Functional layers for solid oxide fuel cells

The purpose of the project was to develop a new planar design of oxide fuel cells containing functional layers made by low cost, low temperature chemical deposition methods. The project proposed the use of contact layers, diffusion blocking layers and functional layers that significantly reduce ohmic and polarization resistances. Low-temperature and low-cost application methods, such as aerosol pyrolysis and spin coating, have been used to create these layers, which use metallo-organic polymer precursors. Research has allowed determining the technological parameters of these methods, allowing the application of layers characterized by suitable properties such as good adhesion in low temperature, appropriate density and thickness. Using low-temperature methods to prepare ceramic layers, nanocrystalline materials with high electrochemical activity were produced. The aerosol pyrolysis method has allowed for thin and dense electroceramic layers fabrication. The use of advanced methods of electrical characterization of cells and symmetric electrodes using impedance spectroscopy allowed differentiating individual electrode processes and determination the influence of new layers on their performance.

More info at: Sensor group website

Founding: National Science Centre Poland, OPUS 2012/05/B/ST7/02153