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http://dx.doi.org/10.5229/JKES.2007.10.1.007

Synthesis and Characterization of La0.75Sr0.25FeO3 Used as Cathode Materials for Solid Oxide Fuel Cell by GNP Method  

Park, Ju-Hyun (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Son, Hui-Jeong (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Lim, Tak-Hyoung (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Lee, Seung-Bok (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Yun, Ki-Seok (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Yoon, Soon-Gil (Department of Material Engineering, Chungnam National Univ.)
Shin, Dong-Ryul (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Song, Rak-Hyun (Advanced Fuel Cell Research Center, Korea Institute of Energy Research)
Publication Information
Journal of the Korean Electrochemical Society / v.10, no.1, 2007 , pp. 7-13 More about this Journal
Abstract
We synthesized and investigated $La_{0.75}Sr_{0.25}FeO_3$ by Glycine Nitrate Process(GNP) method used as cathode materials for SOFC(solid oxide fuel cell). Optimized amount of glycine is 3.17 mol. ICP elemental composition analysis indicated that the stoichiometry of the synthesized powders have nearly nominal values. SEM images and XRD patterns reveal that the synthesized powder has uniform size distribution and high degree of crystallinity. The sample powders were isostatically pressed to form a pellet. The green body was sintered at $1200^{\circ}C$ and the relative density of the sintered specimens were measured by Archimedes mettled. We measured electrochemical performance of LSF by AC impedance spectroscopy. Resistance of LSF shows lower value than that of LSM throughout all temperature region. The anode-supported solid oxide fuel cell showed a performance of $342mW/cm^2(0.7V,\;488mA/cm^2)$ at $750^{\circ}C$. The electrochemical characteristics of the single cell were examined by at impedance method.
Keywords
Glycine Nitrate Process; $La_{0.75}Sr_{0.25}FeO_3$; Cathode; AC impedance spectroscopy;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 J. S. Kim, S.-I. Pyun, and J. W. Lee, J. Solid State Electr., 11 (2006)
2 S. P. Simner, J. P. Shelton, M. D. Anderson, and J. W. Stevenson, Solid State Ionics, 161, 11-18 (2003)   DOI   ScienceOn
3 S. Simner, M. Anderson, J. Bonnett, and J. Stevenson, Solid State Ionics, 175, 79-81 (2004)   DOI   ScienceOn
4 손희정, 이혜종, 임탁형, 송락현, 백동현, 신동열, 현상훈, John Kilner, '졸-겔법을 이용한 고체산화물연료전지의 전해질 박막 제조 및 가스 투과도', Journal of the Korean Ceramic Society, 42(12), 827 (2005)   DOI   ScienceOn
5 구본석, 윤회성, 김병호, 'Glycine-Nitrate Process를 이용한 $La_{0.5}Sr_{0.5}MnO_{3}-Ce_{0.8}Gd_{0.2}O_{1.9}$ 환원극 제조 및 특성평가' Journal of the Korea Ceramic Society Vol. 38, No.1, pp.45-51 2001
6 Andreas Mai, Vincent A.C. Haanapel, Sven Uhlenbruck, Frank Tietz, Detlev Stover, Solid State Ionics, 176, 1341-1350 (2005)   DOI   ScienceOn
7 J.M. Ralph, C. Rossignol, R. Kumar, Journal of The Electrochemical Society, 150(11), A1518-A1522 (2003)   DOI   ScienceOn
8 H. Ullmann, N. Trofimenko, F. Tietz, D. St?ver, A. Ahmad-Khanlou, Solid State Ionics, 138 (2000)
9 S. P. Simner, J. S. Hardy, J. W. Stevenson, and T. R. Armstrong, Solid State Ionics, 128, 53-63 (2000)   DOI   ScienceOn
10 M. D. Anderson, J. W. Stevenson, and S. P. Simner, Journal of Power sources, 129, 188-192 (2004)   DOI   ScienceOn
11 L. A. Chick, L. R. Pederson, G. D. Maupin, J. L. Bates, L. E. Thomas, and G. J. Exarhos, Mater. Lett., 10(1-2), 6 (1990)   DOI   ScienceOn
12 Ulrich Schubert, Nicola Husing, 'Synthesis of Inorganic Materials', 181-191, WILEY-VCH, Weinheim (2005)
13 김선재, 정충환, 김경호, 김영석, 국일현, 'Self-Sustaining Combustion Process를 이용한NIO/YSZ 초미세 복합분말의 제조' Journal of the Korea Ceramic Society, 33(4), 411-417 (2001)
14 S.R. Jain, K.C. Adiga, Combustion and Flame 40 (1981) 71-79   DOI   ScienceOn
15 유승호, 송근숙, 손희정, 김종희, 송락현, 정두환, 백동현, 신동열, '테입캐스팅을 이용한 대면적 (100$cm^{2}$)연료극 지지체식 평판형 고체산화물 연료전지의 개발', Journal of the Korean Electrochemical Society, 5(1), 41-47 (2003)
16 김종희, 송락현, '연료극 지지체식 평관형 고체산화물 연료전지 특성 연구', Journal of the Korean Electrochemical Society, 7(2), 94-99 (2004)   DOI   ScienceOn