Fabrication and characterization of Ba(Zr0.84Y 0.15Cu0.01)O3-δ electrolyte-based protonic ceramic fuel cells

Jong Ho Lee, Sung Min Choi, Jong Heun Lee, Ho Il Ji, Kyung Joong Yoon, Ji Won Son, Byung Kook Kim, Hae June Je, Hae Weon Lee

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


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 C. From the process optimization of the thin BZYCu coating on the NiO-BZYCu anode substrate, we fabricated a 10-μm-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.

Original languageEnglish
Pages (from-to)9605-9611
Number of pages7
JournalCeramics International
Issue number8
Publication statusPublished - 2013 Dec

Bibliographical note

Funding Information:
This research was supported by the Fusion Research Program for Green Technologies through the National Research Foundation of Korea (NRF) , funded by the Ministry of Education, Science and Technology (2011–0019297) and in part by the Institutional Research Program of the Korea Institute of Science and Technology (KIST) .


  • BaZrO
  • E. Fuel cells
  • Proton conductor
  • Sintering additive
  • Thin electrolyte

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry


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