Electrochemical performance of spin coated dense BaZr0.80Y0.16Zn0.04O3-d membranes

The high sintering temperature of Yttrium doped barium zirconate (BZY), the most promising high temperature proton conductor (HTPC) for Intermediate Temperature (400 e750°C) Solid Oxide Fuel Cells (IT-SOFCs), has been reduced by using ZnO as a sintering aid. Obtaining a dense electrolyte at a reduced temperature allows conventional fuel cell preparation methods. A reproducible spin coating method to fabricate highly performing anode supported button cells with dense micrometric BZYZn electrolyte layers has been developed. The electrochemical characterization of button cells at 600°C shows promising performance, higher than that of comparable fuel cells from literature.