Micro ceramic fuel cells with multilayered yttrium-doped barium cerate and zirconate thin film electrolytes

Kiho Bae, Dong Young Jang, Ho Jean Jung, Jun Woo Kim, Ji Won Son, Joon Hyung Shim

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


Multi- and mono-layered thin film electrolytes based on BaCe 0.9Y0.1O3-δ (BCY) and BaZr 0.85Y0.15O3-δ (BZY) ceramics are fabricated by pulsed laser deposition (PLD) for use in micro-protonic ceramic fuel cells (micro-PCFCs), and their microstructure and fuel cell performances are investigated. Fully dense and well-crystallized BCY and BZY layers are identified in the multi- and mono-layered electrolytes, and are confirmed by microstructural analyses. Fuel cell and impedance measurements confirm that the bare BCY cells exhibit superior performance to samples with BZY capping; however, this capping does not offer any advantage in terms of operational stability. In contrast, the BCY-capped BZY cell performs better than the bare BZY cell, implying that BCY possesses more active surface kinetics. Anodic improvement is as important as cathodic modification for the intermediate-temperature operation of PCFCs. The BCY-capped BZY cell also demonstrates excellent stability, maintaining a good open circuit voltage for over 10 h.

Original languageEnglish
Pages (from-to)1163-1169
Number of pages7
JournalJournal of Power Sources
Publication statusPublished - 2014

Bibliographical note

Funding Information:
The authors are grateful to the Fusion Research Program for Green Technologies of the National Research Foundation (NRF) of Korea funded by the Ministry of Education, Science, and Technology (MEST) (Grant No. NRF-2011-0019300 ), and to the Young Fellow Program of Korea Institute of Science and Technology (KIST) for financial support.


  • Micro-protonic ceramic fuel cell
  • Multilayer electrolyte
  • Pulsed laser deposition
  • Yttrium-doped barium cerate
  • Yttrium-doped barium zirconate

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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