Oxygen Migration in Dense Spark Plasma Sintered Aluminum-Doped Neodymium Silicate Apatite Electrolytes

• Main Authors: An, Tao, Baikie, Tom, Herrin, Jason, Brink, Frank, Felix Shin, J., Slater, Peter R., Li, Sean, White, Timothy John
• Other Authors: Wei, W.-C.
• Format: Article
• Language: English
• Published: 2016
• Subjects: Intrinsic conductivity; Electrolytes
• Online Access: https://hdl.handle.net/10356/82020; http://hdl.handle.net/10220/39762
• Institution: Nanyang Technological University

Neodymium silicate apatites are promising intermediate temperature (500°C–700°C) electrolytes for solid oxide fuel cells. The introduction of Al promotes isotropic percolation of O2−, and at low levels (0.83–2.0 wt% Al) enhances bulk conductivity. To better understand the effect of Al-doping on intr...