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 journalArticle

27 Citations (Scopus)

Abstract

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
Volume248
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Protonic ceramic fuel cells (PCFC)
Yttrium
Barium
yttrium
Electrolytes
fuel cells
barium
Fuel cells
electrolytes
ceramics
Thin films
Open circuit voltage
Pulsed laser deposition
thin films
cells
Microstructure
Kinetics
impedance measurement
open circuit voltage
pulsed laser deposition

Keywords

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

ASJC Scopus subject areas

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

Cite this

Micro ceramic fuel cells with multilayered yttrium-doped barium cerate and zirconate thin film electrolytes. / Bae, Kiho; Jang, Dong Young; Jung, Ho Jean; Kim, Jun Woo; Son, Ji Won; Shim, Joon Hyung.

In: Journal of Power Sources, Vol. 248, 01.01.2014, p. 1163-1169.

Research output: Contribution to journalArticle

Bae, Kiho ; Jang, Dong Young ; Jung, Ho Jean ; Kim, Jun Woo ; Son, Ji Won ; Shim, Joon Hyung. / Micro ceramic fuel cells with multilayered yttrium-doped barium cerate and zirconate thin film electrolytes. In: Journal of Power Sources. 2014 ; Vol. 248. pp. 1163-1169.
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