Oxyapatites as low temperature solid electrolytes : influence of crystal chemistry and physical form

• Main Author: An, Tao
• Other Authors: Christian Leo Kloc
• Format: Theses and Dissertations
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Chemistry::Crystallography::Chemical crystallography; DRNTU::Engineering::Materials::Energy materials; DRNTU::Science::Chemistry::Crystallography::Crystal structure and growth; DRNTU::Science::Chemistry::Crystallography::X-ray crystallography; DRNTU::Science::Chemistry::Crystallography::Electron microscopy
• Online Access: http://hdl.handle.net/10356/60488
• Institution: Nanyang Technological University

Lanthanoid silicates (Ln9.33Si6O26) adopt the hexagonal apatite structure and are under investigation as solid oxide fuel cell (SOFC) electrolytes due to their high oxide ion conductivity at intermediate temperatures (500 – 700°C). This superior property is attributed to an interstitial mechanism of...