Choi, Sung Min Lee, Jong-Heun Ji, Ho Il Yoon, Kyung Joong Son, Ji-Won Kim, Byung-Kook Je, Hae June Lee, Hae-Weon Lee, Jong-Ho 2024-01-20T11:02:28Z 2024-01-20T11:02:28Z 2021-09-04 2013-12 0272-8842 https://pubs.kist.re.kr/handle/201004/127403 Protonic ceramic fuel cells (PCFCs) were successfully fabricated by using 15 mol% Y-doped BaZrO3-based electrolytes that have fairly good electrical conductivity and chemical stability. In order to overcome the poor sinterability of the BaZrO3-based electrolytes, which is a critical limitation in making a thin-film electrolyte for electrode-supported PCFCs, we utilized sintering aid-assisted enhanced sintering by adding 1 mol % of CuO, thereby reducing the sintering temperature of the constrained thin electrolyte on a rigid electrode substrate to below 1500 degrees C. From the process optimization of the thin BZYCu coating on the NiO BZYCu anode substrate, we fabricated a 10-mu m-thick thin and dense electrolyte layer that exhibited an open-circuit voltage (OCV) close to that of the theoretical OCV of 0.98 V. However, improving the electrochemical performance by optimizing the electrode microstructure, especially in terms of the electrochemical activity of the anode and the current-collecting efficiency of the cathode, is the major concern of forthcoming study. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved. English ELSEVIER SCI LTD DOPED BARIUM ZIRCONATE CONDUCTING OXIDES SOFC MICROSTRUCTURE TECHNOLOGIES STABILITY Fabrication and characterization of Ba(Zr0.84Y0.15Cu0.01)O3-delta electrolyte-based protonic ceramic fuel cells Article 10.1016/j.ceramint.2013.05.081 1 CERAMICS INTERNATIONAL, v.39, no.8, pp.9605 - 9611 CERAMICS INTERNATIONAL 39 8 9605 9611 scie scopus 000325835100136 2-s2.0-84883827145 Materials Science, Ceramics Materials Science Article DOPED BARIUM ZIRCONATE CONDUCTING OXIDES SOFC MICROSTRUCTURE TECHNOLOGIES STABILITY E. Fuel cells Proton conductor Thin electrolyte Sintering additive BaZrO3