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 language | English |
|---|---|
| Pages (from-to) | 1163-1169 |
| Number of pages | 7 |
| Journal | Journal of Power Sources |
| Volume | 248 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
Fingerprint
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 journal › Article
}
TY - JOUR
T1 - Micro ceramic fuel cells with multilayered yttrium-doped barium cerate and zirconate thin film electrolytes
AU - Bae, Kiho
AU - Jang, Dong Young
AU - Jung, Ho Jean
AU - Kim, Jun Woo
AU - Son, Ji Won
AU - Shim, Joon Hyung
PY - 2014/1/1
Y1 - 2014/1/1
N2 - 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.
AB - 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.
KW - Micro-protonic ceramic fuel cell
KW - Multilayer electrolyte
KW - Pulsed laser deposition
KW - Yttrium-doped barium cerate
KW - Yttrium-doped barium zirconate
UR - http://www.scopus.com/inward/record.url?scp=84887450869&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84887450869&partnerID=8YFLogxK
U2 - 10.1016/j.jpowsour.2013.10.057
DO - 10.1016/j.jpowsour.2013.10.057
M3 - Article
VL - 248
SP - 1163
EP - 1169
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -