화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.6, 3960-3964, November, 2014
DOI10.1016/j.jiec.2014.01.022  Export Citation
Characteristics of nano-sized perovskite structured LaSrMn derived from hydrothermally synthesized amorphous LaSrMn oxide powder
Sora Kang, Byeong Sub Kwak, Byung-Hyun Choi1, Sun-Min Park1, Mi-Jung Ji1, and Misook Kang†
  • Department of Chemistry, College of Science, Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Republic of Korea
  • 1Korean Institutes of Ceramic Engineering & Technology (KICET), Geumcheon-gu, Seoul 153-801, Republic of Korea
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Nano-sized and spherical shaped LaSrMn oxide particle was synthesized by thermal treatment at 900 ℃ for 3 h after hydrothermally treatment at 200 ℃ for 8 h, and characterized to be applied as a cathode material in solid oxide fuel cells. A spherical LSM nano-particle with sizes ranging from 100 to 120 nm was shown in SEM image and particle size distribution. The pellets of five types composed of x-wt% LSM synthesized and commercial y-wt% YSZ were manufactured and pre-sintered. Their ionic conductivities were enhanced responding to LSM concentrations, and it was the highest in 8LSM:2YSZ showing 74.0 S cm-1.
Keywords:SOFC;LaSrMn;Nano-sized;Spherical shape;Ionic conductivity
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