High Proton Conduction in the Octahedral Layers of Fully Hydrated Hexagonal Perovskite-Related Oxides

Abstract

Proton conductors have potential applications such as fuel cells, electrolysis cells, and sensors. These applications require new materials with high proton conductivity and high chemical stability at intermediate temperatures. Herein we report a series of new hexagonal perovskite-related oxides, Ba

Distinct Intercalation and Conduction Behaviors within an Isostructural Series Ba5R2Al2SnO13

“…Finally, we note that between submission and publication of the present study, another paper was submitted and published reporting the synthesis and characterization of Ba 5 R 2 Al 2 SnO 13 for R = Gd, Dy, Ho, Y, Er, Tm, and Yb; i.e., not including R = In or Tb, the latter being a major focus of the present study. Overlapping results for R = Ho, Y, and Er appear consistent in the context of slightly different methodologies (notably the use of bulk conductivity vs total conductivity in the present study) and data sets (notably the inclusion of high-temperature neutron powder diffraction and inelastic neutron scattering data in the present study).…”