Solid ozide proton conducting steam electrolysers
Proton conducting ceramics based on acceptor doped perovskites are the subject of investigation as candidate electrolyte materials for Solid Oxide Electrolyser Cells (SOECs) that operate at intermediate temperatures. Initial work has focused on BaCe0.9Y0.1O3-δ (BCY10) and BaZr0.9Y0.1O3-δ(BZY10) as these materials have been proven to have high proton conductivities K.H. Ryu, M. Haile, Solid State Ionics 125 (1999) 355. Conductivity data from AC impedance spectroscopy measurements for BCY10 is in agreement with the literature. BZY10 doped with 1 wt.% ZnO was found to have a significantly lower conductivity between 200 and 600℃ than BCY10. BCY10 has been confirmed as a suitable electrolyte material for a reversible proton conducting solid oxide fuel cell. Large losses are observed at lower temperatures in electrolysis mode and are attributed to the slow progression of reactions at the electrodes.
Solid ozide steam electrolyser Proton conductor Barium cerate Barium zirconate
Paul A.Stuart Toshiyuki Unno John A.Kilner Stephen J.Skinner
Department of Materials, Imperial College London, Exhibition Road, London, SW7 2AZ, England, United Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, S8-11, 2-12-1, O-okaya
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1120-1124
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）