Output details
13 - Electrical and Electronic Engineering, Metallurgy and Materials
University of Sheffield : B - Materials Science and Engineering
A family of oxide ion conductors based on the ferroelectric perovskite Na0.5Bi0.5TiO3
Solid Oxide Fuel Cells (SOFCs) represent an important and emergent market (~ $530M by 2016) in the development of clean, efficient and renewable energy. There is a technological need to drive operating temperatures below 500C, which requires the development of new oxide-ion conducting electrolytes. As part of an international collaboration (de Sousa, Aachen; Kilner, Imperial College) we have established chemically doped sodium bismuth titanate to be an unexpected and excellent family of electrolytes for such applications. This discovery opens up a new direction in designing solid electrolytes based on oxide-ion conducting perovskites and thereby develop new lower temperature SOFCs.