated by Spray Pyrolysis Method

Abstract

The method of Spray Pyrolysis (SP) was applied to prepare thin films of electrodes for Solid Oxide Fuel Cell (SOFC) components. Film microstructure was analyzed by scanning electron microscopy (SEM) and was found that thin defect-free films with excellent adhesion to the substrate could be produced on dense substrates. X-ray diffraction (XRD) analysis showed that the films were crystalline after the deposition at relatively low (i.e. 700 °C) post-deposition sintering temperatures. Electrochemical tests of structures of Cu-LSCM/YSZ/LSM, Cu-LSCM/CGO/LSCF, Cu-CeO 2 /YSZ/Pt and Co-CeO 2 /ScSZ/LSM where the electrodes deposited on top of electrolytic CGO, YSZ and ScSZ dense substrates showed that it is possible to obtain SOFC electrodes with sufficient electrochemical performance fabricated by spray pyrolysis.