| 졸-겔법을 이용한 고체산화물연료전지의 전해질 박막 제조 및 가스 투과도 |
| 손희정, 이혜종, 임탁형, 송락현, 백동현, 신동열, 현상훈1, John Kilner2 |
한국에너지기술연구원 수소연료전지연구부 신연료전지연구센터
1연세대학교 세라믹공학과 |
| Preparation of Thin Film Electrolyte for Solid Oxide Fuel Cell by Sol-Gel Method and Its Gas Permeability |
| Hui-Jeong Son, Hye-Jong Lee, Tak-Hyoung Lim, Rak-Hyun Song, Dong-Hyun Peck, Dong-Ryul Shin, Sang-Hoon Hyun1, John Kilner2 |
Hydrogen and Fuel Cell Research Department, Korea Institute of Energy Research
1Department of Ceramic Engineering, Yonsei University
2Department of Materials, Imperial College London |
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| ABSTRACT |
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In this study, thin electrolyte layer was prepared by 8YSZ ($8mol%$ Yttria-Stabilized Zirconia) slurry dip and sol coating onto the porous anode support in order to reduce ohmic resistance. 8YSZ polymeric sol was prepared from inorganic salt of nitrate and XRF results of xerogel powder exhibited similar results $(99.2pm1wt%)$ compared with standard sample (TZ-8YS, Tosoh Co.). The dense and thin YSZ film with $1{mu}m$ thickness was synthesized by coating of 0.7M YSZ sol followed by heat-treatment at $600^{circ}C$ for 1 h. Thin film electrolyte sintered at $1400^{circ}C$ showed no gas leakage at the differential pressure condition of 3 atm. |
| Key words:
Solid oxide fuel cell, Electrolyte, 8YSZ polymeric sol, Sol-gel process, Inorganic salts |
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