Rubidium-containing material with exceptional oxide-ion conductivity and stability for lower temperature/ cost solid oxide fuel cells

https://www.eurekalert.org/news-releases/1074416

"superior performance due to low activation energy, large free volume, tetrahedral motion... can run on hydrogen, natural gas, biogas, or certain liquid hydrocarbons... overcomes cost, durability, operating temperature range issues... crystalline Rb-containing oxides have larger lattice/ free volumes, leading to lower activation energy for oxide-ion conductivity... palmierite-type oxide materials exhibited low energy barrier for oxide-ion migration... oxide-ion conductivity 29X that of yttria-stabilized zirconia"