초음파분무 열분해법을 이용한 고체산화물 연료전지용세리아계 복합체 전해질의 제조 및 특성
Synthesis and Characterization of a Ceria Based Composite Electrolyte for Solid Oxide Fuel Cells by an Ultrasonic Spray Pyrolysis Process
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Much research into fuel cells operating at a temperature below 800oC. is being performed. There are significantefforts to replace the yttria-stabilized zirconia electrolyte with a doped ceria electrolyte that has high ionic conductivityeven at a lower temperature. Even if the doped ceria electrolyte has high ionic conductivity, it also shows highelectronic conductivity in a reducing environment, therefore, when used as a solid electrolyte of a fuel cell, the powergenerationefficiency and mechanical properties of the fuel cell may be degraded. In this study, gadolinium-doped ceriananopowder with Al2O3 and Mn2O3 as a reinforcing and electron trapping agents were synthesized by ultrasonic pyrolysisprocess. After firing, their microstructure and mechanical and electrical properties were investigated and comparedwith those of pure gadolinium-doped ceria specimen.
Abstract
Much research into fuel cells operating at a temperature below 800oC. is being performed. There are significantefforts to replace the yttria-stabilized zirconia electrolyte with a doped ceria electrolyte that has high ionic conductivityeven at a lower temperature. Even if the doped ceria electrolyte has high ionic conductivity, it also shows highelectronic conductivity in a reducing environment, therefore, when used as a solid electrolyte of a fuel cell, the powergenerationefficiency and mechanical properties of the fuel cell may be degraded. In this study, gadolinium-doped ceriananopowder with Al2O3 and Mn2O3 as a reinforcing and electron trapping agents were synthesized by ultrasonic pyrolysisprocess. After firing, their microstructure and mechanical and electrical properties were investigated and comparedwith those of pure gadolinium-doped ceria specimen.
참고문헌 (12)
- R. M. Ormerod, , Chem. Soc. Rev., 32, pp.17~ (2003)
- Z. Shao, , Nature, 435, pp.795~ (2005)
- V. V. Khartona, , Solid State Ionics, 174, pp.135~ (2004)
- M. Han, , J. Power Sources, 165, pp.757~ (2007)
- E. Courtina, , J. Power Sources, 206, pp.77~ (2012)
- B. C. H. Steele, , Solid State Ionics, 129, pp.95~ (2000)
- R. Chockalingam, , J. Power Sources, 196, pp.1808~ (2011)
- A. I. Y. Tok, , Mater. Sci. Eng. A, 383, pp.229~ (2004)
- D. H. Prasad, , J. Eur. Ceram. Soc, 28, pp.3107~ (2008)
- T. Matsuia, , Solid State Ionics, 176, pp.663~ (2005)
- T. S. Zhang, , Mater. Res. Bull., 41, pp.563~ (2006)
- Zhang Tianshu, , Solid State Ionics, 148, pp.567~ (2002)