| 단위전지 제작을 통한 BaCe0.9M0.1O3−δ (M=La, Al)계 Proton 전도성 산화물 전해질의 특성평가 |
| 최순목, 정성민, 서원선, 이홍림1 |
요업기술원
1연세대학교 세라믹공학과 |
| Single Cell Test for Proton Conducting Oxide Electrolytes Based on the BaCe0.9M0.1O3−δ (M=La, Al) System |
| Soon-Mok Choi, Seong-Min Jeong, Won-Seon Seo, Hong-Lim Lee1 |
Korea Institute of Ceramic Engineering & Technology
1Department of Ceramic Engineering Yonsei University |
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| ABSTRACT |
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Proton conducting oxides based on the $BaCe_{0.9}M_{0.1}O_{3-{delta}}$ (M = La, AL) were tested for the alternative electrolyte materials of fuel cell. The power density for single cell of Air |Pt| $BaCe_{0.9}M_{0.1}O_{3-{delta}}$ |Pt| $H_2(3%H_2O)$ system was maximum $0.04W/cm^2$ at $1000^{circ}C$. In this system, proton transport number was proved to depend on the lattice parameters and the distortion of $CeO_6$ octahedral as a function of the ionic radii of acceptor ions. This proton conducting oxide system requires developing the new electrode materials for application. |
| Key words:
Proton conductor, Oxide electrolyte, $BaCeO_3$, Single cell |
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