Articles
  • Proton conduction in the system of La1-xBaxScO3-d perovskite oxides  
  • Kyu Hyoung Leea, Hye Lim Kima, Shin Kimb and Hong Lim Leea,*
  • a Department of Ceramic Engineering, Yonsei University, Seoul 120-749, Korea b Yonsei Center for Clean Technology, Yonsei University, Seoul 120-749, Korea
Abstract
The phase formation and proton conduction in a BaO doped LaScO3 with the perovskite structure were studied. La0.6Ba0.4ScO2.8 was analyzed as a single cubic phase and La0.9Ba0.1ScO3-d, La0.8Ba0.2ScO3-d and La0.7Ba0.3ScO3-d were analyzed to consist of two cubic and orthorhombic phases. Below 300°C, all compositions were found to be pure proton conductors in the presence of water vapor. The bulk conductivity of La0.6Ba0.4ScO2.8 was higher than that of any other composition.

Keywords: proton conduction, BaO doped LaScO3, perovskite structure, bulk conductivity

This Article

  • 2002; 3(3): 128-131

    Published on Sep 30, 2002