| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.199 |
| 발표분야 |
공정시스템(Process Systems Engineering) |
| 제목 |
Effect of carbonate based co-dopants on structural and electrical properties of neodymium doped ceria electrolytes for solid oxide fuel cells |
| 초록 |
Neodymium doped ceria electrolyte has been synthesized using sol-gel route in fuel cells. Nitrate precursors were used. DC conductivity values for two compositions NDC20 and NDC25 were found to be 7.97×10-5 Scm-1 and 3.67×10-5 Scm-1, respectively at 650 °C. Smaller particle offered better conductivity which was achieved by synthesizing in acidic medium. The effect of various co-dopants on conductivity of neodymium doped ceria was investigated. Among the rare-earth co-dopants, SNDC performed better than YNDC in conductivity. Carbonate addition was studied by including 10 and 20 vol.% K2CO3 in NDC electrolyte. The resulting residual amorphous phase in NDC significantly improved the conductivity value from 7.97×10-5 Scm-1 to 3.26×10-4 Scm-1. Acknowledgments: This work was supported by the National Research Foundation (NRF) grant funded by the Korean government (MSIT) (No. NRF-2017R1E1A1A03070713), and Korea Ministry of Environment (MOE) as Graduate School specialized in Climate Change. |
| 저자 |
허성구1, Muhammad Akmal Rana2, 남기전3, 이가희1, 유창규1
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| 소속 |
1경희대, 2National Univesity of Science and Technology, 3Pakistan |
| 키워드 |
화학 및 생물공정; 공정합성; 공정 강화
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| E-Mail |
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| 원문파일 |
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