Proton conducting BaCe0.9Y0.1O3-x (BCY10) thick films are deposited on cermet anodes made of nickel-yttrium doped barium cerate using electrophoretic deposition (EPD) technique. BCY10 powders are prepared by the citrate-nitrate auto-combustion method and the cermet anodes are prepared by the evaporation and decomposition solution and suspension method. The EPD parameters are optimized and the deposition time is varied between 1 and 5 min to obtain films with different thicknesses. The anode substrates and electrolyte films are co-sintered at 1550 °C for 2 h to obtain a dense electrolyte film keeping a suitable porosity in the anode, with a single heating treatment. The samples are characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersion spectroscopy (EDS). A prototype fuel cell is prepared depositing a composite La0.8Sr0.2Co0.8Fe0.2O 3 (LSCF)-BaCe0.9Yb0.1O3-δ (10YbBC) cathode on the co-sintered half cell. Fuel cell tests that are performed at 650 °C on the prototype single cells show a maximum power density of 174 mW cm-2.
Bibliographical noteFunding Information:
This work has been funded by the Ministry of University and Research (MiUR) of Italy under the frame of the FISR project “Polymeric and ceramic fuel cells: System validation and development of new materials” and of the PRIN project “Protonic Conducting Ceramics for Fuel Cells”. We gratefully thank Emiliana Fabbri for the preparation of the composite cathode.
- Electrophoretic deposition
- Fuel cells
- Protonic conductor
- Thick film
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering